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
Chain Sprocket Number
100
Bushing Type
Taper Lock
Material Internal Use
Carbon Steel
Hardened Teeth
With Hardened Teeth
Outside Dia. [Min]
7.8390 in
Single Strand Tooth Thickness
0.692 in
Outside Dia.
7.839 in
Hub Length
1.06 in
Bushing Bore [Min]
1/2 in
Pitch Dia.
7.199 in
Chain No.
100
Hub Projection
1.06 in
Pitch Diameter
7.199 in
Hub Dia.
4 1/2 in
Martin No.
100BTB18H
No. of Strands Across
1
Length Through Bore
1.75 in
Bushing Series
2517
Bushing Bore [Max]
2 1/2 in
Width Across Teeth
1.75 in
Inch/Metric
Inch
Material
Steel
Tooth Width
0.692 in
Material External Use
Steel
Bore Size [Max]
3.063 in
No. of Teeth Rows Strands
1
Type
B
Hub O.D.
4.5 in
Bore Type
Bushed
Bushing Bore Size [Max]
3.063 in
Overall Length Less Threads
N/A
Construction Internal
Welded
Chain Pitch
1.250 in
Chain Sprocket Pitch
1.25 in
Overall Length
1 3/4 in
O.D.
7.839 in
Sprocket Style
B
No. of Teeth
18
Caliper Diameter
6.4485 in
Weight
7.95 LB
EAN or UPC
697950043746
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