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

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