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