28A42

Metric Roller Chain Sprocket

Item #100967167

40.03 mm Minimum Bore

553.82 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

Pin Diameter	27.94 mm
Bore Range [Max]	553.82 mm
No. of Strands Across	1
Caliper Diameter	566.87 mm
Hub Dia.	N/A
Pitch Diameter	594.8 mm
Width Across Teeth	29.44 mm
Hardened Teeth	Without Hardened Teeth
Pitch Diameter [Min]	594.8 mm
Inch/Metric	Metric
Chain No.	28B, 28B-1
Family Name	No. 28 - 44.450 mm Pitch - Single - A
Series	A
Martin No.	28A42
Bore Type	Reborable
Chain Pitch	44.45 mm
Hub Projection	N/A
Outside Dia. [Min]	622.43 mm
Bore Style	Minimum Bore
Hub Length Thru	N/A
Bore Range [Min]	40.03 mm
No. of Teeth	42
Outside Dia.	622.43 mm
Root Diameter	566.9 mm
Single Strand Tooth Thickness	29.44 mm
Length Through Bore	29.44 mm
Sprocket Style	A
Material	Steel
Pitch Root Diameter	566.9 mm
Weight	125.7 LB
EAN or UPC	697950406992