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.
features
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’ Taper bushings
Stocked Heat Treat
Martin No.
50BTB22H
Chain Sprocket Pitch
0.625 in
Pitch Dia.
4.392 in
Length Through Bore
1 in
Outside Dia.
4.722 in
Chain Pitch
0.625 in
No. of Strands Across
1
Hub Dia.
3 in
Bushing Bore [Max]
2 in
Chain No.
50
Bore Size [Max]
2.063 in
O.D.
4.722 in
Hub Projection
0.66 in
Hub O.D.
3 in
Construction Internal
Solid
Outside Dia. [Min]
4.7220 in
Hardened Teeth
With Hardened Teeth
Bushing Bore [Min]
1/2 in
Bushing Series
1610
Bushing Type
Taper Lock
Material
Steel
Material Internal Use
Atomized Metals
Caliper Diameter
3.9917 in
Inch/Metric
Inch
Sprocket Style
B
Pitch Diameter
4.392 in
Overall Length Less Threads
N/A
Tooth Width
0.343 in
No. of Teeth Rows Strands
1
Width Across Teeth
1 in
Hub Length
0.66 in
Bore Type
Bushed
Type
B
Chain Sprocket Number
50
No. of Teeth
22
Material External Use
Steel
Bushing Bore Size [Max]
2.063 in
Overall Length
1 5/8 in
Single Strand Tooth Thickness
0.343 in
Weight
1.34 LB
EAN or UPC
697950043241
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