D140B18

Double Strand Sprocket

Item #100806329

1.75 in Minimum Bore

5.25 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

Hardened Teeth	Without Hardened Teeth
Chain Sprocket Pitch	1.75 in
Inch/Metric	Inch
Finished Bore Size	1.75 in
Outside Dia. [Min]	10.975 in
Bushing Bore Size [Max]	5.25 in
Martin No.	140B18
Outside Dia.	10.975 in
O.D.	10.975 in
Width Across Teeth	2.81 in
Hub Projection	1.19 in
Caliper Diameter	9.078 in
Hub Length Thru	3.106 in
No. of Teeth Rows Strands	2
Material Internal Use	Carbon Steel
Material	Steel
Bore Range [Min]	1.75 in
Chain Pitch	1.750 in
Hub Dia.	7 in
Bore Size [Min]	1.75 in
Material External Use	Steel
Hub O.D.	7 in
No. of Strands Across	2
No. of Teeth	18
Sprocket Style	B
Construction Internal	Welded
Family Name	No. 140 - 1 3/4 in Pitch - Double - Type B & C
Pitch Diameter [Min]	10.08 in
Series	B
Pitch Dia.	10.078 in
Bushing Bore [Min]	1.75 in
Pitch Diameter	10.08 in
Bushing Bore Size [Min]	1.75 in
Length Through Bore	4 in
Bore Size [Max]	5.25 in
Bore Range [Max]	5.25 in
Bore Type	Finished Bore
Stock Bore Size	1.75 in
Bore Style	Minimum Bore
Chain No.	140
Chain Sprocket Number	140
Single Strand Tooth Thickness	2.818 in
Weight	65.0 LB
EAN or UPC	697950026558