E12C68

Metric Roller Chain Sprocket

Item #100966849

32 mm Minimum Bore

90 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

Bore Range [Min]	32 mm
Length Through Bore	84.99 mm
Pitch Diameter [Min]	412.5 mm
No. of Teeth	68
Hub Dia.	130 mm
Chain Pitch	19.05 mm
Family Name	No. 12 - 19.050 mm Pitch - Triple - Type B & C
Sprocket Style	C
Outside Dia.	424.23 mm
Width Across Teeth	49.78 mm
Pitch Diameter	412.5 mm
Martin No.	12C68
Chain No.	12B, 12B-2
Series	C
Pin Diameter	12.065 mm
Single Strand Tooth Thickness	10.87 mm
Pitch Root Diameter	400.4 mm
Outside Dia. [Min]	424.23 mm
No. of Strands Across	3
Hardened Teeth	Without Hardened Teeth
Inch/Metric	Metric
Caliper Diameter	400.42 mm
Bore Range [Max]	90 mm
Hub Length Thru	85 mm
Material	Steel
Root Diameter	400.4 mm
Bore Style	Minimum Bore
Bore Type	Reborable
Weight	88.71 LB
EAN or UPC	697950401935