D140B20

Double Strand Sprocket

Item #100806331

1.75 in Minimum Bore

5.25 in Maximum Bore

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each One-time purchase

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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

Bore Range [Max]	5.25 in
Series	B
Hub Projection	1.19 in
Family Name	No. 140 - 1 3/4 in Pitch - Double - Type B & C
Hardened Teeth	Without Hardened Teeth
Sprocket Style	B
Bore Style	Minimum Bore
No. of Strands Across	2
Length Through Bore	4 in
Material External Use	Steel
Material Internal Use	Carbon Steel
Chain No.	140
Material	Steel
Hub Dia.	7 in
Bushing Bore Size [Max]	5.25 in
Stock Bore Size	1.75 in
Pitch Diameter [Min]	11.19 in
Width Across Teeth	2.81 in
Bushing Bore [Min]	1.75 in
Chain Sprocket Pitch	1.75 in
No. of Teeth	20
Bore Type	Finished Bore
Construction Internal	Welded
Pitch Dia.	11.187 in
No. of Teeth Rows Strands	2
Bore Size [Min]	1.75 in
Outside Dia.	12.099 in
Inch/Metric	Inch
Bore Size [Max]	5.25 in
Pitch Diameter	11.19 in
Chain Pitch	1.750 in
Bore Range [Min]	1.75 in
Martin No.	140B20
Bushing Bore Size [Min]	1.75 in
Single Strand Tooth Thickness	2.818 in
Finished Bore Size	1.75 in
Outside Dia. [Min]	12.099 in
O.D.	12.099 in
Hub O.D.	7 in
Chain Sprocket Number	140
Caliper Diameter	10.187 in
Hub Length Thru	3.106 in
Weight	76.0 LB
EAN or UPC	697950026572