40JA17H

QD Bushed Sprocket

Item #100804080

2.975 in Outside Diameter

JA Bushing Series

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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

Chain No.	40
Outside Dia.	2.975 in
Pitch Diameter	2.7211 in
Width Across Teeth	0.284 in
Bushing Bore [Min]	0.5 in
No. of Teeth	17
Hub Dia.	2 1/8 in
Single Strand Tooth Thickness	0.284 in
Bushing Series	JA
Inch/Metric	Inch
Tooth Width	0.284 in
Chain Pitch	0.5 in
No. of Strands Across	1
Martin No.	40JA17H
Material	Steel
Outside Dia. [Min]	2.975 in
Bushing Bore [Max]	1.25 in
Hardened Teeth	With Hardened Teeth
Overall Length	0.625 in
Hub Projection	0.34 in
Caliper Diameter	2.3975 in
Type	B
Sprocket Style	B
Hub Length	0.34 in
Overall Length Less Threads	N/A
Bore Type	Bushed
Bushing Type	QD
Length Through Bore	0.625 in
Screw Size	#10-24 UNC
Weight	0.48 LB
EAN or UPC	697950041605