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