12A43

Metric Roller Chain Sprocket

Item #100966375

24.02 mm Minimum Bore

242.74 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

Chain Pitch	19.05 mm
Bore Type	Reborable
Hub Length Thru	N/A
Bore Range [Max]	242.74 mm
Pitch Diameter	261 mm
Inch/Metric	Metric
Length Through Bore	11.1 mm
Root Diameter	248.9 mm
Material	Steel
Sprocket Style	A
Series	A
Hardened Teeth	Without Hardened Teeth
Width Across Teeth	11.1 mm
No. of Teeth	43
Single Strand Tooth Thickness	11.1 mm
No. of Strands Across	1
Family Name	No. 12 - 19.050 mm Pitch - Single - A
Martin No.	12A43
Pin Diameter	12.065 mm
Outside Dia. [Min]	272.72 mm
Hub Dia.	N/A
Caliper Diameter	248.74 mm
Pitch Diameter [Min]	261 mm
Chain No.	12B, 12B-1
Hub Projection	N/A
Outside Dia.	272.72 mm
Bore Range [Min]	24.02 mm
Pitch Root Diameter	248.9 mm
Bore Style	Minimum Bore
Weight	10.09 LB
EAN or UPC	697950400945