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