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 Dia.
4 1/4 in
Chain No.
80
Bushing Series
Q1
O.D.
7.235 in
Pitch Dia.
6.71 in
Overall Length Less Threads
N/A
Tooth Width
0.575 in
Caliper Diameter
6.0657 in
Overall Length
2.78125 in
Bushing Bore Size [Min]
0.75 in
No. of Teeth
21
Bushing Bore Size [Max]
2.688 in
Keyway Size
0.5 in
Length Through Bore
1.75 in
Hub O.D.
4.203 in
Chain Pitch
1.000 in
Single Strand Tooth Thickness
0.575 in
Bore Size [Max]
2.688 in
Bore Size [Min]
0.75 in
Chain Sprocket Number
80
Pitch Diameter
6.7095 in
Type
4
Outside Dia.
7.235 in
Bushing Bore [Max]
2.6875 in
Construction Internal
Welded
No. of Teeth Rows Strands
1
Hub Projection
1.19 in
Material External Use
Steel
Bushing Type
Split Taper
Key Way Size
0.5 in
Outside Dia. [Min]
7.235 in
Keyway
w/Keyway
Bore Type
Bushed
Width Across Teeth
0.575 in
Material
Steel
Inch/Metric
Inch
Hardened Teeth
With Hardened Teeth
Hub Length
1.19 in
Sprocket Style
B
Material Internal Use
Carbon Steel
No. of Strands Across
1
Bushing Bore [Min]
0.75 in
Chain Sprocket Pitch
1 in
Weight
6.83 LB
EAN or UPC
697950124445
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