12A47

Metric Roller Chain Sprocket

Item #100966379

25.02 mm Minimum Bore

267.04 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

Outside Dia.	296.96 mm
Family Name	No. 12 - 19.050 mm Pitch - Single - A
No. of Strands Across	1
Bore Style	Minimum Bore
Chain No.	12B, 12B-1
Hardened Teeth	Without Hardened Teeth
Material	Steel
Pin Diameter	12.065 mm
Caliper Diameter	272.99 mm
Bore Range [Max]	267.04 mm
Width Across Teeth	11.1 mm
No. of Teeth	47
Chain Pitch	19.05 mm
Hub Dia.	N/A
Bore Type	Reborable
Pitch Root Diameter	273.1 mm
Sprocket Style	A
Bore Range [Min]	25.02 mm
Outside Dia. [Min]	296.96 mm
Pitch Diameter	285.2 mm
Pitch Diameter [Min]	285.2 mm
Root Diameter	273.1 mm
Length Through Bore	11.1 mm
Inch/Metric	Metric
Hub Length Thru	N/A
Martin No.	12A47
Series	A
Hub Projection	N/A
Single Strand Tooth Thickness	11.1 mm
Weight	11.1 LB
EAN or UPC	697950401027