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

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