D40B68

Double Strand Sprocket

Item #100810200

1.1875 in Minimum Bore

2.75 in 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.

Tolerances meet or exceed ANSI standards
Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
Bores are concentric to pitch line, minimizing run out
Interchangeable with other manufacturers’ split-taper bushings

Specifications

Keyway	No Keyway or Setscrew
No. of Teeth	68
Hub Dia.	4 1/4 in
No. of Strands Across	2
Width Across Teeth	0.837 in
Bore Range [Min]	1.1875 in
Hardened Teeth	Without Hardened Teeth
Bore Range [Max]	2.75 in
Bore Style	Minimum Bore
Outside Dia.	11.115 in
Outside Dia. [Min]	11.115 in
Pitch Diameter [Min]	10.83 in
Series	B
Caliper Diameter	10.514 in
Hub Length Thru	1.85 in
Bore Type	Reborable
Martin No.	40B68
Hub Projection	1.288 in
Pitch Diameter	10.83 in
Chain No.	40
Sprocket Style	B
Single Strand Tooth Thickness	0.275 in
Material	Steel
Length Through Bore	2.125 in
Inch/Metric	Inch
Chain Pitch	0.5 in
Weight	24.41 LB
EAN or UPC	697950007434