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