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
Hardened teeth sprockets afford longer chain and sprocket life
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
Bushing Bore [Min]
0.5 in
Hub Length
0.93 in
Hardened Teeth
With Hardened Teeth
Pitch Diameter
4.179 in
Tooth Width
0.575 in
No. of Teeth
13
Bore Size [Max]
1.625 in
Inch/Metric
Inch
Bushing Series
1615
Length Through Bore
1.5 in
Material Internal Use
Carbon Steel
Material External Use
Steel
Chain Pitch
1.000 in
Chain No.
80
Construction Internal
Solid
Hub O.D.
3 in
Chain Sprocket Pitch
1 in
Bushing Type
Taper Lock
Caliper Diameter
3.5231 in
Single Strand Tooth Thickness
0.575 in
No. of Teeth Rows Strands
1
Bushing Bore [Max]
1 5/8 in
Outside Dia. [Min]
4.6570 in
O.D.
4.657 in
Bushing Bore Size [Min]
0.5 in
Material
Steel
Bore Type
Bushed
Hub Projection
0.93 in
No. of Strands Across
1
Overall Length
1 1/2 in
Pitch Dia.
4.179 in
Bore Size [Min]
0.5 in
Chain Sprocket Number
80
Hub Dia.
3 in
Overall Length Less Threads
N/A
Outside Dia.
4.657 in
Width Across Teeth
1.5 in
Sprocket Style
B
Type
B
Bushing Bore Size [Max]
1.625 in
Martin No.
80BTB13H
Weight
1.34 LB
EAN or UPC
697950043524
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