Brass Worm Wheel

The combination of a worm wheel and worm are the components of a worm gear. A worm gear is a staggering shaft gear that creates motion between shafts using threads cut into a cylindrical bar to provide speed reduction. Speed reduction is determined by the number of worm threads and the number of teeth on the worm wheel.




Material Brass
Color Yellow
Modulus 0.5
Weight 16g

Size of the worm wheel
Teeth 20
Teeth Dia 11.2mm
Height 12mm/0.47inch
Outer Diameter 11mm/0.43inch
Hole Diameter 4mm/0.16inch
Step Size 9x7mm/0.35×0.27inch ( Dia x H)
Overall Size 12x11x4mm/0.47×0.39×0.12inch( H x OD x ID)

Brass Worm Wheel

Size of worm gear shaft
Height 20mm/0.79inch
Outer Diameter 9.8mm/0.39inch
Inner Diameter 3.17mm/0.12inch
Size 20×9.8×3.17mm/0.79×0.39×0.12inch( H x OD x ID)


1. Include one 0.5 modulus brass worm gear shaft and one 20 teeth brass worm gear wheel.
2. The transmission structure of the worm shaft is simple, compact, small volume, and lightweight.
3. Worm Shaft Z1=1, turn a round of worm gear teeth, can get a large transmission ratio, generally in the power transmission, the transmission ratio I=10-80, like big transmission ratio, if used with gear transmission, will need to take the multi-stage message.
4. High-quality material selection and carefully processing create a high-quality product.
5. Made of brass, long-time service.

Processing :

1. Material we can work on: Alloy Steel, Carbon Steel, Stainless Steel, Cast Iron, Aluminum, Copper, Brass, and Plastic.
2. Processing gear and shaft: Forging, Lathing, Hobbing, Milling, Cutting, Shaping, Shaving, Grinding, Heat treatment, Teeth Grinding, Inspection.
3. Heat Treatment Method: Carburizing, Induction, Flame, Nitriding
4. Main Machines of Gear and shaft  Production we Have: NC gear hobbing machines, NC Gear Shapers(Gleason, Mode), NC lathe, NC gear Shaving machines, NC gear milling, and Nc gear grinding Machines.


1) Inner packing: oil paper, Polyethylene bag, box

2) Outer packing: Wooden case or pallet

3) Customized packing is also available

Production Lead Time:

15-35 Days after approval.

L/C, D/A, D/P, T/T, Western Union, Money Gram, PayPal
We provide the terms of payment which other suppliers will never try because we are confident in our quality.

After-sales Service:

Please get in touch with our after-sales service department in time within 30 days after you receive the products

Please provide a copy of the PI and describe the problems that appeared.
1) Slight Problem:
Please send the proof to our After-Sales Department, we will reply within 24 hours
2) Serious Problem:
1. We will dispatch our Quality and Problems Appraisers to make a confirmation
2. Have a negotiation of the compensation and sign agreements
3. Our After-Sales Department will perform the duties as the agreements Warranty 12 Months