D24B21

Metric Roller Chain Sprocket

Item #100967389

40 mm Minimum Bore

112 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

Chain No.	24B, 24B-2
Sprocket Style	B
Root Diameter	230.2 mm
Bore Type	Reborable
Pitch Diameter [Min]	255.6 mm
Hub Length Thru	76.38 mm
Martin No.	24B21
Pin Diameter	25.4 mm
Chain Pitch	38.1 mm
Single Strand Tooth Thickness	23.62 mm
Width Across Teeth	71.98 mm
Outside Dia.	277.86 mm
Caliper Diameter	229.52 mm
Bore Style	Minimum Bore
No. of Teeth	21
Bore Range [Min]	40 mm
Family Name	No. 24 - 38.100 mm Pitch - Double - Type B & C
Outside Dia. [Min]	277.86 mm
Material	Steel
Pitch Root Diameter	230.2 mm
Pitch Diameter	255.6 mm
Series	B
Length Through Bore	100 mm
Hardened Teeth	Without Hardened Teeth
Hub Dia.	159.99 mm
Bore Range [Max]	112 mm
Inch/Metric	Metric
No. of Strands Across	2
Weight	61.37 LB
EAN or UPC	697950406305