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
Tooth Width
0.275 in
Inch/Metric
Inch
Bushing Type
Split Taper
Bushing Bore Size [Min]
0.5 in
Outside Dia.
3.938 in
O.D.
3.938 in
Chain Sprocket Pitch
0.5 in
Bore Type
Bushed
Bushing Bore [Min]
0.5 in
Type
12
Key Way Size
0.375 in
Material Internal Use
Carbon Steel
Material
Steel
Overall Length Less Threads
N/A
Outside Dia. [Min]
3.938 in
Hub Projection
0.48 in
Length Through Bore
1.313 in
Width Across Teeth
0.841 in
Hardened Teeth
With Hardened Teeth
Bore Size [Max]
1.75 in
Pitch Dia.
3.672 in
Hub O.D.
3 in
Chain Sprocket Number
40
No. of Strands Across
2
Material External Use
Steel
No. of Teeth
23
Single Strand Tooth Thickness
0.275 in
Pitch Diameter
3.672 in
Construction Internal
Solid
Bushing Series
P1
Keyway Size
0.375 in
Caliper Diameter
3.3514 in
Bushing Bore [Max]
1.75 in
Keyway
w/Keyway
Hub Dia.
3 in
Chain Pitch
0.500 in
Chain No.
40-2
Sprocket Style
B
Overall Length
2.1875 in
Bushing Bore Size [Max]
1.75 in
No. of Teeth Rows Strands
2
Hub Length
0.48 in
Bore Size [Min]
0.5 in
Weight
1.99 LB
EAN or UPC
697950209715
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