D40B72

Double Strand Sprocket

Item #100810201

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

Material	Steel
Hub Projection	1.288 in
Inch/Metric	Inch
Hub Dia.	4 1/4 in
Family Name	No. 40 - 1/2 in Pitch - Double - Type B & C
Martin No.	40B72
Series	B
Chain Pitch	0.5 in
Width Across Teeth	0.837 in
Chain No.	40
Bore Range [Min]	1.1875 in
Pitch Diameter	11.46 in
Bore Range [Max]	2.75 in
Caliper Diameter	11.151 in
Hardened Teeth	Without Hardened Teeth
Length Through Bore	2.125 in
No. of Teeth	72
Outside Dia.	11.752 in
No. of Strands Across	2
Single Strand Tooth Thickness	0.275 in
Pitch Diameter [Min]	11.46 in
Bore Type	Reborable
Hub Length Thru	1.85 in
Bore Style	Minimum Bore
Outside Dia. [Min]	11.752 in
Sprocket Style	B
Weight	27.88 LB
EAN or UPC	697950007458