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