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
Bore Size [Max]
1.625 in
Material Internal Use
Carbon Steel
Inch/Metric
Inch
Tooth Width
0.284 in
Chain No.
40
Outside Dia.
3.778 in
Bore Size [Min]
0.5 in
Overall Length Less Threads
N/A
Bushing Bore Size [Min]
0.5 in
No. of Teeth
22
Chain Sprocket Number
40
Material External Use
Steel
Pitch Dia.
3.513 in
Chain Pitch
0.500 in
Bushing Type
Taper Lock
Caliper Diameter
3.2013 in
Pitch Diameter
3.5133 in
Bushing Bore [Max]
1.625 in
Hub Length
0.72 in
O.D.
3.778 in
Bushing Series
1610
Length Through Bore
1 in
Hardened Teeth
With Hardened Teeth
Martin No.
40BTB22H
Overall Length
1 in
No. of Teeth Rows Strands
1
Material
Steel
Sprocket Style
B
Type
B
Construction Internal
Solid
Bore Type
Bushed
Chain Sprocket Pitch
0.5 in
Outside Dia. [Min]
3.778 in
Hub O.D.
2.781 in
Bushing Bore Size [Max]
1.625 in
Hub Dia.
2.7813 in
No. of Strands Across
1
Bushing Bore [Min]
0.5 in
Width Across Teeth
1 in
Hub Projection
0.72 in
Single Strand Tooth Thickness
0.284 in
Weight
0.88 LB
EAN or UPC
697950043074
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