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

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