28A11

Metric Roller Chain Sprocket

Item #100967144

32.02 mm Minimum Bore

112.06 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

Bore Style	Minimum Bore
Hub Projection	N/A
Bore Type	Reborable
Inch/Metric	Metric
Hub Length Thru	N/A
Pitch Diameter [Min]	157.8 mm
Bore Range [Max]	112.06 mm
Sprocket Style	A
Root Diameter	129.8 mm
Pin Diameter	27.94 mm
Single Strand Tooth Thickness	29.44 mm
Chain No.	28B, 28B-1
Family Name	No. 28 - 44.450 mm Pitch - Single - A
Hub Dia.	N/A
Width Across Teeth	29.44 mm
Length Through Bore	29.44 mm
Outside Dia.	185.4 mm
Bore Range [Min]	32.02 mm
Outside Dia. [Min]	185.4 mm
No. of Strands Across	1
Hardened Teeth	Without Hardened Teeth
Chain Pitch	44.45 mm
Series	A
Pitch Diameter	157.8 mm
Material	Steel
Caliper Diameter	128.23 mm
Martin No.	28A11
Pitch Root Diameter	129.8 mm
No. of Teeth	11
Weight	7.01 LB
EAN or UPC	697950406534