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
No. of Teeth Rows Strands
1
Width Across Teeth
1 in
Single Strand Tooth Thickness
0.284 in
Bore Type
Bushed
Chain Sprocket Number
40
Pitch Diameter
3.8306 in
Outside Dia.
4.098 in
Material External Use
Steel
Type
B
Martin No.
40BTB24H
Hardened Teeth
With Hardened Teeth
Chain Pitch
0.500 in
Tooth Width
0.284 in
Pitch Dia.
3.831 in
Bushing Type
Taper Lock
No. of Teeth
24
Bore Size [Max]
2.063 in
Bushing Bore Size [Max]
2.063 in
Hub Length
0.72 in
Caliper Diameter
3.5186 in
Outside Dia. [Min]
4.098 in
Bushing Series
1610
Hub Dia.
3 1/4 in
Material
Steel
Chain Sprocket Pitch
0.5 in
Length Through Bore
1 in
Hub Projection
0.72 in
Inch/Metric
Inch
Bushing Bore [Max]
1.625 in
Bushing Bore [Min]
0.5 in
Sprocket Style
B
Overall Length
1 in
Overall Length Less Threads
N/A
Chain No.
40
O.D.
4.098 in
Hub O.D.
3.25 in
Material Internal Use
Atomized Metals
No. of Strands Across
1
Weight
1.34 LB
EAN or UPC
697950043098
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