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