12A50

Metric Roller Chain Sprocket

Item #100966381

25.02 mm Minimum Bore

285.26 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

Hub Dia.	N/A
Family Name	No. 12 - 19.050 mm Pitch - Single - A
Length Through Bore	11.1 mm
Hub Projection	N/A
Pitch Diameter [Min]	303.4 mm
Inch/Metric	Metric
Bore Range [Min]	25.02 mm
Outside Dia. [Min]	315.14 mm
Pitch Root Diameter	291.3 mm
Series	A
Martin No.	12A50
No. of Teeth	50
Chain Pitch	19.05 mm
Caliper Diameter	291.32 mm
Bore Type	Reborable
Pitch Diameter	303.4 mm
Sprocket Style	A
Single Strand Tooth Thickness	11.1 mm
Width Across Teeth	11.1 mm
Outside Dia.	315.14 mm
No. of Strands Across	1
Bore Range [Max]	285.26 mm
Material	Steel
Root Diameter	291.3 mm
Bore Style	Minimum Bore
Hub Length Thru	N/A
Pin Diameter	12.065 mm
Chain No.	12B, 12B-1
Hardened Teeth	Without Hardened Teeth
Weight	12.58 LB
EAN or UPC	697950401065