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

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