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