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
Construction Internal
Solid With Recess Groove
Length Through Bore
1 in
Hardened Teeth
With Hardened Teeth
Bushing Bore [Min]
0.5 in
Width Across Teeth
1 in
Bore Size [Min]
0.5 in
Material External Use
Steel
Material Internal Use
Carbon Steel
Martin No.
50BTB17H
Sprocket Style
B
Overall Length Less Threads
N/A
Caliper Diameter
2.9869 in
Hub Recess Width
0.22 in
Type
B
Hub O.D.
2.781 in
Pitch Dia.
3.401 in
Outside Dia. [Min]
3.7180 in
No. of Teeth
17
Bushing Type
Taper Lock
Pitch Diameter
3.401 in
Overall Length
1 5/8 in
Inch/Metric
Inch
Material
Steel
Hub Recess Depth
0.05 in
Chain Sprocket Pitch
0.625 in
Bushing Series
1610
O.D.
3.718 in
Bore Type
Bushed
Single Strand Tooth Thickness
0.343 in
Hub Projection
0.66 in
No. of Teeth Rows Strands
1
Bushing Bore Size [Min]
0.5 in
Hub Dia.
2.7813 in
Chain No.
50
Bore Size [Max]
1.625 in
Hub Recessed
1
Hub Length
0.66 in
Chain Sprocket Number
50
Hub OD @ Recess
2.69 in
Bushing Bore [Max]
1 5/8 in
No. of Strands Across
1
Chain Pitch
0.625 in
Outside Dia.
3.718 in
Tooth Width
0.343 in
Bushing Bore Size [Max]
1.625 in
Weight
0.84 LB
EAN or UPC
697950043197
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