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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
Output Torque @ RPM 43 in lb @ 1750 rpm
Worm Position Bottom
Reduction Type Single Reduction
Torque Out @ 1150 rpm N/A
Base to Centerline of Output Shaft 2 1/2 in
Fan Cooled No
Input Configuration Shaft Input
Max. Thrust Load @ RPM 25 lb/in @ 1150 rpm, 25 lb/in @ 1750 rpm
Box Length 2 3/4 in
Input (Shaft or Bore) Size 5/16 in
Lubrication Mobil SHC634 Synthetic
Output (Shaft or Bore) Size 1/2 in
Torque Out @ 1750 rpm 43 in lb
Output Configuration Left Output
Bolt Center 2 3/4" x 2 3/4"
Input HP @ RPM 0.17 hp @ 1750 rpm
Center Distance 0.94 in
Frame Size Shaft Input, Not a C-Face
Output RPM @ Input RPM 88 rpm @ 1750 rpm
Box Height 3 15/32 in
Housing Material Cast Iron
HP @ RPM 0.1666667 hp @ 1800 rpm
Shaft Assembly Code J
Motor Application General Purpose
Box Width 2 3/4 in
Bolt Center Length x Bolt Center Width 2 3/4 in x 2 3/4 in
Max. Thrust Load @ 1150 rpm 25 lb/in
Output RPM @ 1750 rpm Input 87.5 rpm
Washdown Duty No
Max. Overhung Load @ RPM 25 lb/in @ 1150 rpm, 25 lb/in @ 1750 rpm
Family Name Std Unit
Frame N/A
Use With 309
Thermal Input Horsepower @ 1750 RPM N/A
Max. Overhung Load @ 1750 rpm 25 lb/in
Installed Options Horizontal Base
Base to Centerline of Input Shaft 1 9/16 in
Ratio 20:1
Weight 10.1 LB
EAN or UPC 781711455210
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