Skip to content Skip to navigation menu
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
+ Show More + Show Less
Boston Gear309A-20K-J
Price Unavailable
Price Unavailable
Pricing is unavailable at this time. Please contact Customer Service for assistance.
Online Ordering Restricted
Please contact Customer Service for assistance.
Contact Customer Service
    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 HP @ RPM 0.17 hp @ 1750 rpm
HP @ RPM 0.1666667 hp @ 1800 rpm
Base to Centerline of Output Shaft 2 1/2 in
Box Length 2 3/4 in
Bolt Center Length x Bolt Center Width 2 3/4 in x 2 3/4 in
Family Name Std Unit
Max. Thrust Load @ 1150 rpm 25 lb/in
Max. Overhung Load @ 1750 rpm 25 lb/in
Motor Application General Purpose
Output RPM @ Input RPM 88 rpm @ 1750 rpm
Frame N/A
Fan Cooled No
Torque Out @ 1750 rpm 43 in lb
Input Configuration Shaft Input
Worm Position Bottom
Torque Out @ 1150 rpm N/A
Input (Shaft or Bore) Size 5/16 in
Housing Material Cast Iron
Output (Shaft or Bore) Size 1/2 in
Box Width 2 3/4 in
Thermal Input Horsepower @ 1750 RPM N/A
Output Torque @ RPM 43 in lb @ 1750 rpm
Bolt Center 2 3/4" x 2 3/4"
Max. Thrust Load @ RPM 25 lb/in @ 1150 rpm, 25 lb/in @ 1750 rpm
Installed Options Horizontal Base
Base to Centerline of Input Shaft 1 9/16 in
Washdown Duty No
Frame Size Shaft Input, Not a C-Face
Output RPM @ 1750 rpm Input 87.5 rpm
Lubrication Mobil SHC634 Synthetic
Output Configuration Left Output
Max. Overhung Load @ RPM 25 lb/in @ 1150 rpm, 25 lb/in @ 1750 rpm
Shaft Assembly Code J
Box Height 3 15/32 in
Center Distance 0.94 in
Use With 309
Reduction Type Single Reduction
Ratio 20:1
Weight 10.1 LB
EAN or UPC 781711455210
We're here for you
with Service Centers across the country -
We have your back
Close Compare List Open Compare List Toggle

Product Comparison