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