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

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