{"id":500,"date":"2026-07-30T03:08:24","date_gmt":"2026-07-30T03:08:24","guid":{"rendered":"https:\/\/superiortransmissioninc.com\/?post_type=product&#038;p=500"},"modified":"2026-07-30T03:08:24","modified_gmt":"2026-07-30T03:08:24","slug":"ep-wpa-single-speed-reducer-0-13-to-9-l-oil-capacity","status":"publish","type":"product","link":"https:\/\/superiortransmissioninc.com\/fa\/product\/ep-wpa-single-speed-reducer-0-13-to-9-l-oil-capacity\/","title":{"rendered":"EP-WPA Single Speed Reducer-0.13 to 9 L Oil Capacity"},"content":{"rendered":"<div style=\"width: 100%; max-width: 100%; min-width: 100%; font-family: Arial,sans-serif; line-height: 1.7; color: #333;\">\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #f4f7fb; border-left: 5px solid #2a5caa; padding: 22px 28px; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #1a3a6b; margin: 0 0 10px 0;\">EP-WPA Single Speed Reducer \u2014 0.13 to 9 L Oil Capacity Series<\/h2>\n<p style=\"margin: 0; color: #555;\">A precision-engineered <strong>single speed reducer<\/strong> built for demanding industrial drive applications. Every <strong>single speed reducer<\/strong> in this series delivers reliable worm gear speed reduction across a wide range of frame sizes, ratios, and shaft configurations \u2014 offering long service life, compact design, and quiet operation.<\/p>\n<\/div>\n<h2 style=\"color: #1a3a6b; border-bottom: 2px solid #2a5caa; padding-bottom: 6px;\">Technical Specifications \u2014 EP-WPA Series<\/h2>\n<p>The table below lists the full dimensional and capacity data for the EP-WPA <strong>single stage speed reducer<\/strong> series of the <strong>single speed reducer<\/strong> family. All external dimensions are in millimeters (mm); oil capacity in liters (L); weight in kilograms (kg). On mobile devices, scroll horizontally to view all columns.<\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; box-sizing: border-box;\">\n<table style=\"width: 100%; border-collapse: collapse; table-layout: fixed; min-width: 900px;\">\n<thead>\n<tr style=\"background: linear-gradient(90deg,#1a3a6b 0%,#2a5caa 100%); color: #fff;\">\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">Size<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">Ratio<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">A<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">AB<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">B<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">BB<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">CC<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">H<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">HL<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">M<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">N<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">E<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">F<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">G<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">Z<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">HS<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">U<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">T\u00d7V<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">LS<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">S<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">W\u00d7Y<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">Weight (kg)<\/th>\n<th style=\"padding: 9px 7px; text-align: center; white-space: nowrap;\">Oil (L)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #f0f4fb;\">\n<td style=\"padding: 8px 7px; text-align: center;\">40<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">\u2014<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">143<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">87<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">114<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">74<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">40<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">138<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">40<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">90<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">100<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">70<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">80<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">13<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">10<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">25<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">12<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">4\u00d72.5<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">28<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">14<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">5\u00d73<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">4<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">0.13<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px 7px; text-align: center;\">50<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">\u2014<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">175<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">108<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">150<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">97<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">50<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">176<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">50<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">120<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">140<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">95<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">110<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">15<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">12<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">30<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">12<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">4\u00d72.5<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">40<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">17<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">5\u00d73<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">7<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">0.17<\/td>\n<\/tr>\n<tr style=\"background: #f0f4fb;\">\n<td style=\"padding: 8px 7px; text-align: center;\">60<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">1\/5<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">198<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">120<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">168<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">112<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">60<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">204<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">60<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">130<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">150<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">105<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">120<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">20<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">12<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">40<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">15<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">5\u00d73<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">50<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">22<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">7\u00d74<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">10<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">0.22<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px 7px; text-align: center;\">70<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">1\/10<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">231<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">140<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">194<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">131<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">70<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">236<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">70<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">150<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">190<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">115<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">150<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">20<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">15<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">40<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">18<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">6\u00d73<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">60<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">28<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">7\u00d74<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">15<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">0.60<\/td>\n<\/tr>\n<tr style=\"background: #f0f4fb;\">\n<td style=\"padding: 8px 7px; text-align: center;\">80<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">1\/15<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">261<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">160<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">214<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">142<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">80<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">268<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">80<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">170<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">220<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">135<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">180<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">20<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">15<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">50<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">22<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">7\u00d74<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">65<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">32<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">10\u00d74.5<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">20<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">0.85<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px 7px; text-align: center;\">100<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">1\/20<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">322<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">190<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">254<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">169<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">100<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">336<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">100<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">190<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">270<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">155<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">220<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">25<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">15<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">50<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">25<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">7\u00d74<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">75<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">38<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">10\u00d74.5<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">35<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">1.50<\/td>\n<\/tr>\n<tr style=\"background: #f0f4fb;\">\n<td style=\"padding: 8px 7px; text-align: center;\">120<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">1\/25<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">371<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">219<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">282<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">190<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">120<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">430<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">120<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">230<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">320<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">180<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">260<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">30<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">18<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">65<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">30<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">7\u00d74<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">85<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">45<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">12\u00d74.5<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">60<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">3.20<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px 7px; text-align: center;\">135<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">1\/30<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">422<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">249<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">317<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">210<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">135<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">480<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">135<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">250<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">350<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">200<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">290<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">30<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">18<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">75<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">35<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">10\u00d74.5<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">95<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">55<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">16\u00d76<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">80<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">3.60<\/td>\n<\/tr>\n<tr style=\"background: #f0f4fb;\">\n<td style=\"padding: 8px 7px; text-align: center;\">147<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">1\/40<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">432<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">255<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">320<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">210<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">147<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">460<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">123<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">253<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">350<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">200<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">280<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">32<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">18<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">75<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">35<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">10\u00d74.5<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">95<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">55<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">16\u00d76<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">98<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">3.70<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px 7px; text-align: center;\">155<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">1\/50<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">497<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">295<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">382<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">252<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">155<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">531<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">135<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">275<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">390<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">220<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">320<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">35<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">21<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">85<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">40<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">12\u00d75<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">110<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">60<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">18\u00d77<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">110<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">3.80<\/td>\n<\/tr>\n<tr style=\"background: #f0f4fb;\">\n<td style=\"padding: 8px 7px; text-align: center;\">175<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">1\/60<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">534<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">314<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">388<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">255<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">175<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">600<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">160<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">310<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">430<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">250<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">350<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">40<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">21<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">85<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">45<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">14\u00d75.5<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">110<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">65<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">18\u00d77<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">150<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">4.60<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 8px 7px; text-align: center;\">200<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">\u2014<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">580<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">342<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">456<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">319<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">200<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">666<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">175<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">360<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">480<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">290<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">390<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">40<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">24<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">95<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">50<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">14\u00d75.5<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">125<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">70<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">20\u00d77.5<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">215<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">6.50<\/td>\n<\/tr>\n<tr style=\"background: #f0f4fb;\">\n<td style=\"padding: 8px 7px; text-align: center;\">250<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">\u2014<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">703<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">420<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">552<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">385<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">250<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">800<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">200<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">460<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">560<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">380<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">480<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">45<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">28<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">110<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">60<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">18\u00d77<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">145<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">90<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">25\u00d79<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">360<\/td>\n<td style=\"padding: 8px 7px; text-align: center;\">9.00<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"color: #777; margin-top: 8px;\">All dimensions in mm. Oil capacity in L. Weight in kg. Specifications subject to customization on request for any <strong>single speed reducer<\/strong> model.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-503\" src=\"https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/07\/superiortransmissioninc-products-EP-WPA-Single-Speed-Reducer-0.13-to-9-L-Oil-Capacity-Series-draft.webp\" alt=\"superiortransmissioninc-products-EP-WPA Single Speed Reducer-0.13 to 9 L Oil Capacity Series-draft\" width=\"1000\" height=\"500\" title=\"\" srcset=\"https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/07\/superiortransmissioninc-products-EP-WPA-Single-Speed-Reducer-0.13-to-9-L-Oil-Capacity-Series-draft.webp 1000w, https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/07\/superiortransmissioninc-products-EP-WPA-Single-Speed-Reducer-0.13-to-9-L-Oil-Capacity-Series-draft-980x490.webp 980w, https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/07\/superiortransmissioninc-products-EP-WPA-Single-Speed-Reducer-0.13-to-9-L-Oil-Capacity-Series-draft-480x240.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1000px, 100vw\" \/><!-- 5 Key Advantages --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 32px; box-sizing: border-box;\">\n<h2 style=\"color: #1a3a6b; border-bottom: 2px solid #2a5caa; padding-bottom: 6px;\">Five Key Advantages of the EP-WPA Single Speed Reducer<\/h2>\n<div style=\"display: flex; flex-wrap: wrap; gap: 16px; width: 100%; max-width: 100%; min-width: 100%; box-sizing: border-box;\">\n<div style=\"flex: 1 1 calc(50% - 16px); min-width: 240px; background: #eef3fb; border-radius: 8px; padding: 18px 20px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 8px 0;\">\u2460 Wide Size Range<\/h3>\n<p style=\"margin: 0;\">Frame sizes from 40 to 250 mm center distance cover light-duty conveyor drives through heavy industrial applications, giving engineers a scalable single speed gear reducer solution within a single product family. By standardizing on this <strong>single speed reducer<\/strong>, you avoid switching suppliers or adapting mounting interfaces.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 16px); min-width: 240px; background: #eef3fb; border-radius: 8px; padding: 18px 20px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 8px 0;\">\u2461 Multiple Shaft Directions<\/h3>\n<p style=\"margin: 0;\">Five configurable shaft direction options (A, B, C, D, E) let installers match the <strong>single speed reducer transmission<\/strong> layout to the machine frame without complex couplings or right-angle adapters. This makes the <strong>single speed reducer<\/strong> highly adaptable, reducing assembly cost and potential misalignment points.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 16px); min-width: 240px; background: #eef3fb; border-radius: 8px; padding: 18px 20px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 8px 0;\">\u2462 Broad Gear Ratio Selection<\/h3>\n<p style=\"margin: 0;\">Ratios from 1\/5 to 1\/60 make this <strong>single speed reducer<\/strong> adaptable to a wide spectrum of output speed requirements \u2014 from relatively fast auxiliary drives at 1\/5 down to slow-speed, high-torque actuation systems at 1\/60 \u2014 all within the same housing series.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 16px); min-width: 240px; background: #eef3fb; border-radius: 8px; padding: 18px 20px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 8px 0;\">\u2463 Self-Contained Oil Bath Lubrication<\/h3>\n<p style=\"margin: 0;\">The sealed oil-bath design eliminates the need for external grease re-lubrication schedules. Precision-ground surfaces and carefully calculated oil volumes (0.13 L to 9.0 L by frame size) keep operating temperatures stable and gear surface wear minimal across continuous-duty cycles for this <strong>single speed reducer<\/strong>.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 16px); min-width: 240px; background: #eef3fb; border-radius: 8px; padding: 18px 20px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 8px 0;\">\u2464 Direct Mounting Compatibility<\/h3>\n<p style=\"margin: 0;\">Standard flanged foot-mount base with 4-bolt Z pattern allows direct motor coupling without custom adapters. The EP-WPA <strong>single speed reducer<\/strong> integrates cleanly with standard IEC-frame <a style=\"color: #2a5caa;\" href=\"https:\/\/superiortransmissioninc.com\/fa\/electric-motors\/\">electric motors<\/a>, reducing procurement complexity for system builders and OEM assemblers worldwide.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- Working Principle --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 32px; box-sizing: border-box;\">\n<h2 style=\"color: #1a3a6b; border-bottom: 2px solid #2a5caa; padding-bottom: 6px;\">How the Single Speed Reducer Works<\/h2>\n<p>At the core of the EP-WPA <strong>single speed reducer<\/strong> is the interaction between a helical-threaded worm shaft and a bronze worm wheel. The worm shaft \u2014 coupled to the motor input \u2014 rotates around its horizontal axis and drives the worm wheel through continuous sliding and rolling contact along the tooth flanks. Because the gear ratio is determined by the ratio of worm wheel teeth to the worm&#8217;s lead (number of thread starts), very high ratios can be achieved in a single mesh without requiring multi-stage gearing. This <strong>single stage right-angle worm-gear speed reducer<\/strong> design provides high torque. This is the fundamental advantage of a <strong>single speed reducer<\/strong>: compact packaging at high ratio.<\/p>\n<p>The motion transfer is inherently smooth due to the oblique contact angle between worm and wheel, which distributes load across multiple tooth contacts simultaneously. This characteristic reduces vibration and operating noise compared to spur or helical gear pairs, making the WPA series a preferred <strong>single speed reducer<\/strong> in noise-sensitive environments such as food processing lines, textile machinery, and automated assembly equipment. The right-angle shaft arrangement allows a 90\u00b0 change in rotational axis direction within a single housing, saving space compared to inline reducer configurations.<\/p>\n<p>Oil-bath lubrication keeps the gear mesh continuously wetted, carrying away heat generated by sliding friction at the worm contact zone. The oil volume for each frame size is factory-specified to ensure the worm is adequately submerged at rest yet does not over-fill the housing, which would create churning losses. This balance is one reason EP-WPA <strong>single speed reducer<\/strong> units run cooler and more efficiently than generic replacement reducers on the market.<\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; text-align: center; margin: 24px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: inline-block;\" src=\"https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/07\/superiortransmissioninc-factory-worm-gearbox2.webp\" alt=\"worm gear speed reducer working principle\" title=\"\"><\/div>\n<\/div>\n<p><!-- Materials --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 32px; box-sizing: border-box;\">\n<h2 style=\"color: #1a3a6b; border-bottom: 2px solid #2a5caa; padding-bottom: 6px;\">Materials &amp; Construction Quality<\/h2>\n<p>Material selection in the EP-WPA <strong>single speed reducer<\/strong> directly governs service life, load capacity, and thermal performance. The housing is precision cast from high-grade grey cast iron, chosen for its excellent vibration damping, dimensional stability under fluctuating thermal cycles, and machinability. For demanding applications requiring elevated structural integrity, ductile iron housing is available on select frame sizes, providing significantly improved impact and shock load resistance without increasing housing weight proportionally.<\/p>\n<p>The worm shaft is manufactured from 20CrMnTi alloy steel, carburized and case-hardened to achieve a surface hardness typically in the HRC 58\u201362 range while retaining a tough, ductile core. This combination resists pitting and scuffing fatigue that shortens service life in high-cycle or intermittent-shock loading conditions. The mating worm wheel is produced from centrifugal-cast phosphor bronze (CuSn10P), a material selected specifically for its low friction coefficient against hardened steel, excellent conformability under running-in loads, and thermal conductivity \u2014 all critical in a <strong>single speed reducer<\/strong> where sliding contact generates continuous heat at the mesh interface.<\/p>\n<p>Bearing positions use deep groove ball bearings or taper roller bearings (depending on frame size and load direction) selected to handle the combined radial and axial thrust loads inherent in worm drive geometry. Output shaft sealing is achieved with lip-type radial shaft seals rated for continuous service in oil splash environments, maintaining leak-free operation across the full temperature range typical of industrial <strong>single speed reducer<\/strong> applications.<\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; text-align: center; margin: 24px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: inline-block;\" src=\"https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/07\/superiortransmissioninc-factory-Rolling-Machining-of-Cylinder-Bore.webp\" alt=\"precision machining single speed reducer components\" title=\"\"><\/div>\n<\/div>\n<p><!-- Application Scenarios --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 32px; box-sizing: border-box;\">\n<h2 style=\"color: #1a3a6b; border-bottom: 2px solid #2a5caa; padding-bottom: 6px;\">Application Scenarios<\/h2>\n<p>The EP-WPA <strong>single speed reducer<\/strong> is designed to fit directly into a wide range of power transmission layouts where right-angle shaft routing, moderate-to-high gear ratios, and compact envelope are required. Below are the primary application segments where this series performs reliably.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 16px; width: 100%; max-width: 100%; min-width: 100%; box-sizing: border-box; margin-top: 16px;\">\n<div style=\"flex: 1 1 calc(33.33% - 16px); min-width: 220px; background: #fff; border: 1px solid #d0daea; border-radius: 8px; padding: 16px 18px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 8px 0;\">Conveyor &amp; Material Handling<\/h3>\n<p style=\"margin: 0;\">Belt conveyors, roller conveyors, and chain-driven transfer systems in warehousing, distribution, and manufacturing plants rely on the stable low-speed, high-torque output of a <strong>single speed reducer<\/strong>. The self-locking tendency at higher ratios adds a secondary safety benefit when loaded conveyors must hold position during emergency stops.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(33.33% - 16px); min-width: 220px; background: #fff; border: 1px solid #d0daea; border-radius: 8px; padding: 16px 18px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 8px 0;\">Packaging Machinery<\/h3>\n<p style=\"margin: 0;\">Filling, capping, labeling, and wrapping equipment depends on precise, repeatable output speeds with minimal backlash and vibration. The smooth meshing characteristics of the WPA <strong>single speed reducer<\/strong> translate directly into product quality by eliminating jitter in indexing and positioning mechanisms common in packaging lines.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(33.33% - 16px); min-width: 220px; background: #fff; border: 1px solid #d0daea; border-radius: 8px; padding: 16px 18px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 8px 0;\">Food &amp; Beverage Processing<\/h3>\n<p style=\"margin: 0;\">Mixer drives, auger feeders, and agitator shafts in food processing require sealed, hygienic, and corrosion-aware gearbox designs. EP-WPA <strong>single speed reducer<\/strong> units with food-grade lubricant fill can be specified for applications where incidental lubricant contact with product is a regulatory concern \u2014 common in Australian, UK, and EU food plant environments.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(33.33% - 16px); min-width: 220px; background: #fff; border: 1px solid #d0daea; border-radius: 8px; padding: 16px 18px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 8px 0;\">Agricultural Equipment<\/h3>\n<p style=\"margin: 0;\">Grain auger drives, seeder metering mechanisms, and irrigation pivot gearboxes frequently use worm gear reducers due to their ability to deliver large output torque from small input motors in space-constrained machinery frames. A durable <strong>single speed reducer<\/strong> handles the cyclic and intermittent loading profiles typical of field equipment reliably across seasonal operating cycles.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(33.33% - 16px); min-width: 220px; background: #fff; border: 1px solid #d0daea; border-radius: 8px; padding: 16px 18px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 8px 0;\">Gate &amp; Door Actuators<\/h3>\n<p style=\"margin: 0;\">Industrial gate drives, overhead door openers, and barrier systems use the inherent self-locking property of high-ratio worm pairs to hold position without braking power. A <strong>single speed gear reducer<\/strong> in this application eliminates the need for a separate holding brake. Utilizing a <strong>single speed reducer<\/strong> reduces system cost and potential failure points.<\/p>\n<\/div>\n<div style=\"flex: 1 1 calc(33.33% - 16px); min-width: 220px; background: #fff; border: 1px solid #d0daea; border-radius: 8px; padding: 16px 18px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 8px 0;\">Textile &amp; Printing Machinery<\/h3>\n<p style=\"margin: 0;\">Warp beam drives, fabric tensioning rolls, and printing cylinder drives require ultra-smooth torque delivery at carefully controlled output speeds. The low-noise, low-vibration characteristics of the EP-WPA <strong>single speed reducer<\/strong> make it a preferred choice in textile mills and printing facilities where mechanical noise contributes directly to operator fatigue and product consistency issues.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- About Us --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #f4f7fb; border-radius: 8px; padding: 24px 28px; margin-bottom: 32px; box-sizing: border-box;\">\n<h2 style=\"color: #1a3a6b; border-bottom: 2px solid #2a5caa; padding-bottom: 6px;\">About the Manufacturer<\/h2>\n<p>With more than a decade of focused experience in mechanical power transmission, our engineering and production team has built deep expertise across the full spectrum of industrial drive components. Our product range spans agricultural gearboxes, <strong>single speed reducer<\/strong> units, planetary gear drives, power take-off shafts, hydraulic cylinders, gears, chains, and motors \u2014 all developed and produced within our own manufacturing facility. This breadth of in-house capability means we can support OEM and system integrators with matched component sets rather than isolated products.<\/p>\n<p>Our facility holds ISO 9001:2015 certification, and quality control runs from incoming raw material verification through gear profile inspection, assembly torque checks, and final oil-fill testing before dispatch. Every <strong>single speed reducer<\/strong> is fully tested to guarantee performance. We produce a wide range of standard and non-standard industrial and agricultural gearboxes and assemblies using materials including ductile iron, cast iron, cast steel, precision cast steel, and cast aluminum. Gears, sprockets, worm gears, pulleys, worms, shafts, and other precision mechanical components are also manufactured in-house, allowing us to maintain tolerance and finish quality across mating parts.<\/p>\n<h3 style=\"color: #1a3a6b; margin-top: 24px; text-align: center;\">Workshop<\/h3>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; box-sizing: border-box;\">\n<div style=\"display: flex; flex-wrap: nowrap; gap: 12px; min-width: 700px;\"><img decoding=\"async\" style=\"width: 25%; min-width: 160px; height: 130px; object-fit: cover; border-radius: 6px; flex-shrink: 0;\" src=\"https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/07\/superiortransmissioninc-factory-Workshop.webp\" alt=\"worm gearbox manufacturing workshop\" title=\"\"><br \/>\n<img decoding=\"async\" style=\"width: 25%; min-width: 160px; height: 130px; object-fit: cover; border-radius: 6px; flex-shrink: 0;\" src=\"https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/07\/superiortransmissioninc-factory-Drilling-and-Milling-Composite-Machining-Center.webp\" alt=\"drilling and milling machining center\" title=\"\"><br \/>\n<img decoding=\"async\" style=\"width: 25%; min-width: 160px; height: 130px; object-fit: cover; border-radius: 6px; flex-shrink: 0;\" src=\"https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/07\/superiortransmissioninc-factory1.webp\" alt=\"speed reducer factory production\" title=\"\"><br \/>\n<img decoding=\"async\" style=\"width: 25%; min-width: 160px; height: 130px; object-fit: cover; border-radius: 6px; flex-shrink: 0;\" src=\"https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/07\/superiortransmissioninc-factory2.webp\" alt=\"worm reducer assembly line\" title=\"\"><\/div>\n<\/div>\n<\/div>\n<p><!-- Related Products --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 32px; box-sizing: border-box;\">\n<h2 style=\"color: #1a3a6b; border-bottom: 2px solid #2a5caa; padding-bottom: 6px;\">Related Products<\/h2>\n<p>The EP-WPA <strong>single speed reducer<\/strong> is designed for seamless integration with matched drive components from our catalogue. Pairing it with the right motor or a compatible gearbox from our full range simplifies procurement and ensures optimized system performance from a single supply source.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 20px; width: 100%; max-width: 100%; min-width: 100%; box-sizing: border-box; margin-top: 16px;\">\n<div style=\"flex: 1 1 calc(50% - 20px); min-width: 240px; background: #fff; border: 1px solid #d0daea; border-radius: 8px; padding: 20px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 10px 0;\"><a style=\"color: #2a5caa; text-decoration: none;\" href=\"https:\/\/superiortransmissioninc.com\/fa\/electric-motors\/\">Electric Motors<\/a><\/h3>\n<p>Our standard-frame <a style=\"color: #2a5caa;\" href=\"https:\/\/superiortransmissioninc.com\/fa\/electric-motors\/\">electric motors<\/a> are dimensionally matched to bolt directly onto the EP-WPA <strong>single speed reducer<\/strong> input flange, eliminating the need for intermediate adapters. Single-phase and three-phase models covering the torque range required by WPA sizes 40 through 250 are available, letting you specify a complete <strong>single speed reducer transmission<\/strong> package from a single source.<\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-top: 14px; text-align: center;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 6px;\" src=\"https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/07\/superiortransmissioninc-related-product-Electric-Motors.webp\" alt=\"electric motors for single speed reducer\" title=\"\"><\/div>\n<\/div>\n<div style=\"flex: 1 1 calc(50% - 20px); min-width: 240px; background: #fff; border: 1px solid #d0daea; border-radius: 8px; padding: 20px; box-sizing: border-box;\">\n<h3 style=\"color: #2a5caa; margin: 0 0 10px 0;\"><a style=\"color: #2a5caa; text-decoration: none;\" href=\"https:\/\/wormreducer.net\/\" target=\"_blank\" rel=\"noopener\">Full Worm Gearbox Range<\/a><\/h3>\n<p>Beyond the WPA <strong>single speed reducer<\/strong> model, our full<a style=\"color: #2a5caa;\" href=\"https:\/\/wormreducer.net\/\" target=\"_blank\" rel=\"noopener\"> worm gearbox <\/a>series includes NMRV, WPS, WPO, WPX, and other configuration types covering hollow shaft, flange mount, and motor-coupled designs. Whether you need an NMRV worm reducer, a premium worm reducer, or a high-torque worm gearbox for a demanding industrial application, our range provides complete coverage with consistent quality standards across all variants.<\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-top: 14px; text-align: center;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 6px;\" src=\"https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/07\/superiortransmissioninc-related-product-worm-reducer.webp\" alt=\"worm gearbox full range\" title=\"\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- FAQ --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 32px; box-sizing: border-box;\">\n<h2 style=\"color: #1a3a6b; border-bottom: 2px solid #2a5caa; padding-bottom: 6px;\">Frequently Asked Questions<\/h2>\n<div style=\"border: 1px solid #d0daea; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\">\n<details open=\"open\">\n<summary style=\"background: #f4f7fb; padding: 14px 18px; cursor: pointer; font-weight: bold; color: #1a3a6b; list-style: none;\">Q1. What is a single speed gear reducer and how does it differ from a multi-stage gearbox used in heavy industrial conveyor drives?<\/summary>\n<div style=\"padding: 14px 18px; background: #fff;\">\n<p style=\"margin: 0;\">A reduction gear achieves the target output speed in one gear mesh stage \u2014 in the case of a worm type, through a single worm-and-wheel pair. Multi-stage gearboxes cascade two or more meshes in series to reach very high ratios. The advantage of a <strong>single stage speed reducer<\/strong> is its smaller physical footprint compared to a standard multi-stage gearbox, while keeping all the core attributes of a rugged <strong>single speed reducer<\/strong>. Multi-stage designs are better suited to ratios beyond 1\/60 where power efficiency across multiple meshes is a design priority.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<div style=\"border: 1px solid #d0daea; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\">\n<details open=\"open\">\n<summary style=\"background: #f4f7fb; padding: 14px 18px; cursor: pointer; font-weight: bold; color: #1a3a6b; list-style: none;\">Q2. Which gear ratio in the EP-WPA series is best for a slow-speed packaging line motor drive in a UK food manufacturing facility?<\/summary>\n<div style=\"padding: 14px 18px; background: #fff;\">\n<p style=\"margin: 0;\">For a packaging line requiring a very low output speed with high output torque from a standard 4-pole motor (approximately 1400 rpm input), ratios in the 1\/40 to 1\/60 range \u2014 available in WPA sizes 147 through 175 \u2014 are typically the right fit. The 1\/50 ratio on the WPA 155 is particularly popular in UK packaging OEM applications because it delivers a stable 28 rpm output and is compact enough for standard machine frame integration.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<div style=\"border: 1px solid #d0daea; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\">\n<details open=\"open\">\n<summary style=\"background: #f4f7fb; padding: 14px 18px; cursor: pointer; font-weight: bold; color: #1a3a6b; list-style: none;\">Q3. How do I properly install and orient a WPA single speed reducer on a horizontal motor shaft for an Australian agricultural conveyor?<\/summary>\n<div style=\"padding: 14px 18px; background: #fff;\">\n<p style=\"margin: 0;\">Start by confirming your shaft direction requirement matches one of the five <strong>single speed reducer<\/strong> options (A through E). For horizontal motor input and horizontal output in the same plane, orientation A is standard. Ensure the oil fill level plug is on the correct side for the chosen mounting position \u2014 the WPA housing is designed so that correct orientation maintains the oil bath at the worm mesh point. Torque arm or foot-mount bolting should use M-series fasteners to the specified tightening torque for the frame size. Refer to the shaft key dimensions (W\u00d7Y) in the specification table when machining the motor coupling.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<div style=\"border: 1px solid #d0daea; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\">\n<details open=\"open\">\n<summary style=\"background: #f4f7fb; padding: 14px 18px; cursor: pointer; font-weight: bold; color: #1a3a6b; list-style: none;\">Q4. What are the main disadvantages of a single speed reducer compared to helical gear reducers in high-duty-cycle industrial applications?<\/summary>\n<div style=\"padding: 14px 18px; background: #fff;\">\n<p style=\"margin: 0;\">The primary disadvantage of a <strong>single speed reducer<\/strong> is lower mechanical efficiency relative to helical or spur gear types, particularly at higher ratios where the worm lead angle is shallow. Efficiency in the 1\/40\u20131\/60 range typically falls in the 60\u201375% band, compared to 95%+ for a single-stage helical gear. This means more input power is converted to heat rather than useful output torque. For continuous-duty, high-power applications this can be a significant running cost factor. However, for intermittent or moderate-duty cycles, the compactness and self-locking benefits of a <strong>single speed reducer<\/strong> often outweigh the efficiency difference.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<div style=\"border: 1px solid #d0daea; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\">\n<details open=\"open\">\n<summary style=\"background: #f4f7fb; padding: 14px 18px; cursor: pointer; font-weight: bold; color: #1a3a6b; list-style: none;\">Q5. Can the EP-WPA single speed reducer be customized with a hollow output shaft or flange mount for a Canadian material handling OEM build?<\/summary>\n<div style=\"padding: 14px 18px; background: #fff;\">\n<p style=\"margin: 0;\">Yes. As a direct manufacturing source, we support customized <strong>single speed reducer<\/strong> configurations including hollow output bore, extended shafts, flange-mounted output faces, and modified mounting foot patterns. For Canadian OEM material handling builds, common customizations include metric-to-inch shaft bore conversion and modified keyway dimensions to suit local shaft standards. Contact our engineering team with your duty cycle data, required output torque, and spatial constraints, and we will specify the appropriate WPA <strong>single speed reducer<\/strong> frame size and configuration.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/div>\n<\/div>\n<p style=\"text-align: right;\">Editor: PXY<\/p>","protected":false},"excerpt":{"rendered":"<p>The EP-WPA series is a single stage right-angle worm-gear speed reducer designed for applications that require smooth torque transmission, compact installation space, and consistent performance over extended duty cycles. Available in frame sizes from 40 to 250 mm center distance, with oil capacities ranging from 0.13 L to 9.0 L, this series provides system designers with a highly scalable single speed gear reducer platform suitable for conveyors, packaging lines, material handling systems, and general industrial machinery.<\/p>\n<p>Each unit in the WPA lineup follows a standard right-angle input\/output shaft configuration, with multiple shaft orientation options (A through E) allowing integration flexibility across different machine layouts. The worm and worm wheel pairing delivers self-locking characteristics at low ratios, which adds a passive safety benefit in vertical-drive or hold-load applications. With gear ratios spanning 1\/5 through 1\/60, the EP-WPA covers a practical speed reduction range suited to the majority of motor-driven industrial setups.<\/p>","protected":false},"featured_media":502,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[29],"product_tag":[],"class_list":["post-500","product","type-product","status-publish","has-post-thumbnail","product_cat-single-speed-reducer","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/superiortransmissioninc.com\/fa\/wp-json\/wp\/v2\/product\/500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/superiortransmissioninc.com\/fa\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/superiortransmissioninc.com\/fa\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/fa\/wp-json\/wp\/v2\/media\/502"}],"wp:attachment":[{"href":"https:\/\/superiortransmissioninc.com\/fa\/wp-json\/wp\/v2\/media?parent=500"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/fa\/wp-json\/wp\/v2\/product_brand?post=500"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/fa\/wp-json\/wp\/v2\/product_cat?post=500"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/fa\/wp-json\/wp\/v2\/product_tag?post=500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}