Material & Heat Treatment<\/strong> \u2014 sets surface hardness and core toughness<\/li>\n<\/ul>\n[\/et_pb_text][et_pb_image src=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/worm-reducer-products-EP-Forging-Spur-Gears.webp” title_text=”worm reducer-products-EP-Forging Spur Gears” _builder_version=”4.20.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”About” _builder_version=”4.16″ global_colors_info=”{}”][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.20.4″ custom_margin=”|auto||auto|false|false” hover_enabled=”0″ global_colors_info=”{}” width=”90%” max_width=”100%” sticky_enabled=”0″][et_pb_column type=”1_2″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_image src=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/worm-reducer-products-EP-Forging-Spur-Gear-Part.webp” title_text=”worm reducer-products-EP-Forging Spur Gear Part” admin_label=”Image” _builder_version=”4.20.4″ max_height_tablet=”400px” max_height_phone=”” max_height_last_edited=”on|tablet” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″][\/et_pb_image][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_font_size=”16px” text_line_height=”1.8em” header_2_text_color=”#000000″ custom_margin=”||||false|false” hover_enabled=”0″ text_font_size_tablet=”14px” text_font_size_phone=”” text_font_size_last_edited=”on|phone” locked=”off” global_colors_info=”{}” border_width_all=”1px” border_width_top=”3px” custom_padding=”1%|1%|1%|1%|true|true” sticky_enabled=”0″]<\/p>\n
Carbon Steel (C45 \/ S45C)<\/h4>\n
Cost-effective general-purpose grade. Induction hardened to HRC 45\u201355. Ideal for medium-load industrial gearboxes and conveyor drives.<\/p>\n
[\/et_pb_text][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_font_size=”16px” text_line_height=”1.8em” header_2_text_color=”#000000″ custom_margin=”||||false|false” hover_enabled=”0″ text_font_size_tablet=”14px” text_font_size_phone=”” text_font_size_last_edited=”on|phone” locked=”off” global_colors_info=”{}” border_width_all=”1px” border_width_top=”3px” custom_padding=”1%|1%|1%|1%|true|true” sticky_enabled=”0″]<\/p>\n
Stainless Steel (304 \/ 316)<\/h4>\n
Corrosion-resistant for wet, chemical, or marine environments. Also chosen for applications where rust contamination is a hygiene concern. Moderate strength.<\/p>\n
[\/et_pb_text][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_font_size=”16px” text_line_height=”1.8em” header_2_text_color=”#000000″ custom_margin=”||||false|false” hover_enabled=”0″ text_font_size_tablet=”14px” text_font_size_phone=”” text_font_size_last_edited=”on|phone” locked=”off” global_colors_info=”{}” border_width_all=”1px” border_width_top=”3px” custom_padding=”1%|1%|1%|1%|true|true” sticky_enabled=”0″]<\/p>\n
Aluminum Alloy<\/h4>\n
Lightweight \u2014 reduces inertia in high-speed, low-torque drives. Common in motorsport, robotics, and aerospace sub-systems where mass is a critical specification parameter.<\/p>\n
[\/et_pb_text][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_font_size=”16px” text_line_height=”1.8em” header_2_text_color=”#000000″ custom_margin=”||||false|false” hover_enabled=”0″ text_font_size_tablet=”14px” text_font_size_phone=”” text_font_size_last_edited=”on|phone” locked=”off” global_colors_info=”{}” border_width_all=”1px” border_width_top=”3px” custom_padding=”1%|1%|1%|1%|true|true” sticky_enabled=”0″]<\/p>\n
Cast Iron (HT250 \/ QT450)<\/h4>\n
Vibration damping, good machinability, cost-effective for large low-speed gears. Suitable for industrial gearboxes operating in dirty, abrasive environments.<\/p>\n
[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_text _builder_version=”4.20.4″ header_2_font=”Cutive||||||||” header_2_text_color=”#000000″ header_2_font_size=”60px” hover_enabled=”0″ header_2_font_size_tablet=”60px” header_2_font_size_phone=”42px” header_2_font_size_last_edited=”on|phone” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n
Spur Gear Material Selection Guide<\/h2>\n
[\/et_pb_text][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_font_size=”16px” text_line_height=”1.8em” header_2_text_color=”#000000″ custom_margin=”||||false|false” hover_enabled=”0″ text_font_size_tablet=”14px” text_font_size_phone=”” text_font_size_last_edited=”on|phone” locked=”off” global_colors_info=”{}” border_width_all=”1px” border_width_top=”3px” custom_padding=”1%|1%|1%|1%|true|true” sticky_enabled=”0″]<\/p>\n
Alloy Steel (42CrMo \/ 20CrMnTi)<\/h4>\n
Highest strength and fatigue life. Case-hardened to HRC 58\u201362. Best for structural drives with shock loads: tractors, mining, construction equipment.<\/p>\n
[\/et_pb_text][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_font_size=”16px” text_line_height=”1.8em” header_2_text_color=”#000000″ custom_margin=”||||false|false” hover_enabled=”0″ text_font_size_tablet=”14px” text_font_size_phone=”” text_font_size_last_edited=”on|phone” locked=”off” global_colors_info=”{}” border_width_all=”1px” border_width_top=”3px” custom_padding=”1%|1%|1%|1%|true|true” sticky_enabled=”0″]<\/p>\n
POM (Acetal \/ Delrin)<\/h4>\n
Self-lubricating, low noise, corrosion-free. Friction coefficient 0.10\u20130.15 against steel. Best for automotive actuators, instrument drives, and food-contact applications.<\/p>\n
[\/et_pb_text][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_font_size=”16px” text_line_height=”1.8em” header_2_text_color=”#000000″ custom_margin=”||||false|false” hover_enabled=”0″ text_font_size_tablet=”14px” text_font_size_phone=”” text_font_size_last_edited=”on|phone” locked=”off” global_colors_info=”{}” border_width_all=”1px” border_width_top=”3px” custom_padding=”1%|1%|1%|1%|true|true” sticky_enabled=”0″]<\/p>\n
Brass (CuZn)<\/h4>\n
Non-magnetic, non-sparking, EMI-neutral. Selected for sensor-adjacent positions in automotive electronics and precision instruments. Good machinability for micro-module gears.<\/p>\n
[\/et_pb_text][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_font_size=”16px” text_line_height=”1.8em” header_2_text_color=”#000000″ custom_margin=”||||false|false” hover_enabled=”0″ text_font_size_tablet=”14px” text_font_size_phone=”” text_font_size_last_edited=”on|phone” locked=”off” global_colors_info=”{}” border_width_all=”1px” border_width_top=”3px” custom_padding=”1%|1%|1%|1%|true|true” sticky_enabled=”0″]<\/p>\n
Bronze<\/h4>\n
Excellent emergency running properties and low friction against steel shafts. Preferred where occasional loss of lubrication is possible without immediate catastrophic failure.<\/p>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”CTA” _builder_version=”4.16″ background_color=”#fee141″ overflow-x=”hidden” overflow-y=”hidden” custom_margin=”||||false|false” custom_padding=”8vw||||false|false” global_colors_info=”{}”][et_pb_row column_structure=”1_4,3_4″ make_equal=”on” _builder_version=”4.16″ global_colors_info=”{}”][et_pb_column type=”1_4″ _builder_version=”4.16″ global_colors_info=”{}”][\/et_pb_column][et_pb_column type=”3_4″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_image src=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/freelance-writer-22.png” title_text=”freelance-writer-22″ _builder_version=”4.16″ positioning=”absolute” horizontal_offset=”10vw” z_index=”0″ custom_margin=”|-12vw|||false|false” custom_margin_tablet=”-250px||80px||false|false” custom_margin_phone=”-170px||||false|false” custom_margin_last_edited=”off|desktop” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.20.4″ header_2_font=”Ubuntu|700|||||||” header_2_text_color=”#000000″ header_2_font_size=”80px” header_2_line_height=”1.2em” z_index=”0″ header_2_font_size_tablet=”40px” header_2_font_size_phone=”24px” header_2_font_size_last_edited=”on|phone” global_colors_info=”{}”]<\/p>\n
Standards Compliance<\/h2>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”3_5,2_5″ _builder_version=”4.16″ custom_padding=”0px|||||” global_colors_info=”{}”][et_pb_column type=”3_5″ _builder_version=”4.16″ custom_padding=”25px||25px||true|false” global_colors_info=”{}”][et_pb_image src=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/freelance-writer-15.png” title_text=”freelance-writer-15″ _builder_version=”4.16″ custom_margin=”|||-30vw|false|false” locked=”off” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”2_5″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_button button_url=”#contact” button_text=”Get a Free Quote” button_alignment=”right” _builder_version=”4.20.4″ custom_button=”on” button_text_size=”14px” button_text_color=”#000000″ button_bg_color=”#fee141″ button_border_color=”#000000″ button_border_radius=”0px” button_letter_spacing=”2px” button_font=”Ubuntu|700||on|||||” button_icon=”$||divi||400″ custom_padding=”15px|40px|15px|40px|true|true” box_shadow_style=”preset4″ box_shadow_color=”#000000″ locked=”off” global_colors_info=”{}”][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.16″ z_index=”1″ global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu|700|||||||” text_text_color=”#000000″ text_font_size=”32px” text_line_height=”1.5em” header_2_text_color=”#000000″ custom_margin=”||20px||false|false” hover_enabled=”0″ text_font_size_tablet=”” text_font_size_phone=”24px” text_font_size_last_edited=”on|phone” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n
Get a Free Spur Gear Quote<\/p>\n
[\/et_pb_text][et_pb_text _builder_version=”4.20.4″ _module_preset=”default” hover_enabled=”0″ sticky_enabled=”0″]<\/p>\n
Tell us your module, ratio, material, and application \u2014 we’ll respond with specifications, pricing, and lead time within 24 hours.<\/p>\n
[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.16″ global_colors_info=”{}”][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Features” _builder_version=”4.16″ global_colors_info=”{}”][et_pb_row _builder_version=”4.16″ locked=”off” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_image src=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/freelance-writer-07.png” title_text=”freelance-writer-07″ align=”center” _builder_version=”4.16″ custom_margin=”||10px||false|false” locked=”off” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.20.4″ header_2_font=”Cutive Mono||||||||” header_2_text_color=”#000000″ header_2_font_size=”80px” header_2_letter_spacing=”-0.08em” background_image=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/freelance-writer-12.png” background_size=”initial” background_position=”bottom_center” z_index=”1″ text_orientation=”center” header_2_font_size_tablet=”60px” header_2_font_size_phone=”30px” header_2_font_size_last_edited=”on|phone” header_2_letter_spacing_tablet=”-6px” header_2_letter_spacing_last_edited=”off|desktop” global_colors_info=”{}” header_2_2_font_size_tablet=”60px” header_3_2_font_size_tablet=”60px” header_4_2_font_size_tablet=”60px” header_5_2_font_size_tablet=”60px” header_6_2_font_size_tablet=”60px” header_2_2_font_size_phone=”30px” header_3_2_font_size_phone=”30px” header_4_2_font_size_phone=”30px” header_5_2_font_size_phone=”30px” header_6_2_font_size_phone=”30px” header_2_2_font_size_last_edited=”on|phone” header_3_2_font_size_last_edited=”on|phone” header_4_2_font_size_last_edited=”on|phone” header_5_2_font_size_last_edited=”on|phone” header_6_2_font_size_last_edited=”on|phone”]<\/p>\n
How to Select the Right Spur Gear<\/h2>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ _builder_version=”4.20.4″ global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_image src=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/freelance-writer-13.png” title_text=”freelance-writer-13″ _builder_version=”4.16″ custom_margin=”||10px||false|false” locked=”off” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_line_height=”1.8em” header_3_font=”Ubuntu|700|||||||” header_3_font_size=”18px” header_3_line_height=”1.4em” global_colors_info=”{}”]<\/p>\n
STEP 01<\/div>\n
Define Module & Pitch<\/h3>\n
Module is the fundamental size parameter \u2014 both gears in a meshing pair must share the same module and pressure angle. Calculate required module from torque, shaft spacing, and desired tooth count. Standard modules: 0.5, 0.8, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10.<\/p>\n
[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_image src=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/freelance-writer-13.png” title_text=”freelance-writer-13″ _builder_version=”4.16″ custom_margin=”||10px||false|false” locked=”off” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_line_height=”1.8em” header_3_font=”Ubuntu|700|||||||” header_3_font_size=”18px” header_3_line_height=”1.4em” locked=”off” global_colors_info=”{}”]<\/p>\n
STEP 02<\/div>\n
Determine Gear Ratio<\/h3>\n
Gear ratio = driven teeth \u00f7 driving teeth. Spur gear single-stage ratios typically range from 1:1 to 1:7. For higher ratios, use two stages or combine with a worm reducer upstream. Avoid ratios below 1:1.2 or above 1:8 in a single mesh for best efficiency.<\/p>\n
[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_image src=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/freelance-writer-13.png” title_text=”freelance-writer-13″ _builder_version=”4.16″ custom_margin=”||10px||false|false” locked=”off” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_line_height=”1.8em” header_3_font=”Ubuntu|700|||||||” header_3_font_size=”18px” header_3_line_height=”1.4em” locked=”off” global_colors_info=”{}”]<\/p>\n
STEP 03<\/div>\n
Select Material Grade<\/h3>\n
Match material to load and environment: alloy steel (42CrMo) for high-torque structural drives; POM for quiet, lubrication-free precision drives; stainless for wet or corrosive environments; brass for EMI-sensitive positions. Harder surface = longer life but higher cost and longer lead time.<\/p>\n
[\/et_pb_text][et_pb_image src=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/freelance-writer-13.png” title_text=”freelance-writer-13″ _builder_version=”4.16″ custom_margin=”||10px||false|false” locked=”off” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ _builder_version=”4.20.4″ global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_image src=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/freelance-writer-13.png” title_text=”freelance-writer-13″ _builder_version=”4.16″ custom_margin=”||10px||false|false” locked=”off” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_line_height=”1.8em” header_3_font=”Ubuntu|700|||||||” header_3_font_size=”18px” header_3_line_height=”1.4em” global_colors_info=”{}”]<\/p>\n
STEP 04<\/div>\n
Specify Accuracy Grade<\/h3>\n
Higher accuracy grade = lower noise, better load distribution, longer life \u2014 but higher cost. Match grade to application: DIN 8\u201310 for general machinery; DIN 6\u20137 for moderate precision conveyors and gearboxes; DIN 4\u20136 (ISO 4\u20135) for instrumentation, robots, and automotive NVH requirements.<\/p>\n
[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_image src=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/freelance-writer-13.png” title_text=”freelance-writer-13″ _builder_version=”4.16″ custom_margin=”||10px||false|false” locked=”off” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_line_height=”1.8em” header_3_font=”Ubuntu|700|||||||” header_3_font_size=”18px” header_3_line_height=”1.4em” locked=”off” global_colors_info=”{}”]<\/p>\n
STEP 05<\/div>\n
Check Bore & Hub Geometry<\/h3>\n
Specify bore diameter, keyway dimensions (width \u00d7 depth per DIN 6885 or ANSI B17.1), and set-screw positions before ordering. OEM bore configurations including spline bores, D-flat bores, and press-fit hubs are all available within our ODM programme.<\/p>\n
[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_image src=”https:\/\/superiortransmissioninc.com\/wp-content\/uploads\/2026\/09\/freelance-writer-13.png” title_text=”freelance-writer-13″ _builder_version=”4.16″ custom_margin=”||10px||false|false” locked=”off” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.20.4″ text_font=”Ubuntu||||||||” text_line_height=”1.8em” header_3_font=”Ubuntu|700|||||||” header_3_font_size=”18px” header_3_line_height=”1.4em” locked=”off” global_colors_info=”{}”]<\/p>\n
STEP 06<\/div>\n
Calculate Face Width & Safety Factor<\/h3>\n
Face width is typically 8\u201312\u00d7 module for standard drives. Apply a service factor (AGMA KA \/ DIN KAp) of 1.25\u20132.5 depending on shock load class before finalising face width. For tractor and mining applications, minimum safety factor of 1.5 on tooth root bending stress is recommended.<\/p>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>","protected":false},"excerpt":{"rendered":"
Super GearPrecision parallel-shaft spur gears for automotive, industrial, agricultural, and precision instrument applications \u2014 ISO 9001:2015 & TS16949 certified, OEM\/ODM supported.Super Gear TypesWhat Is a Spur Gear?Structure & Working PrincipleA spur gear is a cylindrical gear with straight teeth cut parallel to the rotation axis. When two spur gears mesh, their involute tooth profiles maintain […]<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-1902","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/superiortransmissioninc.com\/it\/wp-json\/wp\/v2\/pages\/1902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/superiortransmissioninc.com\/it\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/superiortransmissioninc.com\/it\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/it\/wp-json\/wp\/v2\/comments?post=1902"}],"version-history":[{"count":7,"href":"https:\/\/superiortransmissioninc.com\/it\/wp-json\/wp\/v2\/pages\/1902\/revisions"}],"predecessor-version":[{"id":1950,"href":"https:\/\/superiortransmissioninc.com\/it\/wp-json\/wp\/v2\/pages\/1902\/revisions\/1950"}],"wp:attachment":[{"href":"https:\/\/superiortransmissioninc.com\/it\/wp-json\/wp\/v2\/media?parent=1902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}