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
Width Across Teeth
1.75 in
Overall Length
1 3/4 in
Length Through Bore
1.75 in
Pitch Dia.
7.594 in
Pitch Diameter
7.594 in
Overall Length Less Threads
N/A
Chain Pitch
1.250 in
Caliper Diameter
6.8185 in
Material Internal Use
Carbon Steel
Material External Use
Steel
Chain Sprocket Pitch
1.25 in
Bushing Bore [Min]
1/2 in
Inch/Metric
Inch
Chain No.
100
Hardened Teeth
With Hardened Teeth
No. of Teeth
19
Hub Projection
1.06 in
Hub Dia.
4 1/2 in
Bore Size [Max]
3.063 in
Sprocket Style
B
Type
B
Material
Steel
Construction Internal
Welded
Bushing Bore Size [Max]
3.063 in
Outside Dia. [Min]
8.2410 in
No. of Teeth Rows Strands
1
Martin No.
100BTB19H
Outside Dia.
8.241 in
Single Strand Tooth Thickness
0.692 in
Bore Type
Bushed
Hub Length
1.06 in
Bushing Bore [Max]
2 1/2 in
Chain Sprocket Number
100
O.D.
8.241 in
Hub O.D.
4.5 in
Bushing Type
Taper Lock
Bushing Series
2517
Tooth Width
0.692 in
No. of Strands Across
1
Weight
8.81 LB
EAN or UPC
697950043753
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