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’ split-taper bushings
Hub Recess Width
0.188 in
Bushing Bore [Max]
1.75 in
Hub Recess Depth
0.186 in
Keyway
w/Keyway
Bore Size [Min]
0.5 in
Hub Recessed
1
Width Across Teeth
0.841 in
Overall Length Less Threads
N/A
Tooth Width
0.275 in
Pitch Dia.
3.196 in
Chain Sprocket Pitch
0.5 in
O.D.
3.457 in
Material External Use
Steel
Overall Length
2.40625 in
Construction Internal
Solid With Recess Groove
Outside Dia. [Min]
3.457 in
Hardened Teeth
With Hardened Teeth
Chain Pitch
0.500 in
Hub Length
0.66 in
Length Through Bore
1.313 in
Bushing Type
Split Taper
Bushing Series
P1
Hub Projection
0.66 in
Hub O.D.
3 in
Bushing Bore Size [Min]
0.5 in
Material
Steel
Bore Size [Max]
1.75 in
Type
12
Pitch Diameter
3.1962 in
No. of Teeth
20
Chain No.
40-2
Bushing Bore Size [Max]
1.75 in
Single Strand Tooth Thickness
0.275 in
Key Way Size
0.375 in
No. of Strands Across
2
Material Internal Use
Carbon Steel
Chain Sprocket Number
40
No. of Teeth Rows Strands
2
Caliper Diameter
2.8842 in
Inch/Metric
Inch
Bushing Bore [Min]
0.5 in
Hub OD @ Recess
2.627 in
Bore Type
Bushed
Hub Dia.
3 in
Outside Dia.
3.457 in
Keyway Size
0.375 in
Sprocket Style
B
Weight
1.59 LB
EAN or UPC
697950098173
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