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Martin Sprocket

Martin Sprocket 25B21 - ANSI 25, 21T, Type B hub, 0.5" bore, Finished bore, Carbon Steel, hardened teeth

Model: 25B21

Martin Sprocket 25B21 roller chain sprocket — ANSI 25 (0.250" pitch), 21 teeth, Type B hub, 0.5" finished bore, 1.677" pitch diameter, carbon steel, hardened teeth.

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Technical Specifications

ANSI Number25
Teeth21
Hub StyleType B
Bore TypeFinished
Bore Size0.5
Hardened TeethYes
Pitch Diameter (in)1.677
Outer Diameter (in)1.827
MaterialCarbon Steel
LTB (in)1

Manufacturer

Martin Sprocket

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

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