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