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Martin Sprocket

Martin Sprocket 40B21 - ANSI 40, 21T, Type B hub, 0.875" bore, Pilot Bore, Steel

Model: 40B21

Martin Sprocket 40B21 roller chain sprocket — ANSI 40 (0.500" pitch), 21 teeth, Type B hub, 0.875" pilot bore, 3.355" pitch diameter, steel.

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Technical Specifications

ANSI Number40
Teeth21
Hub StyleType B
Bore TypePilot Bore
Bore Size0.875
Hardened TeethNo
Pitch Diameter (in)3.355
Outer Diameter (in)3.655
MaterialSteel
LTB (in)1.125

Manufacturer

Martin Sprocket

Full-line manufacturer of sprockets, gears, sheaves, couplings, and other power transmission products.

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