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