12A54

Metric Roller Chain Sprocket

Item #100966382

30.02 mm Minimum Bore

309.54 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.

Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
Bores are concentric to pitch line, minimizing run out
Precise machining and processes ensure consistent finish and high quality
Manufactured of high carbon steel

Specifications

Single Strand Tooth Thickness	11.1 mm
No. of Teeth	54
Hub Projection	N/A
Bore Style	Minimum Bore
Chain No.	12B, 12B-1
Length Through Bore	11.1 mm
Martin No.	12A54
Pitch Root Diameter	315.6 mm
Bore Range [Max]	309.54 mm
Pitch Diameter [Min]	327.6 mm
Family Name	No. 12 - 19.050 mm Pitch - Single - A
Sprocket Style	A
Pitch Diameter	327.6 mm
No. of Strands Across	1
Bore Type	Reborable
Hub Length Thru	N/A
Outside Dia. [Min]	339.38 mm
Root Diameter	315.6 mm
Hardened Teeth	Without Hardened Teeth
Material	Steel
Bore Range [Min]	30.02 mm
Outside Dia.	339.38 mm
Pin Diameter	12.065 mm
Caliper Diameter	315.57 mm
Chain Pitch	19.05 mm
Hub Dia.	N/A
Width Across Teeth	11.1 mm
Inch/Metric	Metric
Series	A
Weight	16.16 LB
EAN or UPC	697950401089