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 · Sprockets

Hub Sprockets

Name: Custom Precision Gears
Brand: Wolfer

Hub sprockets with a boss — the hub takes bores, keyways and set screws; rigid and shaft-ready. Made to GB/T 1243 / ISO 606 / DIN 8187 tooth forms, teeth can be induction hardened. The table lists teeth z, OD de, pitch dia. dp and hub dimensions for single / double / triple rows by chain number.

Download PDF datasheet → Request a Quote

Specifications · Selector

Hub sprocket selector

All 333 standard sizes from the catalogue PDF across 10 chain sizes. Switch chain size with the tabs; search by model or filter by teeth. All dimensions in mm.

Select by chain size

05B tooth & hub section — 05B · tooth & hub section

Hub sprockets · DIN 8187 / ISO 606 · single / double / triple strand (column superscripts ¹ ² ³) · de tip Ø · dp pitch Ø · dm hub Ø · D hub length · A strand spacing (mm) · Model code: chain-teeth

Model search

Teeth z

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Click a column header to sort. Superscripts ¹ ² ³ = single / double / triple strand. Dimensions in mm. Source: Wolfer sprocket catalogue. Download PDF catalogue ↗

Rotary motion

Synchronous drive parts

Linear motion parts

Shaft connection & protection

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ISO 1328 Class 5 vs. AGMA Q12

Hub Sprockets

Hub sprocket selector