12A27

Metric Roller Chain Sprocket

Item #100966359

19.02 mm Minimum Bore

145.45 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

Hardened Teeth	Without Hardened Teeth
Family Name	No. 12 - 19.050 mm Pitch - Single - A
Bore Range [Max]	145.45 mm
Outside Dia.	175.84 mm
Width Across Teeth	11.1 mm
Chain Pitch	19.05 mm
Pitch Diameter	164.1 mm
Pitch Diameter [Min]	164.1 mm
Bore Type	Reborable
Chain No.	12B, 12B-1
Material	Steel
Single Strand Tooth Thickness	11.1 mm
No. of Teeth	27
Inch/Metric	Metric
Length Through Bore	11.1 mm
Caliper Diameter	151.75 mm
Pin Diameter	12.065 mm
Series	A
Hub Dia.	N/A
Bore Style	Minimum Bore
Sprocket Style	A
Outside Dia. [Min]	175.84 mm
Bore Range [Min]	19.02 mm
Root Diameter	152 mm
Pitch Root Diameter	152 mm
Hub Projection	N/A
Martin No.	12A27
No. of Strands Across	1
Hub Length Thru	N/A
Weight	3.82 LB
EAN or UPC	697950400624