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