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
Tooth Width
0.343 in
Overall Length Less Threads
N/A
Chain Sprocket Number
50
Construction Internal
Solid
O.D.
3.92 in
Chain Sprocket Pitch
0.625 in
Bushing Series
1610
Bore Size [Max]
1.625 in
Width Across Teeth
1 in
Martin No.
50BTB18H
Type
B
Bore Type
Bushed
Material External Use
Steel
Chain Pitch
0.625 in
Hardened Teeth
With Hardened Teeth
Bushing Bore [Min]
0.5 in
Bushing Bore Size [Max]
1.625 in
Overall Length
1 5/8 in
Outside Dia.
3.92 in
Bushing Type
Taper Lock
Outside Dia. [Min]
3.9200 in
Hub Projection
0.66 in
Hub Dia.
2.7813 in
Bushing Bore Size [Min]
0.5 in
Sprocket Style
B
Caliper Diameter
3.1992 in
Chain No.
50
Single Strand Tooth Thickness
0.343 in
Bushing Bore [Max]
1 5/8 in
Length Through Bore
1 in
Pitch Diameter
3.599 in
No. of Teeth
18
Inch/Metric
Inch
No. of Strands Across
1
Material
Steel
No. of Teeth Rows Strands
1
Hub O.D.
2.781 in
Pitch Dia.
3.599 in
Material Internal Use
Carbon Steel
Hub Length
0.66 in
Bore Size [Min]
0.5 in
Weight
0.94 LB
EAN or UPC
697950043203
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