12A26

Metric Roller Chain Sprocket

Item #100966358

19.02 mm Minimum Bore

139.36 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

Martin No.	12A26
Sprocket Style	A
Pitch Diameter [Min]	158 mm
Hub Projection	N/A
Inch/Metric	Metric
Single Strand Tooth Thickness	11.1 mm
Pitch Diameter	158 mm
Pin Diameter	12.065 mm
Outside Dia. [Min]	169.79 mm
Chain Pitch	19.05 mm
Bore Range [Max]	139.36 mm
Chain No.	12B, 12B-1
Hardened Teeth	Without Hardened Teeth
Bore Type	Reborable
No. of Strands Across	1
Series	A
Root Diameter	146 mm
Caliper Diameter	145.98 mm
Hub Length Thru	N/A
Bore Style	Minimum Bore
Hub Dia.	N/A
Width Across Teeth	11.1 mm
Family Name	No. 12 - 19.050 mm Pitch - Single - A
Material	Steel
Length Through Bore	11.1 mm
No. of Teeth	26
Bore Range [Min]	19.02 mm
Pitch Root Diameter	146 mm
Outside Dia.	169.79 mm
Weight	3.53 LB
EAN or UPC	697950400600