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