{"product_id":"45-steel-worm-gear-set-1-modulus-15-100-teeth","title":"45# Steel Worm Gear Set 1 Modulus 15-100 Teeth Wheel Shaft Gear Box Shaft","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e45# Steel Worm Gear Set — Module 1 Precision Drive for DIY Gearbox Builds\u003c\/h2\u003e\n\u003cp\u003eWhen your power transmission project demands a reliable reduction stage, a mismatched or undersized worm gear set becomes the weakest link in the entire drivetrain. Engineers, hobbyists, and workshop builders who need a compact, high-ratio reduction solution will find this Module 1 worm gear set a dependable foundation for gearbox assemblies, conveyor drives, and rotary indexing fixtures.\u003c\/p\u003e\n\u003cp\u003eEach set is machined from 45# carbon steel — a medium-carbon alloy known for its balance of tensile strength and machinability. The gear wheel follows Module 1 (1 Mod) geometry with a rough bore hub ready for custom shaft fitting, available in 15T, 20T, 25T, 30T, 35T, 40T, 45T, 50T, 55T, 60T, 70T, 80T, and 100T configurations. Pitch diameter scales linearly with tooth count: a 15T wheel measures 15 mm (0.59 in) pitch diameter, while the 100T wheel reaches 100 mm (3.94 in).\u003c\/p\u003e\n\u003cp\u003eTypical use cases include DIY worm gearbox fabrication for slow-speed conveyor lines, rotary table indexing on milling setups, and motorized gate or actuator mechanisms where a self-locking reduction ratio is required. Long-tail applications: \"1 mod worm gear set for stepper motor\", \"carbon steel worm wheel rough bore gearbox\", \"Module 1 worm reduction gear DIY\".\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e⚙️\u003c\/span\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for Module 1 (1 Mod) worm gear systems. Pairs with a matching Module 1 worm shaft. Rough bore hub requires customer machining to final shaft diameter. Verify center distance and gear ratio before ordering.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Module 1 Worm Gear Sets\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n\u003cstrong\u003e45# Carbon Steel Construction\u003c\/strong\u003e\n\u003cp\u003eMachined from medium-carbon 45# steel for solid tensile strength and wear resistance across continuous-duty reduction applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n\u003cstrong\u003eModule 1 Geometry — 13 Tooth Counts\u003c\/strong\u003e\n\u003cp\u003eAvailable in 15T through 100T (15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80, 100 teeth), covering a wide range of reduction ratios in a single product line.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🕳️\u003c\/span\u003e\n\u003cstrong\u003eRough Bore Hub for Custom Shaft Fitting\u003c\/strong\u003e\n\u003cp\u003eThe wheel hub ships with a rough bore, allowing machinists to bore and key to any required shaft diameter — no compromise on fit or concentricity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\n\u003cstrong\u003eSelf-Locking Reduction Capability\u003c\/strong\u003e\n\u003cp\u003eWorm gear geometry provides inherent back-drive resistance at typical lead angles, useful for holding loads without a separate brake in low-speed actuator builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\n\u003cstrong\u003eLinear Pitch Diameter Scaling\u003c\/strong\u003e\n\u003cp\u003eModule 1 means pitch diameter (mm) equals tooth count numerically — straightforward center-distance calculation for gearbox housing design.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\n\u003cstrong\u003eBroad Application Range\u003c\/strong\u003e\n\u003cp\u003eSuited for conveyor drives, rotary indexing tables, motorized gates, stepper motor gearboxes, and other low-speed, high-torque DIY power transmission builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Module 1 Worm Gear Set\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e45# Carbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModule\u003c\/th\u003e\n\u003ctd\u003e1 (1 Mod)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTeeth Count Options\u003c\/th\u003e\n\u003ctd\u003e15T, 20T, 25T, 30T, 35T, 40T, 45T, 50T, 55T, 60T, 70T, 80T, 100T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePitch Diameter\u003c\/th\u003e\n\u003ctd\u003eEqual to tooth count in mm (e.g., 15T = 15 mm \/ 0.59 in; 100T = 100 mm \/ 3.94 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Type\u003c\/th\u003e\n\u003ctd\u003eRough Bore (customer machining required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGear Type\u003c\/th\u003e\n\u003ctd\u003eWorm Reduction Gear Wheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePressure Angle\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFace Width\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich tooth count should I choose for my reduction ratio?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe reduction ratio of a worm gear set equals the number of teeth on the worm wheel divided by the number of starts on the worm shaft. For a single-start worm, a 40T wheel gives 40:1 reduction, a 20T wheel gives 20:1, and so on. Select the tooth count that matches your required output speed and torque. Higher tooth counts provide greater reduction and higher output torque at lower output RPM.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the bore diameter of the worm wheel hub?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe wheel ships with a rough bore — the hub is pre-drilled but not finish-bored to a specific diameter. You will need to machine (bore and optionally key) the hub to match your shaft diameter. This approach gives you full control over fit tolerance and keyway geometry. Contact us to confirm the rough bore range for your selected tooth count before ordering.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs 45# carbon steel strong enough for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003e45# steel (equivalent to AISI 1045) is a medium-carbon steel with a typical tensile strength of approximately 600–800 MPa in the normalized condition. It is well-suited for moderate-load worm gear applications such as conveyor drives, rotary tables, and motorized actuators. For very high shock loads or corrosive environments, consider whether a hardened or stainless alternative would be more appropriate for your specific duty cycle.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this worm gear set resist corrosion?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003e45# carbon steel has limited inherent corrosion resistance. For indoor, dry, or lightly oiled environments this is generally acceptable with routine maintenance lubrication. For outdoor, humid, or washdown environments, apply a suitable protective coating or lubricant, or consider a stainless steel alternative. Regular lubrication of the worm mesh is recommended regardless of environment to extend service life.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat worm shaft is compatible with this gear wheel?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThis wheel is designed for use with a Module 1 worm shaft. The worm shaft must share the same module (1 Mod) and pressure angle to mesh correctly. The number of starts on the worm shaft determines the gear ratio in combination with the wheel tooth count. Verify the center distance between worm and wheel axes matches your housing design before assembly.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this gear set with a stepper or servo motor?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Module 1 worm gear sets are commonly used in stepper and servo motor gearbox builds for CNC rotary axes, indexing tables, and low-speed positioning systems. Ensure the motor output shaft diameter is compatible with the rough bore range of the wheel hub (machining required), and that the worm shaft is coupled securely to the motor shaft with appropriate alignment.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the worm gear set self-lock under load?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eWorm gear sets with a low lead angle (typically single-start worms at Module 1) exhibit self-locking behavior, meaning the output shaft cannot back-drive the input. This is useful for holding a load in position without a separate brake. However, self-locking is not guaranteed under all conditions (vibration, shock loads, or high-efficiency worm designs may reduce this effect). Do not rely solely on self-locking for safety-critical load-holding applications.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your Teeth Number above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Which tooth count should I choose for my reduction ratio?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The reduction ratio equals the number of teeth on the worm wheel divided by the number of starts on the worm shaft. For a single-start worm, a 40T wheel gives 40:1 reduction. Select the tooth count that matches your required output speed and torque.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the bore diameter of the worm wheel hub?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The wheel ships with a rough bore — not finish-bored to a specific diameter. You will need to machine the hub to match your shaft diameter. Contact us to confirm the rough bore range for your selected tooth count.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is 45# carbon steel strong enough for my application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"45# steel (AISI 1045 equivalent) has a typical tensile strength of approximately 600–800 MPa normalized. It is well-suited for moderate-load worm gear applications such as conveyor drives, rotary tables, and motorized actuators.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will this worm gear set resist corrosion?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"45# carbon steel has limited inherent corrosion resistance. Apply a protective coating or lubricant for humid or outdoor environments. Regular lubrication of the worm mesh is recommended to extend service life.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What worm shaft is compatible with this gear wheel?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This wheel is designed for use with a Module 1 worm shaft sharing the same module and pressure angle. Verify center distance matches your housing design before assembly.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use this gear set with a stepper or servo motor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Module 1 worm gear sets are commonly used in stepper and servo motor gearbox builds. Ensure the motor shaft diameter is compatible with the rough bore hub (machining required) and that alignment is correct.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does the worm gear set self-lock under load?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Single-start Module 1 worm gear sets typically exhibit self-locking behavior. However, do not rely solely on self-locking for safety-critical load-holding applications, as vibration or shock loads may reduce this effect.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"1 Mod 15T","offer_id":52443459256594,"sku":"GLFBNHHHXCDZH1002x1","price":29.23,"currency_code":"USD","in_stock":true},{"title":"1 Mod 20T","offer_id":52443459289362,"sku":"GLFBNHHHXCDZH1003x1","price":31.27,"currency_code":"USD","in_stock":true},{"title":"1 Mod 25T","offer_id":52443459322130,"sku":"GLFBNHHHXCDZH1004x1","price":33.03,"currency_code":"USD","in_stock":true},{"title":"1 Mod 30T","offer_id":52443459354898,"sku":"GLFBNHHHXCDZH1005x1","price":35.97,"currency_code":"USD","in_stock":true},{"title":"1 Mod 35T","offer_id":52443459387666,"sku":"GLFBNHHHXCDZH1006x1","price":40.05,"currency_code":"USD","in_stock":true},{"title":"1 Mod 40T","offer_id":52443459420434,"sku":"GLFBNHHHXCDZH1007x1","price":43.51,"currency_code":"USD","in_stock":true},{"title":"1 Mod 45T","offer_id":52443459453202,"sku":"GLFBNHHHXCDZH1008x1","price":47.04,"currency_code":"USD","in_stock":true},{"title":"1 Mod 50T","offer_id":52443459485970,"sku":"GLFBNHHHXCDZH1009x1","price":51.12,"currency_code":"USD","in_stock":true},{"title":"1 Mod 55T","offer_id":52443459518738,"sku":"GLFBNHHHXCDZH1010x1","price":55.75,"currency_code":"USD","in_stock":true},{"title":"1 Mod 60T","offer_id":52443459551506,"sku":"GLFBNHHHXCDZH1011x1","price":61.05,"currency_code":"USD","in_stock":true},{"title":"1 Mod 70T","offer_id":52443459584274,"sku":"GLFBNHHHXCDZH1012x1","price":65.67,"currency_code":"USD","in_stock":true},{"title":"1 Mod 80T","offer_id":52443459617042,"sku":"GLFBNHHHXCDZH1013x1","price":82.08,"currency_code":"USD","in_stock":true},{"title":"1 Mod 100T","offer_id":52443459649810,"sku":"GLFBNHHHXCDZH1014x1","price":103.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture6of8_41c45ead-d318-4f26-913b-6fe30027e8ba.jpg?v=1783349126","url":"https:\/\/homediyer.com\/products\/45-steel-worm-gear-set-1-modulus-15-100-teeth","provider":"HomeDIYer","version":"1.0","type":"link"}