{"id":820,"date":"2026-08-10T06:10:16","date_gmt":"2026-08-10T06:10:16","guid":{"rendered":"https:\/\/superiortransmissioninc.com\/?post_type=product&p=820"},"modified":"2026-08-10T06:50:56","modified_gmt":"2026-08-10T06:50:56","slug":"ep-4-kg-340-kg-wpw-universal-speed-reducer","status":"publish","type":"product","link":"https:\/\/superiortransmissioninc.com\/nl\/product\/ep-4-kg-340-kg-wpw-universal-speed-reducer\/","title":{"rendered":"EP-4 kg-340 kg WPW Universele Snelheidsreductor"},"content":{"rendered":"
\n

EP-WPW Series Universal Speed Reducer<\/p>\n

EP-WPW Universal Speed Reducer<\/h2>\n

Heavy-duty worm gear speed reducer engineered for continuous industrial duty \u2014 available from 4 kg to 340 kg, reduction ratios 1\/5 to 1\/60, sizes 40\u2013250.<\/p>\n

Universele snelheidsreductor<\/a><\/div>\n

 <\/p>\n

EP-WPW Universal Speed Reducer Technical Specifications<\/h2>\n

Dimensional data (mm) for the standard WPW universal speed reducer range. All measurements conform to the engineering drawing supplied with each unit. Shaft sizes and mounting dimensions are consistent across the production range for drop-in replacement universal speed reducer installations.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Maat<\/th>\nVerhouding<\/th>\nA<\/th>\nAB<\/th>\nB<\/th>\nBB<\/th>\nAC<\/th>\nBC<\/th>\nAD<\/th>\nBD<\/th>\nCC<\/th>\nHL<\/th>\nH<\/th>\nZ\u00d7L<\/th>\nHS<\/th>\nU<\/th>\nT\u00d7V (Input)<\/th>\nLS<\/th>\nS<\/th>\nW\u00d7Y (Output)<\/th>\nWeight (kg)<\/th>\n<\/tr>\n<\/thead>\n
40<\/td>\n1\/5\u20131\/60<\/td>\n143<\/td>\n87<\/td>\n114<\/td>\n74<\/td>\n95<\/td>\n61<\/td>\n78<\/td>\n42<\/td>\n40<\/td>\n35<\/td>\n125<\/td>\nM6\u00d712<\/td>\n25<\/td>\n12<\/td>\n4\u00d72,5<\/td>\n28<\/td>\n14<\/td>\n5\u00d73<\/td>\n4<\/td>\n<\/tr>\n
50<\/td>\n1\/5\u20131\/60<\/td>\n175<\/td>\n108<\/td>\n150<\/td>\n97<\/td>\n111<\/td>\n68<\/td>\n85<\/td>\n50<\/td>\n50<\/td>\n35<\/td>\n150<\/td>\nM6\u00d718<\/td>\n30<\/td>\n12<\/td>\n4\u00d72,5<\/td>\n40<\/td>\n17<\/td>\n5\u00d73<\/td>\n6.5<\/td>\n<\/tr>\n
60<\/td>\n1\/5\u20131\/60<\/td>\n198<\/td>\n120<\/td>\n168<\/td>\n112<\/td>\n127<\/td>\n76<\/td>\n105<\/td>\n55<\/td>\n60<\/td>\n42<\/td>\n177<\/td>\nM8\u00d720<\/td>\n40<\/td>\n15<\/td>\n5\u00d73<\/td>\n50<\/td>\n22<\/td>\n7\u00d74<\/td>\n9<\/td>\n<\/tr>\n
70<\/td>\n1\/5\u20131\/60<\/td>\n231<\/td>\n140<\/td>\n194<\/td>\n131<\/td>\n152<\/td>\n86<\/td>\n125<\/td>\n65<\/td>\n70<\/td>\n55<\/td>\n215<\/td>\nM10\u00d725<\/td>\n40<\/td>\n18<\/td>\n5\u00d73<\/td>\n60<\/td>\n28<\/td>\n7\u00d74<\/td>\n13<\/td>\n<\/tr>\n
80<\/td>\n1\/5\u20131\/60<\/td>\n261<\/td>\n160<\/td>\n214<\/td>\n142<\/td>\n169<\/td>\n102<\/td>\n140<\/td>\n70<\/td>\n80<\/td>\n65<\/td>\n250<\/td>\nM12\u00d728<\/td>\n50<\/td>\n22<\/td>\n7\u00d74<\/td>\n65<\/td>\n32<\/td>\n10\u00d74,5<\/td>\n21<\/td>\n<\/tr>\n
100<\/td>\n1\/5\u20131\/60<\/td>\n322<\/td>\n190<\/td>\n254<\/td>\n169<\/td>\n216<\/td>\n117<\/td>\n180<\/td>\n90<\/td>\n100<\/td>\n80<\/td>\n310<\/td>\nM12\u00d730<\/td>\n50<\/td>\n25<\/td>\n7\u00d74<\/td>\n75<\/td>\n38<\/td>\n10\u00d74,5<\/td>\n34<\/td>\n<\/tr>\n
120<\/td>\n1\/5\u20131\/60<\/td>\n371<\/td>\n219<\/td>\n282<\/td>\n190<\/td>\n256<\/td>\n144<\/td>\n220<\/td>\n100<\/td>\n120<\/td>\n95<\/td>\n370<\/td>\nM14\u00d732<\/td>\n65<\/td>\n30<\/td>\n7\u00d74<\/td>\n85<\/td>\n45<\/td>\n12\u00d74,5<\/td>\n51<\/td>\n<\/tr>\n
135<\/td>\n1\/5\u20131\/60<\/td>\n422<\/td>\n249<\/td>\n317<\/td>\n210<\/td>\n296<\/td>\n147<\/td>\n260<\/td>\n110<\/td>\n135<\/td>\n105<\/td>\n425<\/td>\nM16\u00d735<\/td>\n75<\/td>\n35<\/td>\n10\u00d74,5<\/td>\n95<\/td>\n55<\/td>\n16\u00d76<\/td>\n78<\/td>\n<\/tr>\n
155<\/td>\n1\/5\u20131\/60<\/td>\n497<\/td>\n295<\/td>\n382<\/td>\n252<\/td>\n345<\/td>\n185<\/td>\n280<\/td>\n120<\/td>\n155<\/td>\n103<\/td>\n461<\/td>\nM16\u00d735<\/td>\n85<\/td>\n40<\/td>\n12\u00d75<\/td>\n110<\/td>\n60<\/td>\n18\u00d77<\/td>\n102<\/td>\n<\/tr>\n
175<\/td>\n1\/5\u20131\/60<\/td>\n534<\/td>\n314<\/td>\n372<\/td>\n255<\/td>\n374<\/td>\n192<\/td>\n320<\/td>\n140<\/td>\n175<\/td>\n123<\/td>\n521<\/td>\nM16\u00d735<\/td>\n85<\/td>\n45<\/td>\n14\u00d75,5<\/td>\n110<\/td>\n65<\/td>\n18\u00d77<\/td>\n142<\/td>\n<\/tr>\n
200<\/td>\n1\/5\u20131\/60<\/td>\n580<\/td>\n342<\/td>\n456<\/td>\n319<\/td>\n412<\/td>\n230<\/td>\n360<\/td>\n150<\/td>\n200<\/td>\n130<\/td>\n575<\/td>\nM20\u00d736<\/td>\n95<\/td>\n50<\/td>\n14\u00d75,5<\/td>\n125<\/td>\n70<\/td>\n20\u00d77,5<\/td>\n202<\/td>\n<\/tr>\n
250<\/td>\n1\/5\u20131\/60<\/td>\n705<\/td>\n420<\/td>\n552<\/td>\n385<\/td>\n500<\/td>\n285<\/td>\n420<\/td>\n190<\/td>\n250<\/td>\n150<\/td>\n700<\/td>\nM24\u00d742<\/td>\n110<\/td>\n60<\/td>\n18\u00d77<\/td>\n155<\/td>\n90<\/td>\n25\u00d79<\/td>\n340<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

All dimensions in millimetres (mm). Weight listed is approximate unit shipping weight. Tolerances per GB\/T standard.<\/p>\n

\"superiortransmissioninc-products-EP-4<\/p>\n

\n

Five Core Advantages of the EP-WPW Universal Speed Reducer<\/h2>\n

Why engineers across food processing, packaging, construction, and material handling continue to specify the WPW series universal speed reducer for their most demanding drive applications.<\/p>\n

\n
\n

\u2460 Wide Ratio Range \u2014 1\/5 to 1\/60<\/h3>\n

The EP-WPW universal speed reducer ships in six standard reduction ratios (1\/5, 1\/10, 1\/15, 1\/20, 1\/25, 1\/30, 1\/40, 1\/50, 1\/60), covering a far broader speed-control window than conventional NMRV worm reducers. Whether you are dialing down a 1450 RPM motor output to a slow conveyor crawl or simply matching a mid-range process speed, one product family handles the full spectrum \u2014 eliminating the cost and lead time of sourcing multiple gearbox types.<\/p>\n<\/div>\n

\n

\u2461 Five Shaft-Direction Configurations (A\u2013E)<\/h3>\n

Unlike single-configuration worm drive reducers that force awkward motor or machinery repositioning, the WPW series universal speed reducer offers five shaft-direction options (configurations A, B, C, D, and E). Input and output shafts can be oriented to match almost any spatial constraint in a machine frame, conveyor structure, or mixing system \u2014 significantly reducing the engineering re-work that typically accompanies a drive-train integration project.<\/p>\n<\/div>\n

\n

\u2462 Cast Iron Housing for Long-Term Durability<\/h3>\n

The housing is manufactured from high-grade cast iron \u2014 the same material standard used in heavy duty worm drive gearboxes for decades \u2014 delivering superior vibration damping, excellent heat dissipation, and resistance to shock loads that would crack lighter aluminum housings. The robust casting also contributes to precise bearing alignment retention over tens of thousands of operating hours, directly translating into lower maintenance frequency and predictable service intervals for plant engineers.<\/p>\n<\/div>\n

\n

\u2463 Phosphor Bronze Worm Wheel \u2014 High Torque, Low Wear<\/h3>\n

The mating worm wheel is cut from phosphor bronze alloy, chosen specifically for its excellent compatibility with the hardened alloy steel worm shaft. This pairing produces low friction coefficients, quiet meshing, and high torque worm gearbox output capacity relative to size. Over time, a phosphor bronze wheel self-burnishes against the worm, reducing running noise further \u2014 a characteristic that makes the WPW worm gear speed reducer especially popular in noise-sensitive food processing and pharmaceutical environments.<\/p>\n<\/div>\n

\n

\u2464 ISO 9001:2015 Production & Dimensional Interchangeability<\/h3>\n

Every WPW universal speed worm reducer is manufactured under ISO 9001:2015 quality management, with critical dimensions conforming to standard worm reducer gearbox mounting footprints. This makes the EP-WPW universal speed reducer a direct replacement universal speed reducer for many common drive configurations \u2014 reducing downtime when replacing aging equipment.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

What Is the EP-WPW Universal Speed Reducer?<\/h2>\n

The EP-WPW universal speed reducer is a flanged, foot-mounted universal speed worm reducer designed to accept a direct motor input and deliver a smooth, high-torque, low-speed output through a precision-cut worm gear pair. Available across fourteen frame sizes from 40 to 250, it handles unit weights from 4 kg to 340 kg and is adapted to drive applications where both torque multiplication and reliable self-locking behavior are required simultaneously. The design follows well-established worm gearbox engineering conventions while improving on them in key areas \u2014 higher-quality bearing selection, refined oil sealing, and tighter gear-mesh tolerances.<\/p>\n

Within the broader universal speed reducer category, the WPW series sits alongside the WP, WD, and WS families but distinguishes itself by offering multiple shaft-direction configurations within a single catalog range. This versatility makes it particularly valuable for OEM machine builders who serve multiple industries, as a single stocked product can serve different installations without modification.<\/p>\n<\/div>\n

\"EP-WPW<\/p>\n

\n

How Does a Worm Gear Reducer Work?<\/h2>\n

A worm gear speed reducer operates on a deceptively simple principle: a helically threaded worm shaft meshes at 90\u00b0 with a worm wheel (gear). As the worm rotates \u2014 driven by an electric motor \u2014 its threads push the wheel teeth forward in a controlled sliding action. Because the worm must complete one full revolution to advance the wheel by only one tooth pitch, even a single-start worm produces a significant speed reduction in a compact envelope. The gear worm reducer principle is therefore ideal when a large reduction ratio is needed without stacking multiple gear stages.<\/p>\n

In the EP-WPW universal speed reducer, the alloy steel worm is case-hardened and ground, while the phosphor bronze wheel is hobbed to mesh with it precisely. This material pairing keeps the coefficient of friction low enough to deliver acceptable thermal efficiency even at higher reduction ratios. The sliding contact between worm and wheel also provides inherent self-locking \u2014 when the worm stops rotating, reverse torque from the load cannot back-drive the input shaft.<\/p>\n<\/div>\n

\"worm<\/p>\n

<\/p>\n

\n

Universal Speed Reducer Materials & Build Quality<\/h2>\n
\n
\n

Housing<\/h3>\n

Grey cast iron (HT200 grade), precision machined on all mating faces. The casting provides natural vibration attenuation and excellent thermal mass. Finished with a two-coat protective paint system \u2014 primer phosphate wash followed by polyurethane topcoat in standard industrial green. Custom colours including white and brown are available for specific sectors.<\/p>\n<\/div>\n

\n

Wormas<\/h3>\n

20CrMnTi alloy steel, carburised and case-hardened to HRC 58\u201362 on the thread flanks, then precision-ground to Ra 0.8 \u03bcm surface finish. This ensures a consistently smooth sliding contact surface that extends phosphor bronze wheel service life significantly compared to induction-hardened alternatives seen in budget worm drive reducer designs.<\/p>\n<\/div>\n

\n

Wormwiel<\/h3>\n

ZCuSn10Pb1 (tin-phosphor bronze), centrifugal-cast for dense, void-free grain structure, then hobbed to tight DIN 3974 tolerances. The phosphor bronze material is selected for its inherent lubricity, thermal conductivity, and compatibility with worm shaft hardened steel \u2014 reducing galling risk even during momentary lubrication starvation events.<\/p>\n<\/div>\n

\n

Lagers en afdichtingen<\/h3>\n

Tapered roller bearings on the output shaft (sizes 80 and above) and deep-groove ball bearings on the input \u2014 both sourced to C3 clearance class for reliable thermal expansion tolerance. NBR double-lip oil seals on all shaft exits, with a labyrinth dust shield on exterior-facing shafts where specified. These components are replaceable standard parts available worldwide.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

Universal Speed Reducer Industry Applications<\/h2>\n

The EP-WPW worm gear reducer gearbox is in active service across these sectors globally \u2014 from agricultural machinery OEMs sourcing a new universal speed worm reducer, to plant engineers specifying a replacement universal speed reducer for an aging drive system.<\/p>\n

\n
\n

Food & Beverage Processing<\/h3>\n

Conveyor belt drives, mixers, bottling lines, and filling equipment benefit from the WPW’s quiet operation, self-locking output, and food-compatible white coat option. Large universal speed worm reducer frames (size 155\u2013250) handle the continuous heavy torque demands of dough kneaders and industrial blenders in bakery and dairy facilities across Europe and North America.<\/p>\n<\/div>\n

\n

Verpakkingsmachines<\/h3>\n

Carton erectors, pallet wrapping systems, and labelling machines demand compact gearboxes that deliver precise low-speed output without backlash drift over shift-after-shift operation. The electrical motors universal speed worm reducer pairing \u2014 WPW combined with a matched IEC-frame motor \u2014 is a popular size universal speed worm reducer solution for mid-range packaging OEMs building CE-marked machinery for the EU market.<\/p>\n<\/div>\n

\n

Agricultural Equipment<\/h3>\n

Grain augers, seed metering systems, irrigation drives, and harvester auxiliary functions make frequent use of the worm speed reducer gear box configuration. The WPW’s robust cast housing withstands dusty, high-humidity field environments that would quickly degrade lighter enclosed gearboxes. Australian and Canadian prairie farming operations have found the universal speed worm reducer nearby advantage of a stocked local distributor essential for minimal downtime.<\/p>\n<\/div>\n

\n

Construction & Material Handling<\/h3>\n

Concrete mixer drums, aggregate conveyors, inclined belt feeders, and gate actuators demand both high torque and reliable position-holding. The self-locking characteristic of the worm drive reducer eliminates the need for a separate holding brake in most gate and valve actuator installations. Heavy duty worm drive gearbox sizes 175 to 250 are regularly deployed in port materials handling and quarry screening plant operations in Brazil and Colombia.<\/p>\n<\/div>\n

\n

HVAC & Water Treatment<\/h3>\n

Cooling tower fans, aerator drives, and sluice gate mechanisms operate continuously at moderate loads \u2014 exactly where a premium worm reducer gearbox earns its keep through low maintenance requirements and multi-year service life. The IP65-rated sealing option makes the WPW universal speed reducer suitable for outdoor water treatment installations in the Netherlands and UK where seasonal condensation and rainfall are persistent concerns.<\/p>\n<\/div>\n<\/div>\n

 <\/p>\n<\/div>\n

<\/p>\n

\n

Need a Universal Speed Reducer \/ Worm Gearbox with Specialist Guidance?<\/h2>\n

Our engineering team supports selection for size, ratio, shaft configuration, and motor pairing \u2014 including large universal speed worm reducer and replacement universal speed reducer assessments for existing installations.<\/p>\n<\/div>\n

<\/p>\n

\n

About Us – Worm Gear Reducer Manufacturer<\/h2>\n

With over a decade of hands-on mechanical engineering and precision manufacturing behind us, our facility is built around one principle: industrial power transmission equipment should be engineered to outlast the machine it drives. Our production scope covers agricultural gearboxes, worm gear reducers, planetary gear drives, power take-off shafts, hydraulic cylinders, gears, chains, and motors \u2014 all produced under the same roof to maintain strict quality chain-of-custody from raw material to finished unit.<\/p>\n

The facility holds ISO 9001:2015 certification, and our quality management procedures are applied across every production stage \u2014 from incoming material inspection of the cast iron blanks and phosphor bronze billets to final dimensional verification and run-in testing before dispatch. We also design and manufacture a wide range of non-standard mechanical components: ductile iron housings, cast steel gear blanks, precision-cast aluminum covers, sprockets, pulleys, worm shafts, and custom transmission assemblies tailored to customer-specific shaft layouts and load requirements.<\/p>\n

Workshop<\/h3>\n
\n
\"werkplaats
\n\"CNC
\n\"gearbox
\n\"industrial<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

Compatible Products & System Solutions<\/h2>\n

The EP-WPW universal speed reducer is designed for direct pairing with standard IEC motor frames and integrates seamlessly into complete drive packages.<\/p>\n

\n
\n

Elektromotoren<\/a><\/h3>\n

Our IEC-frame three-phase and single-phase electric motors are dimensionally matched to the WPW worm gear reducer input shaft \u2014 enabling direct flange coupling without intermediate adaptors. Motor frames from 63 to 280 are stocked to cover the full WPW size 40 to 250 power range.<\/p>\n

\"electric<\/p>\n<\/div>\n

\n

Wormwieloverbrenging\u00a0<\/a><\/h3>\n

Beyond the WPW series, we manufacture the complete worm reducer kit lineup \u2014 including NMRV, WPA, WPS, and WD series gearboxes \u2014 covering centre distances from 25 mm to 400 mm and output torques from fractional to several thousand Newton-metres.<\/p>\n

\"worm<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

Veelgestelde vragen<\/h2>\n

Common questions from engineers, procurement managers, and maintenance teams evaluating the EP-WPW worm gear speed reducer for new and replacement installations.<\/p>\n

<\/p>\n

\nWhich reduction ratio should I choose for a conveyor drive application in a food processing plant in the UK?<\/summary>\n
\n

For most gravity-assisted flat belt conveyors running at 15\u201330 m\/min from a 4-pole (1450 RPM) motor, a 1\/20 or 1\/25 ratio WPW universal speed reducer is the most practical starting point. If your process requires a slower infeed or accumulation zone \u2014 say, below 10 m\/min \u2014 move to the 1\/40 or 1\/50 ratio.<\/p>\n<\/div>\n<\/details>\n

\nHow do worm gears reduce speed, and what makes them self-locking compared to helical gear reducers?<\/summary>\n
\n

A worm gear reduces speed by converting the rotational motion of a helically threaded worm shaft into the slower rotation of a worm wheel at 90\u00b0. Because the worm threads can only push the wheel forward \u2014 the wheel cannot reverse-drive the worm due to high lead angle friction \u2014 the mechanism becomes self-locking when stationary. This is a physical property of the geometry, not a separate brake mechanism. Helical and spur gears, by contrast, can be back-driven because their tooth geometry allows force to act in both directions. The worm gear speed reducer is therefore the preferred choice for load-holding duties like hoists, gate actuators, and inclined conveyors where reversal under load would be dangerous.<\/p>\n<\/div>\n<\/details>\n

\nWhat is the best way to install a worm gear reducer for a horizontal mixer in an agricultural processing facility in Australia?<\/summary>\n
\n

For a horizontal shaft mixer, the most common installation is shaft configuration B or C \u2014 where both input and output shafts extend horizontally. Before fitting, verify the output shaft diameter and keyway dimensions against the mixer shaft coupling bore. Ensure the foot-mounting flange sits flat on the base plate with no twist or rocking, then torque the anchor bolts to the specified value in the drawing. Fill with ISO VG 220 gear oil to the level indicator window and run the gearbox unloaded for 30 minutes before applying full load. In dusty grain-handling environments, check the shaft seals at the 500-hour service interval and replace if any oil weeping is observed. Using a replacement universal speed reducer of the same frame size simplifies this process \u2014 all bolt holes and shaft positions are consistent across the WPW series.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

Redacteur: PXY<\/p>","protected":false},"excerpt":{"rendered":"

The EP-WPW series is a versatile universal speed reducer designed for broad industrial applications. Available in sizes ranging from 40 to 250, it offers reduction ratios from 1\/5 to 1\/60. The unit features a robust cast iron housing with flexible shaft direction options (A-E) to accommodate various installation layouts. Weighing between 4 kg and 340 kg, it supports diverse load requirements. Key specifications include input shafts up to M24x42 and output shafts up to 25×9 mm. This reducer ensures reliable torque transmission and precise speed control, making it an ideal solution for machinery requiring durable, adaptable power transmission in compact spaces.<\/p>","protected":false},"featured_media":821,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[34],"product_tag":[],"class_list":["post-820","product","type-product","status-publish","has-post-thumbnail","product_cat-universal-speed-reducer","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/superiortransmissioninc.com\/nl\/wp-json\/wp\/v2\/product\/820","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/superiortransmissioninc.com\/nl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/superiortransmissioninc.com\/nl\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/nl\/wp-json\/wp\/v2\/media\/821"}],"wp:attachment":[{"href":"https:\/\/superiortransmissioninc.com\/nl\/wp-json\/wp\/v2\/media?parent=820"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/nl\/wp-json\/wp\/v2\/product_brand?post=820"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/nl\/wp-json\/wp\/v2\/product_cat?post=820"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/nl\/wp-json\/wp\/v2\/product_tag?post=820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}