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