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’ Taper bushings
Stocked Heat Treat
Bore Size [Max]
3 in
Chain Sprocket Pitch
1.5 in
Single Strand Tooth Thickness
0.924 in
No. of Strands Across
1
Material Internal Use
Carbon Steel
Chain Pitch
1.500 in
Caliper Diameter
11.5693 in
Overall Length Less Threads
N/A
Bushing Bore Size [Max]
3 in
Tooth Width
0.924 in
Hub Dia.
5 1/4 in
Bushing Bore Size [Min]
0.938 in
Chain Sprocket Number
120
No. of Teeth
26
Bushing Bore [Min]
0.938 in
Hardened Teeth
With Hardened Teeth
Inch/Metric
Inch
Hub Length
1.08 in
O.D.
13.254 in
Material
Steel
Bore Size [Min]
0.938 in
Outside Dia.
13.254 in
Width Across Teeth
0.924 in
Hub Projection
1.08 in
Bushing Series
3020
Outside Dia. [Min]
13.254 in
No. of Teeth Rows Strands
1
Sprocket Style
B
Pitch Dia.
12.444 in
Construction Internal
Welded
Material External Use
Steel
Bushing Type
Taper Lock
Overall Length
2 in
Bore Type
Bushed
Bushing Bore [Max]
3 in
Pitch Diameter
12.4443 in
Chain No.
120
Length Through Bore
2 in
Martin No.
120BTB26H
Hub O.D.
5.25 in
Type
B
Weight
27.4 LB
EAN or UPC
697950043906
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