D12B19

Metric Roller Chain Sprocket

Item #100965870

20 mm Minimum Bore

65 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

Length Through Bore	50.01 mm
Inch/Metric	Metric
Single Strand Tooth Thickness	10.87 mm
Chain Pitch	19.05 mm
Chain No.	12B, 12B-2
No. of Teeth	19
Hub Length Thru	39.13 mm
Bore Type	Reborable
Hardened Teeth	Without Hardened Teeth
Pitch Diameter [Min]	115.7 mm
Pitch Diameter	115.7 mm
Family Name	No. 12 - 19.050 mm Pitch - Double - Type B & C
Outside Dia.	127.49 mm
Outside Dia. [Min]	127.49 mm
No. of Strands Across	2
Caliper Diameter	103.28 mm
Material	Steel
Root Diameter	103.7 mm
Bore Range [Max]	65 mm
Martin No.	12B19
Bore Style	Minimum Bore
Hub Dia.	95 mm
Bore Range [Min]	20 mm
Series	B
Sprocket Style	B
Pitch Root Diameter	103.7 mm
Width Across Teeth	30.33 mm
Pin Diameter	12.065 mm
Weight	7.27 LB
EAN or UPC	697950401393