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