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Single Strand Sprocket; 140 Chain Size; 21 Teeth; Requires 3020 Taper Lock Bushing

140BTB21H

Single Strand Sprocket; 140 Chain Size; 21 Teeth; Requires 3020 Taper Lock Bushing
Item #100803812
  • Single Strand Sprocket
  • 140 Chain Size
  • 21 Teeth
  • Requires Taper Lock 3020 Bushing
  • With Hardened Teeth
Single Strand Sprocket; 140 Chain Size; 21 Teeth; Requires 3020 Taper Lock Bushing
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    Shipment Options
  • Single Strand Sprocket
  • 140 Chain Size
  • 21 Teeth
  • Requires Taper Lock 3020 Bushing
  • With Hardened Teeth

description

  • 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

  • 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 No. 140
No. of Strands Across 1
Bushing Bore [Max] 3 in
Bushing Bore [Min] 0.938 in
Type B
No. of Teeth Rows Strands 1
Bushing Bore Size [Min] 0.938 in
Bushing Series 3020
Pitch Dia. 11.742 in
Sprocket Style B
Hub Projection 1.08 in
Width Across Teeth 0.924 in
Overall Length Less Threads N/A
Hardened Teeth With Hardened Teeth
Chain Sprocket Pitch 1.75 in
Chain Pitch 1.750 in
Single Strand Tooth Thickness 0.924 in
Bore Type Bushed
Chain Sprocket Number 140
Outside Dia. 12.66 in
Hub Length 1.08 in
Pitch Diameter 11.7416 in
Hub Dia. 5 1/4 in
Bore Size [Max] 3 in
Martin No. 140BTB21H
No. of Teeth 21
Bushing Type Taper Lock
Tooth Width 0.924 in
O.D. 12.66 in
Bore Size [Min] 0.938 in
Material Internal Use Carbon Steel
Hub O.D. 5.25 in
Overall Length 2 in
Length Through Bore 2 in
Construction Internal Welded
Caliper Diameter 10.7088 in
Inch/Metric Inch
Material Steel
Material External Use Steel
Bushing Bore Size [Max] 3 in
Outside Dia. [Min] 12.66 in
Weight 25.2 LB
EAN or UPC 697950043999
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