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