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
Overall Length
1 5/8 in
Bore Size [Max]
2.063 in
Bushing Bore Size [Max]
2.063 in
Outside Dia. [Min]
4.1200 in
Chain Pitch
0.625 in
Hub Dia.
3 in
Single Strand Tooth Thickness
0.343 in
Material External Use
Steel
Hub Length
0.66 in
No. of Teeth Rows Strands
1
Martin No.
50BTB19H
Pitch Diameter
3.797 in
No. of Strands Across
1
No. of Teeth
19
Bushing Type
Taper Lock
Chain Sprocket Pitch
0.625 in
Hardened Teeth
With Hardened Teeth
Pitch Dia.
3.797 in
Bushing Bore [Max]
1 5/8 in
Construction Internal
Solid
Width Across Teeth
1 in
O.D.
4.12 in
Hub O.D.
3 in
Tooth Width
0.343 in
Bore Type
Bushed
Material Internal Use
Atomized Metals
Inch/Metric
Inch
Chain No.
50
Bushing Series
1610
Type
B
Bushing Bore [Min]
1/2 in
Caliper Diameter
3.3842 in
Length Through Bore
1 in
Overall Length Less Threads
N/A
Material
Steel
Outside Dia.
4.12 in
Hub Projection
0.66 in
Sprocket Style
B
Chain Sprocket Number
50
Weight
1.25 LB
EAN or UPC
697950043210
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