24B21

Metric Roller Chain Sprocket

Item #100967088

32.02 mm Minimum Bore

99 mm Maximum Bore

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Product Details

Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at an angle to keyseat.

Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Bores are concentric to pitch line, minimizing run out
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain

Specifications

Caliper Diameter	229.52 mm
Material	Steel
No. of Teeth	21
Bore Range [Min]	32.02 mm
Chain No.	24B, 24B-1
Family Name	No. 24 - 38.100 mm Pitch - Single - Type B & C
Hardened Teeth	Without Hardened Teeth
Bore Style	Minimum Bore
Pitch Diameter [Min]	255.6 mm
Martin No.	24B21
Hub Dia.	140 mm
Pin Diameter	25.4 mm
Length Through Bore	59.99 mm
Series	B
Root Diameter	230.2 mm
Pitch Diameter	255.6 mm
Pitch Root Diameter	230.2 mm
Hub Length Thru	60 mm
Outside Dia.	277.86 mm
Single Strand Tooth Thickness	24.13 mm
Width Across Teeth	24.13 mm
Inch/Metric	Metric
Outside Dia. [Min]	277.86 mm
Sprocket Style	B
Bore Range [Max]	99 mm
No. of Strands Across	1
Chain Pitch	38.1 mm
Bore Type	Reborable
Weight	29.49 LB
EAN or UPC	697950405728