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

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