D12B18

Metric Roller Chain Sprocket

Item #100965869

20 mm Minimum Bore

60 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

Chain No.	12B, 12B-2
No. of Strands Across	2
Root Diameter	97.6 mm
Family Name	No. 12 - 19.050 mm Pitch - Double - Type B & C
Pin Diameter	12.065 mm
Caliper Diameter	97.64 mm
Pitch Diameter [Min]	109.7 mm
Pitch Diameter	109.7 mm
Hub Length Thru	39.13 mm
Martin No.	12B18
Bore Type	Reborable
Chain Pitch	19.05 mm
Width Across Teeth	30.33 mm
Single Strand Tooth Thickness	10.87 mm
Length Through Bore	50.01 mm
Inch/Metric	Metric
Series	B
Material	Steel
Hub Dia.	89 mm
Hardened Teeth	Without Hardened Teeth
Sprocket Style	B
Outside Dia.	121.45 mm
Outside Dia. [Min]	121.45 mm
Bore Range [Min]	20 mm
Bore Style	Minimum Bore
No. of Teeth	18
Bore Range [Max]	60 mm
Pitch Root Diameter	97.6 mm
Weight	6.56 LB
EAN or UPC	697950401386