12A26

Metric Roller Chain Sprocket

Item #100966358

19.02 mm Minimum Bore

139.36 mm Maximum Bore

+ Show More

Auto Replenish

each One-time purchase

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