Worm Gear Hob

Type: Bore /shank type worm wheel hob

Module: m0.3-m30

Helix angle: ±45°

Number of starts: 1-5

Material: HSS M2, M35

Quality: A, AA

A worm hob is designed based on the worm shaft specification. There are no standards for worm gear hobs.Generally this hob is manufactured as ‘ZK’ type. 

Since the overall dimensions of the hob are determined by the worm shaft and worm wheel data, please specify the following data when ordering worm wheel gear hob:

1. Normal or axial module, DP

2. Out dia or pitch dia of worm
3. Worm lead angle
4. Number of threads and hand of thread
5. In case of shank type, shank standard
6. Contact ratio (Non-Standard): Standard contact ratio is generally
20~30%, and users can select either hole or shank type. 

The complete range of hobs produced by us, besides large modules hobs, is completed by

- Solid gear hobs from mod 0.5 -mod. 22 mm

- Spline hobs (parallel or involute such ASA)

- Roller chain hobs

- Carbide hobs

- Worm wheel hobs, shank type or bore type

- Pulley hobs

- HM hobs

The precision class of hobs obviously is regulated by international standards such Din 3968 (class A and class AA), Any special requests on worm gear hob, please contact us for more details.