12A34

Metric Roller Chain Sprocket

Item #100966366

19.02 mm Minimum Bore

188.05 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.

Bores are concentric to pitch line, minimizing run out
Precise machining and processes ensure consistent finish and high quality
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
Manufactured of high carbon steel

Specifications

Bore Range [Min]	19.02 mm
Outside Dia.	218.21 mm
Bore Range [Max]	188.05 mm
Width Across Teeth	11.1 mm
Sprocket Style	A
No. of Teeth	34
Outside Dia. [Min]	218.21 mm
No. of Strands Across	1
Single Strand Tooth Thickness	11.1 mm
Pitch Diameter [Min]	206.5 mm
Bore Type	Reborable
Inch/Metric	Metric
Chain Pitch	19.05 mm
Root Diameter	194.4 mm
Martin No.	12A34
Family Name	No. 12 - 19.050 mm Pitch - Single - A
Hardened Teeth	Without Hardened Teeth
Length Through Bore	11.1 mm
Caliper Diameter	194.4 mm
Series	A
Pin Diameter	12.065 mm
Hub Dia.	N/A
Material	Steel
Pitch Diameter	206.5 mm
Chain No.	12B, 12B-1
Pitch Root Diameter	194.4 mm
Bore Style	Minimum Bore
Hub Projection	N/A
Hub Length Thru	N/A
Weight	7.56 LB
EAN or UPC	697950400761