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 Type
Taper Lock
Bushing Bore Size [Max]
3.063 in
Construction Internal
Welded
No. of Teeth
21
Material Internal Use
Carbon Steel
Bushing Series
2517
Outside Dia. [Min]
9.0430 in
Single Strand Tooth Thickness
0.692 in
Type
B
Material
Steel
Overall Length Less Threads
N/A
Hub Length
1.06 in
No. of Strands Across
1
No. of Teeth Rows Strands
1
Overall Length
1 3/4 in
O.D.
9.043 in
Sprocket Style
B
Chain Pitch
1.250 in
Pitch Diameter
8.387 in
Hub Dia.
4 1/2 in
Outside Dia.
9.043 in
Bushing Bore [Max]
2 1/2 in
Chain Sprocket Number
100
Chain No.
100
Bore Type
Bushed
Length Through Bore
1.75 in
Width Across Teeth
1.75 in
Hub O.D.
4.5 in
Tooth Width
0.692 in
Chain Sprocket Pitch
1.25 in
Material External Use
Steel
Hardened Teeth
With Hardened Teeth
Pitch Dia.
8.387 in
Bushing Bore [Min]
1/2 in
Martin No.
100BTB21H
Hub Projection
1.06 in
Inch/Metric
Inch
Caliper Diameter
7.6134 in
Bore Size [Max]
3.063 in
Weight
10.69 LB
EAN or UPC
697950043777
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