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
Material
Steel
Sprocket Style
B
Caliper Diameter
3.7817 in
Chain Pitch
0.625 in
No. of Strands Across
1
Chain Sprocket Number
50
Single Strand Tooth Thickness
0.343 in
Bushing Type
Taper Lock
Hub O.D.
3 in
No. of Teeth Rows Strands
1
Chain Sprocket Pitch
0.625 in
Bore Size [Max]
2.063 in
Martin No.
50BTB21H
Inch/Metric
Inch
Overall Length Less Threads
N/A
Chain No.
50
Tooth Width
0.343 in
Pitch Dia.
4.193 in
Material External Use
Steel
Length Through Bore
1 in
Bushing Bore Size [Max]
2.063 in
Construction Internal
Solid
Overall Length
1 5/8 in
Bore Type
Bushed
Material Internal Use
Atomized Metals
No. of Teeth
21
Outside Dia.
4.522 in
Hub Length
0.66 in
Bushing Bore [Max]
1 5/8 in
Type
B
O.D.
4.522 in
Pitch Diameter
4.193 in
Hub Projection
0.66 in
Outside Dia. [Min]
4.5220 in
Width Across Teeth
1 in
Bushing Bore [Min]
1/2 in
Hub Dia.
3 in
Hardened Teeth
With Hardened Teeth
Bushing Series
1610
Weight
1.34 LB
EAN or UPC
697950043234
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