28A40

Metric Roller Chain Sprocket

Item #100967166

40.03 mm Minimum Bore

525.47 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

No. of Strands Across	1
Bore Style	Minimum Bore
Chain No.	28B, 28B-1
Width Across Teeth	29.44 mm
No. of Teeth	40
Bore Range [Min]	40.03 mm
Pitch Diameter	566.5 mm
Material	Steel
Series	A
Hub Dia.	N/A
Sprocket Style	A
Bore Range [Max]	525.47 mm
Length Through Bore	29.44 mm
Outside Dia.	594.16 mm
Hub Projection	N/A
Bore Type	Reborable
Family Name	No. 28 - 44.450 mm Pitch - Single - A
Pitch Diameter [Min]	566.5 mm
Single Strand Tooth Thickness	29.44 mm
Martin No.	28A40
Chain Pitch	44.45 mm
Hardened Teeth	Without Hardened Teeth
Hub Length Thru	N/A
Pitch Root Diameter	538.6 mm
Outside Dia. [Min]	594.16 mm
Inch/Metric	Metric
Root Diameter	538.6 mm
Pin Diameter	27.94 mm
Caliper Diameter	538.6 mm
Weight	116.4 LB
EAN or UPC	697950406978