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
Bore Size [Min]
0.5 in
Inch/Metric
Inch
Martin No.
50BTB15H
Material External Use
Steel
Overall Length
1 in
Hub Length
0.66 in
Construction Internal
Solid With Recess Groove
Pitch Diameter
3.006 in
Material
Steel
Hub Projection
0.66 in
Bore Type
Bushed
O.D.
3.315 in
Hardened Teeth
With Hardened Teeth
Overall Length Less Threads
N/A
Length Through Bore
1 in
Material Internal Use
Carbon Steel
No. of Teeth
15
Tooth Width
0.343 in
Width Across Teeth
1 in
Hub Recess Width
0.22 in
Sprocket Style
B
Bushing Bore [Max]
1 1/4 in
Caliper Diameter
2.5896 in
Hub O.D.
2.469 in
Pitch Dia.
3.006 in
Hub Recessed
1
Bushing Bore [Min]
0.5 in
Chain No.
50
Bushing Series
1210
Hub Recess Depth
0.09 in
Outside Dia.
3.315 in
Outside Dia. [Min]
3.3150 in
Bore Size [Max]
1.25 in
Hub OD @ Recess
2.28 in
Bushing Bore Size [Min]
0.5 in
No. of Strands Across
1
No. of Teeth Rows Strands
1
Single Strand Tooth Thickness
0.343 in
Type
B
Chain Pitch
0.625 in
Bushing Bore Size [Max]
1.25 in
Bushing Type
Taper Lock
Chain Sprocket Number
50
Chain Sprocket Pitch
0.625 in
Hub Dia.
2.4688 in
Weight
0.72 LB
EAN or UPC
697950043173
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