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
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
No. of Strands Across
1
Width Across Teeth
1 in
O.D.
5.057 in
Type
B
Outside Dia. [Min]
5.057 in
Hub O.D.
3 in
Hub Dia.
3 in
Bore Size [Max]
2.188 in
Inch/Metric
Inch
Material
Steel
No. of Teeth
30
Bushing Bore [Max]
1.625 in
Material External Use
Steel
Pitch Diameter
4.7834 in
Bushing Bore [Min]
0.5 in
Single Strand Tooth Thickness
0.284 in
Tooth Width
0.284 in
No. of Teeth Rows Strands
1
Chain No.
40
Sprocket Style
B
Bore Type
Bushed
Material Internal Use
Atomized Metals
Bushing Type
Taper Lock
Martin No.
40BTB30H
Hub Projection
0.72 in
Overall Length
1 in
Hub Length
0.72 in
Overall Length Less Threads
N/A
Hardened Teeth
With Hardened Teeth
Length Through Bore
1 in
Bushing Series
1610
Chain Sprocket Pitch
0.5 in
Outside Dia.
5.057 in
Pitch Dia.
4.783 in
Chain Pitch
0.500 in
Construction Internal
Solid
Chain Sprocket Number
40
Caliper Diameter
4.4714 in
Bushing Bore Size [Max]
2.188 in
Weight
1.34 LB
EAN or UPC
697950043135
We're here for you
with Service Centers across the country - We have your back
Find a Service Center
