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
Bushing Bore Size [Max]
2.688 in
Material External Use
Steel
Single Strand Tooth Thickness
0.275 in
Outside Dia. [Min]
5.057 in
Hub Projection
0.35 in
Caliper Diameter
4.4714 in
Type
22
Chain Sprocket Pitch
0.5 in
Sprocket Style
B
Keyway
w/Keyway
No. of Teeth
30
Material
Steel
Bore Size [Max]
2.688 in
Bushing Bore Size [Min]
0.75 in
Chain Sprocket Number
40
Bushing Bore [Min]
0.75 in
Tooth Width
0.275 in
Keyway Size
0.5 in
O.D.
5.057 in
Overall Length Less Threads
N/A
Hub Dia.
4.227 in
Inch/Metric
Inch
Chain No.
40-3
Length Through Bore
1.75 in
Chain Pitch
0.500 in
Hub O.D.
4.25 in
Key Way Size
0.5 in
Overall Length
2.78125 in
Hub Length
0.35 in
Pitch Dia.
4.783 in
Bore Size [Min]
0.75 in
Bushing Series
Q1
Width Across Teeth
1.407 in
Hardened Teeth
With Hardened Teeth
Bushing Type
Split Taper
No. of Strands Across
3
Bore Type
Bushed
Bushing Bore [Max]
2.6875 in
Pitch Diameter
4.7834 in
Construction Internal
Solid
No. of Teeth Rows Strands
3
Outside Dia.
5.057 in
Material Internal Use
Carbon Steel
Weight
4.46 LB
EAN or UPC
697950218304
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