28A13

Metric Roller Chain Sprocket

Item #100967146

32.02 mm Minimum Bore

141.02 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

Material	Steel
Root Diameter	157.8 mm
Hub Dia.	N/A
Martin No.	28A13
Caliper Diameter	156.44 mm
Pin Diameter	27.94 mm
Sprocket Style	A
Outside Dia.	213.36 mm
Hub Projection	N/A
Series	A
Bore Range [Max]	141.02 mm
Pitch Diameter [Min]	185.7 mm
Hub Length Thru	N/A
Bore Range [Min]	32.02 mm
Pitch Diameter	185.7 mm
Outside Dia. [Min]	213.36 mm
Family Name	No. 28 - 44.450 mm Pitch - Single - A
Inch/Metric	Metric
Bore Type	Reborable
No. of Strands Across	1
Single Strand Tooth Thickness	29.44 mm
Chain No.	28B, 28B-1
Pitch Root Diameter	157.8 mm
No. of Teeth	13
Hardened Teeth	Without Hardened Teeth
Length Through Bore	29.44 mm
Bore Style	Minimum Bore
Width Across Teeth	29.44 mm
Chain Pitch	44.45 mm
Weight	9.5 LB
EAN or UPC	697950406572