28A28

Metric Roller Chain Sprocket

Item #100967161

40.03 mm Minimum Bore

355.18 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

Single Strand Tooth Thickness	29.44 mm
No. of Teeth	28
Hub Dia.	N/A
Width Across Teeth	29.44 mm
Pitch Diameter	397 mm
Bore Range [Max]	355.18 mm
Caliper Diameter	369.06 mm
Sprocket Style	A
Pitch Root Diameter	369.1 mm
Bore Range [Min]	40.03 mm
Bore Style	Minimum Bore
Family Name	No. 28 - 44.450 mm Pitch - Single - A
Pin Diameter	27.94 mm
Bore Type	Reborable
Root Diameter	369.1 mm
Outside Dia. [Min]	424.62 mm
Hub Length Thru	N/A
Chain No.	28B, 28B-1
Material	Steel
Series	A
Inch/Metric	Metric
Hardened Teeth	Without Hardened Teeth
Length Through Bore	29.44 mm
Hub Projection	N/A
Martin No.	28A28
Pitch Diameter [Min]	397 mm
Outside Dia.	424.62 mm
No. of Strands Across	1
Chain Pitch	44.45 mm
Weight	46.03 LB
EAN or UPC	697950406879