12A46

Metric Roller Chain Sprocket

Item #100966378

25.02 mm Minimum Bore

260.97 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. 12 - 19.050 mm Pitch - Single - A
Martin No.	12A46
Pin Diameter	12.065 mm
Hub Projection	N/A
Bore Range [Min]	25.02 mm
Hub Dia.	N/A
No. of Strands Across	1
Outside Dia. [Min]	290.9 mm
Single Strand Tooth Thickness	11.1 mm
Caliper Diameter	267.09 mm
Inch/Metric	Metric
Bore Style	Minimum Bore
Length Through Bore	11.1 mm
Root Diameter	267.1 mm
Chain No.	12B, 12B-1
Sprocket Style	A
Material	Steel
Bore Type	Reborable
Bore Range [Max]	260.97 mm
Pitch Root Diameter	267.1 mm
Series	A
Outside Dia.	290.9 mm
Hub Length Thru	N/A
Hardened Teeth	Without Hardened Teeth
Chain Pitch	19.05 mm
Pitch Diameter [Min]	279.2 mm
No. of Teeth	46
Pitch Diameter	279.2 mm
Width Across Teeth	11.1 mm
Weight	50.13 LB
EAN or UPC	697950401003