140SF12H

Single Strand Sprocket; 140 Chain Size; 12 Teeth; Requires SF QD Bushing

Item #100803863

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US Tsubaki Inc. H140SF12

Single Strand Sprocket; 140 Chain Size; 12 Teeth; Requires SF QD Bushing

Item #105102633

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Product Details

Hardened teeth on the smaller sprocket of a roller chain drive are recommended if the drive ratio is four to one or greater or if the smaller sprocket has 24 teeth or less and is running at a speed of over 600 rpm.

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’ QD bushings
Stocked Heat Treat

Specifications

Width Across Teeth	0.924 in
Pitch Dia.	6.762 in
Single Strand Tooth Thickness	0.924 in
Bushing Bore Size [Min]	0.5 in
Material	Steel
Bushing Bore Size [Max]	2.938 in
Hub Length	0.33 in
Type	B
Outside Dia.	7.581 in
Material Internal Use	Carbon Steel
No. of Teeth Rows Strands	1
Tooth Width	0.924 in
Chain Sprocket Number	140
Material External Use	Steel
Bushing Bore [Max]	2.9375 in
Pitch Diameter	6.7615 in
Chain Sprocket Pitch	1.75 in
Martin No.	140SF12H
Bushing Type	QD
Hub O.D.	4.75 in
Bore Size [Min]	0.5 in
Inch/Metric	Inch
Length Through Bore	1.25 in
Hardened Teeth	With Hardened Teeth
Outside Dia. [Min]	7.581 in
Construction Internal	Solid
Screw Size	3/8-16 NC
Hub Projection	0.33 in
Caliper Diameter	5.7615 in
Overall Length	1.25 in
Bore Size [Max]	2.938 in
No. of Teeth	12
Chain Pitch	1.750 in
O.D.	7.581 in
Hub Dia.	4 3/4 in
No. of Strands Across	1
Bushing Series	SF
Chain No.	140
Overall Length Less Threads	N/A
Sprocket Style	B
Bore Type	Bushed
Bushing Bore [Min]	0.5 in
Weight	7.04 LB
EAN or UPC	697950042664