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

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