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