What gear precision class can Wolfer achieve?

Wolfer routinely produces ISO 1328 Class 6 hobbed gears and ISO 1328 Class 5 ground gears. Class 5 requires gear-grinding after heat treatment and adds roughly 5–7 days to the lead time.

What is the maximum gear outside diameter?

Standard envelope is up to Ø 600 mm OD. For larger gears (up to Ø 1,200 mm) we use the large-machine bay at our Foshan plant — please share the drawing for a feasibility check.

Do you make plastic gears?

Yes — we machine acetal (POM) and PA66 nylon gears for low-noise, dry-running applications. We also injection-mold plastic gears via partner tooling for higher volumes.

PRODUCT · Locking Assemblies

R22 Keyless Locking Device

Name: Custom Precision Gears
Brand: Wolfer

R22 keyless locking device: tightening the locking screws presses the inner and outer taper rings together, expanding radially against shaft and hub — zero-backlash bidirectional torque, self-centering, repeatedly removable; similar to JB/T 7934 type Z17. Recommended fits: shaft h8 / hub H8. The table lists dimensions, transmissible torque and axial force, contact pressure and DIN 912-12.9 locking screw sizes.

Download PDF datasheet → Request a Quote

R22 keyless locking device dimension diagram — R22 section and product photo · Φd / ΦD / L1 / L2 / L · recommended fits and marking example

Specifications · Selector

R22 keyless locking device specifications

Filter by the conditions below, or search and click a column header to sort; request a quote in one click. Dimensions per catalogue.

Click a column header to sort · one-click quote · full range & tolerances per PDF catalogue. Download PDF catalogue ↗

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ISO 1328 Class 5 vs. AGMA Q12

R22 Keyless Locking Device

R22 keyless locking device specifications