28A15

Metric Roller Chain Sprocket

Item #100967148

40.03 mm Minimum Bore

169.8 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
Pitch Root Diameter	185.9 mm
Caliper Diameter	184.68 mm
No. of Teeth	15
Bore Style	Minimum Bore
Width Across Teeth	29.44 mm
Hardened Teeth	Without Hardened Teeth
Material	Steel
Series	A
Martin No.	28A15
Inch/Metric	Metric
Chain No.	28B, 28B-1
Single Strand Tooth Thickness	29.44 mm
No. of Strands Across	1
Hub Length Thru	N/A
Pitch Diameter	213.8 mm
Outside Dia.	241.42 mm
Hub Dia.	N/A
Pin Diameter	27.94 mm
Pitch Diameter [Min]	213.8 mm
Bore Range [Min]	40.03 mm
Hub Projection	N/A
Length Through Bore	29.44 mm
Root Diameter	185.9 mm
Outside Dia. [Min]	241.42 mm
Sprocket Style	A
Chain Pitch	44.45 mm
Bore Range [Max]	169.8 mm
Bore Type	Reborable
Weight	12.01 LB
EAN or UPC	697950406619