BlackStar H25B21 - 25 Pitch B-Hub Sprocket - 21 Tooth


Price:
$ 3.89

Description

The BlackStar H25B21 is a 25 pitch B-Hub roller chain sprocket with 21 teeth, precision manufactured from SAE 1045 steel with induction-hardened teeth for extended wear life and features machine-cut tooth profiles for smooth, reliable chain engagement.

Specifications
Part Number H25B21
Chain Pitch 25
Number of Teeth 21
Minimum Bore 1/4"
Maximum Bore 7/8"
Bore Type Plain Bore
Hub Style B-Hub
Strand Count Single
Material Steel
Hardened Teeth Yes
Outside Diameter 1.81"
Pitch Diameter 1.678"
Approx. Weight 0.28 lbs
BlackStar H25B21 Sprocket Spec Sheet

Cross-references: Browning H25B21, Martin 25BS21, Boston Gear RS25B21

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