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PRODUCT · Rotary Transmission

Spur gear

Ground spur gears (module 1–6, 40Cr, JIS Grade 2) and milled spur gears (module 0.5–4, C45 steel, DIN 3967 8d25). 20° pressure angle, 601 standard sizes with online filtering — custom sizes to your drawing.

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Spur gear construction and designation diagram · Bore · Number of teeth · Module
Marking example: 1M-20-12 (Module · Teeth · Bore)

Specifications · Selector

Spur gear online selector

All 601 standard sizes from the product catalogue PDF. Filter by series, module, style, teeth or bore — or search by model code. All dimensions in mm.

Milled spur gear construction: B with single-side hub / A hubless flat, showing b, NL, ØB, ØND, Ød, Øda
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Click a column header to sort. Source: Wolfer spur gear catalogue (19 pages); 4 misprints in the original catalogue corrected via gear geometry d = m·z, da = m·(z+2). Download PDF catalogue ↗

This is a preview of the Custom Gears product page

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