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
Hub Recessed
1
Bushing Series
1215
Chain Pitch
1.000 in
Caliper Diameter
2.6111 in
Type
B
Material External Use
Steel
Bushing Bore [Max]
1 1/4 in
Hardened Teeth
With Hardened Teeth
Chain Sprocket Pitch
1 in
Bushing Bore Size [Max]
1.25 in
Bushing Bore [Min]
0.5 in
Hub O.D.
2.375 in
Hub Projection
0.54 in
Single Strand Tooth Thickness
0.575 in
Length Through Bore
1.5 in
Tooth Width
0.575 in
Outside Dia. [Min]
3.6780 in
Sprocket Style
B
Hub Recess Width
0.28 in
Inch/Metric
Inch
Material
Steel
Pitch Dia.
3.236 in
Material Internal Use
Carbon Steel
Pitch Diameter
3.236 in
No. of Teeth
10
Bore Type
Bushed
Hub Dia.
2 3/8 in
Bore Size [Min]
0.5 in
Bushing Type
Taper Lock
Overall Length
1 1/2 in
Outside Dia.
3.678 in
Width Across Teeth
1.5 in
Bore Size [Max]
1.25 in
Construction Internal
Solid With Recess Groove
Bushing Bore Size [Min]
0.5 in
Hub Recess Depth
0.07 in
O.D.
3.678 in
Martin No.
80BTB10H
Chain Sprocket Number
80
Hub Length
0.54 in
No. of Teeth Rows Strands
1
Hub OD @ Recess
2.23 in
Chain No.
80
Overall Length Less Threads
N/A
No. of Strands Across
1
Weight
1.1 LB
EAN or UPC
697950043494
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