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
Construction Internal
Solid
Single Strand Tooth Thickness
0.284 in
Bushing Bore Size [Max]
2.063 in
Chain Sprocket Number
40
Width Across Teeth
1 in
Hub Length
0.72 in
Type
B
Hub Projection
0.72 in
Material External Use
Steel
Hub Dia.
3 in
Chain Sprocket Pitch
0.5 in
Outside Dia.
3.938 in
Bushing Bore [Min]
0.5 in
Bore Size [Max]
2.063 in
Material Internal Use
Atomized Metals
Pitch Diameter
3.672 in
Length Through Bore
1 in
No. of Strands Across
1
Material
Steel
Bore Type
Bushed
Martin No.
40BTB23H
Chain No.
40
O.D.
3.938 in
Hub O.D.
3 in
Hardened Teeth
With Hardened Teeth
Bushing Type
Taper Lock
Outside Dia. [Min]
3.938 in
Overall Length
1 in
Sprocket Style
B
Inch/Metric
Inch
Bushing Series
1610
No. of Teeth Rows Strands
1
No. of Teeth
23
Bushing Bore [Max]
1.625 in
Pitch Dia.
3.672 in
Overall Length Less Threads
N/A
Chain Pitch
0.500 in
Caliper Diameter
3.3514 in
Tooth Width
0.284 in
Weight
1.16 LB
EAN or UPC
697950043081
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