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Boston Gear309A-20K-J

309A-20K-J

300 Series Standard Reducer
Item #101856429
  • .94" Center Distance
  • 20:1 Ratio
  • Shaft Input
  • Left Output
  • Bottom Worm Position
  • Mobil SHC634 Synthetic Lubricant
  • Cast Iron
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Boston Gear309A-20K-J
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    Shipment Options
  • .94" Center Distance
  • 20:1 Ratio
  • Shaft Input
  • Left Output
  • Bottom Worm Position

features

  • Prelubricated for ambient temperature range of 50 °F to 125 °F

caution

  • Any sliding spool valve, if held for long periods of time, may stick and not spring return due to fluid residue formation and therefore should be cycled periodically to prevent this from happening
Bolt Center Length x Bolt Center Width 2 3/4 in x 2 3/4 in
Reduction Type Single Reduction
Frame N/A
Box Height 3 15/32 in
Shaft Assembly Code J
Output RPM @ Input RPM 88 rpm @ 1750 rpm
Bolt Center 2 3/4" x 2 3/4"
Output Torque @ RPM 43 in lb @ 1750 rpm
Max. Overhung Load @ 1750 rpm 25 lb/in
HP @ RPM 0.1666667 hp @ 1800 rpm
Input (Shaft or Bore) Size 5/16 in
Base to Centerline of Input Shaft 1 9/16 in
Family Name Std Unit
Washdown Duty No
Use With 309
Thermal Input Horsepower @ 1750 RPM N/A
Max. Thrust Load @ 1150 rpm 25 lb/in
Box Length 2 3/4 in
Input Configuration Shaft Input
Input HP @ RPM 0.17 hp @ 1750 rpm
Housing Material Cast Iron
Torque Out @ 1150 rpm N/A
Center Distance 0.94 in
Output RPM @ 1750 rpm Input 87.5 rpm
Torque Out @ 1750 rpm 43 in lb
Motor Application General Purpose
Base to Centerline of Output Shaft 2 1/2 in
Output (Shaft or Bore) Size 1/2 in
Frame Size Shaft Input, Not a C-Face
Fan Cooled No
Worm Position Bottom
Box Width 2 3/4 in
Installed Options Horizontal Base
Max. Thrust Load @ RPM 25 lb/in @ 1150 rpm, 25 lb/in @ 1750 rpm
Output Configuration Left Output
Lubrication Mobil SHC634 Synthetic
Ratio 20:1
Max. Overhung Load @ RPM 25 lb/in @ 1150 rpm, 25 lb/in @ 1750 rpm
Weight 10.1 LB
EAN or UPC 781711455210
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