Martin

Martin 20B21 Simplex Type B Single Pitch Roller Chain Sprocket, 32 mm Dia Bore, 233.664 mm OD, #20B-1 Chain, 21 Teeth, 31.75 mm Pitch, Steel

20B21 MFG #: 20B21
$374.55 / EA
Non-Stock Item
Martin 20B21 Simplex Type B Single Pitch Roller Chain Sprocket, 32 mm Dia Bore, 233.664 mm OD, #20B-1 Chain, 21 Teeth, 31.75 mm Pitch, Steel
  • Bore Diameter: 32 mm
  • Chain Size: #20B-1
  • Country of Origin: US
  • Hub Diameter: 113.995 mm
  • Length Through Bore: 51.003 mm
  • Manufacturer Name: Martin Sprocket & Gear
  • Material: Steel
  • Number of Teeth: 21
  • Outside Diameter: 233.664 mm
  • Pitch: 31.75 mm
  • Pitch Diameter: 213.027 mm
  • Type: Simplex Type B
Metric B style sprockets are flat sprockets with a hub extension welded on one side. These plain bore sprockets can easily be bored to a metric or standard size to fit your application. Keyways, set screws and hardened teeth are quick alterations that can be made.
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  • Item Features
  • Standards
  • Hub one side
  • Precise machining and processes ensure consistent finish and high quality
  • Bores are concentric to pitch line, minimizing run out
  • Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
PROP65: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: www.P65Warnings.ca.gov