28A19

Metric Roller Chain Sprocket

Item #100967152

40.03 mm Minimum Bore

227.05 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

Sprocket Style	A
Chain No.	28B, 28B-1
Bore Type	Reborable
Width Across Teeth	29.44 mm
Bore Range [Min]	40.03 mm
Bore Style	Minimum Bore
Pitch Root Diameter	242.1 mm
Chain Pitch	44.45 mm
Outside Dia. [Min]	297.68 mm
Martin No.	28A19
Hub Length Thru	N/A
Pitch Diameter [Min]	270.1 mm
Hub Projection	N/A
Caliper Diameter	241.2 mm
Series	A
Bore Range [Max]	227.05 mm
No. of Strands Across	1
Material	Steel
Hardened Teeth	Without Hardened Teeth
Hub Dia.	N/A
Pin Diameter	27.94 mm
Single Strand Tooth Thickness	29.44 mm
Root Diameter	242.1 mm
Inch/Metric	Metric
No. of Teeth	19
Outside Dia.	297.68 mm
Length Through Bore	29.44 mm
Pitch Diameter	270.1 mm
Family Name	No. 28 - 44.450 mm Pitch - Single - A
Weight	21.01 LB
EAN or UPC	697950406695