50JA12H

Single Strand Sprocket; 50 Chain Size; 12 Teeth; Requires JA QD Bushing

Item #100804224

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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.

Hardened teeth sprockets afford longer chain and sprocket life
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 OD @ Recess	1.825 in
Construction Internal	Solid With Recess Groove
Chain Sprocket Pitch	0.625 in
Pitch Diameter	2.415 in
O.D.	2.708 in
Tooth Width	0.343 in
Bore Type	Bushed
Material Internal Use	Carbon Steel
Chain No.	50
Hardened Teeth	With Hardened Teeth
No. of Strands Across	1
No. of Teeth Rows Strands	1
Overall Length	5/8 in
Single Strand Tooth Thickness	0.343 in
Pitch Dia.	2.415 in
Chain Pitch	0.625 in
Screw Size	#10-24 UNC
Chain Sprocket Number	50
Hub O.D.	2 in
Sprocket Style	B
Type	B
No. of Teeth	12
Bushing Bore [Min]	0.375 in
Hub Dia.	2 in
Hub Recess Width	0.165 in
Bushing Series	JA
Caliper Diameter	2.0148 in
Width Across Teeth	0.343 in
Outside Dia.	2.708 in
Bore Size [Min]	0.375 in
Overall Length Less Threads	N/A
Bushing Bore Size [Min]	0.375 in
Inch/Metric	Inch
Material	Steel
Hub Recess Depth	0.0875 in
Hub Projection	0.28 in
Bushing Type	QD
Length Through Bore	0.56 in
Outside Dia. [Min]	2.7080 in
Hub Recessed	1
Hub Length	0.28 in
Bushing Bore Size [Max]	1.25 in
Material External Use	Steel
Martin No.	50JA12H
Bushing Bore [Max]	1 1/4 in
Bore Size [Max]	1.25 in
Weight	0.34 LB
EAN or UPC	697950041735