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When your project demands a compact, self-locking gear reduction in a tight space, standard spur gears fall short. Engineers, hobbyists, and small-batch manufacturers working on robotic arms, conveyor drives, and motorized positioning stages need a worm gear set that delivers consistent mesh, low backlash, and quiet operation without constant lubrication. This 1 Module Nylon Precision Worm Gear & Worm Shaft set is engineered for exactly those demands.
The set consists of a nylon worm wheel (gear) paired with a matching worm shaft (rod), available in tooth counts from 15 to 80 teeth and bore diameters of 5 mm (~0.197 in), 6 mm (~0.236 in), 8 mm (~0.315 in), 10 mm (~0.394 in), and 12 mm (~0.472 in). Worm shafts are offered in stainless steel (A-type and B-type) and 45# carbon steel (B-type and L-type), with outer diameters typically in the 8–16 mm range depending on the model selected. Module (pitch) is 1M throughout the range.
Typical use cases include: 1M worm gear for stepper motor reduction in 3D printer extruder upgrades; nylon worm wheel for low-noise conveyor drive in food-handling or light-duty automation; and worm shaft and gear set for DIY rotary table or camera pan-tilt rigs where self-locking under load is essential.
| Module (Pitch) | 1M |
|---|---|
| Gear Material | Nylon (worm wheel); Stainless Steel or 45# Carbon Steel (worm shaft) |
| Tooth Count Range | 15T, 20T, 25T, 30T, 35T, 40T, 50T, 60T, 80T |
| Bore Diameter Options | 5 mm / 6 mm / 8 mm / 10 mm / 12 mm / Without Hole |
| Worm Shaft Types | A-type Stainless, B-type Stainless, B-type 45# Steel, L-type 45# Steel |
| Outer Diameter (Worm Wheel) | See variant options |
| Face Width | See variant options |
| Shaft Outer Diameter | See variant options |
| Shaft Length | See variant options |
| Pressure Angle | 20° |
| Hand of Helix | Right-hand (standard) |
| Quantity per Order | 1 Pcs (per variant selected) |
| Surface Finish (Shaft) | Machined; stainless variants polished |
The tooth count of the worm wheel determines the gear ratio when paired with a single-start worm shaft. For example, a 40-tooth worm wheel with a 1-start worm gives a 40:1 reduction ratio. Higher tooth counts (50T, 60T, 80T) provide greater torque multiplication and stronger self-locking, while lower counts (15T, 20T, 25T) allow faster output speeds. Match your required reduction ratio to the tooth count before ordering.
Engineering-grade nylon offers a good balance of strength, wear resistance, and noise reduction for light-to-medium duty applications such as robotics, camera rigs, and small conveyor drives. For heavy-duty industrial loads or continuous high-torque operation, consider an all-metal worm gear set. If you are unsure whether nylon suits your load, contact us with your torque and speed requirements.
The type designation refers to the shaft end configuration and overall length profile. B-type shafts have a standard symmetrical end design suitable for most motor couplings. A-type shafts feature a slightly different end geometry for specific mounting arrangements. L-type shafts are longer and are available without a pre-drilled bore, intended for custom machining to your exact shaft diameter. Select the type that matches your housing or coupling design.
Stainless steel worm shafts (A-type and B-type) are the better choice for humid, wet, or corrosive environments — such as food processing equipment, outdoor mechanisms, or washdown areas — because they resist rust without additional coating. 45# carbon steel shafts offer higher surface hardness and are well-suited for dry, higher-torque applications where corrosion is not a concern. Both materials are compatible with the nylon worm wheel in this listing.
Measure your motor or drive shaft diameter with a caliper before ordering. Available bore options are 5 mm, 6 mm, 8 mm, 10 mm, and 12 mm. The bore should match your shaft diameter exactly for a secure fit — a loose bore will cause runout and premature wear. If your shaft diameter falls between standard sizes, select the closest smaller bore and have it reamed to size, or choose the L-type worm rod (Without Hole) for custom boring.
Yes. The 1M nylon worm gear and worm shaft set is commonly used in stepper motor reduction stages for 3D printer extruder upgrades, CNC rotary axes, and DIY robotic joints. Select a tooth count that gives your desired step-angle reduction, and match the bore diameter to your stepper motor shaft (typically 5 mm or 8 mm for NEMA 17/23 motors). The self-locking characteristic also prevents the axis from back-driving when the motor is de-energized.
Yes. Each variant in this listing can be ordered individually — you can purchase just the worm wheel (gear) or just the worm shaft (rod) by selecting the corresponding model option. This allows you to replace a worn component without buying a complete set, reducing your maintenance cost over time.
