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