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