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Boston GearRF738-20F-B9-G

RF738-20F-B9-G

700 Series C-Face Coupled Reducer
Item #101853363
  • 3 3/4" Center Distance
  • 20:1 Ratio
  • 180TC or 210C Frame
  • w/Fan
  • C-Face Coupled Input
  • Left Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
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Boston GearRF738-20F-B9-G
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    Shipment Options
  • 3 3/4" Center Distance
  • 20:1 Ratio
  • 180TC or 210C Frame
  • w/Fan
  • C-Face Coupled Input

features

  • Large oil reservoir provides efficient heat dissipation and lubrication for longer life
  • Housing is straddle milled top and bottom for precise alignment
  • Internal baffles ensure positive, leak-free venting
  • Rugged housing fabricated of fine-grained cast iron for maximum strength and greater precision during worm and gear alignment
  • Bronze worm gear is straddle mounted between heavy-duty tapered roller bearings to increase thrust and load capacities on size 713 to 760
  • High strength steel output shaft ensures capacity for high torque
  • Pipe plugs allow easy fill, level and drain in any mounting position
  • Super finished oil seal diameters on both input and output shafts extend seal life

caution

  • High loads, high ambient or operating temperatures, and unusually contaminated atmospheres will require more frequent relubrication.
Base to Centerline of Output Shaft 3.875 in
Reduction Type Single Reduction
Max. Thrust Load @ 1150 rpm 1300 lb/in
Output Torque @ RPM 3707 in lb @ 1750 rpm, 4325 in lb @ 1150 rpm
Output RPM @ 1750 rpm Input 87.5 rpm
Ratio 20:1
Motor Application General Purpose
Output (Shaft or Bore) Size 1 5/8 in
Lubrication None
Torque Out @ 1750 rpm 3707 in lb
Bolt Centers w/ Vertical Base Kits (in) 13.94 x 8.00
Input (Shaft or Bore) Size 1 1/8 in
Box Height 10 7/16 in
Frame Size 180TC, 210C
Thermal Input Horsepower @ 1750 RPM N/A
Output Configuration Left Output
HP @ RPM 5 hp @ 1800 rpm
Max. Thrust Load @ RPM 1300 lb/in @ 1150 rpm, 1300 lb/in @ 1750 rpm
Base to Centerline of Input Shaft 7.625 in
Max. Input HP @ 100 rpm 0.61 hp
Family Name RF
Output RPM @ Input RPM 88 rpm @ 1750 rpm
Max. Overhung Load @ RPM 2000 lb/in @ 1150 rpm, 2000 lb/in @ 1750 rpm
Worm Position Universal
Washdown Duty No
Torque Out @ 1150 rpm 4325 in lb
Bolt Center 8 1/2 in x 4 3/4 in
Box Length 10 in
Bore Code B9
Input HP @ RPM 4.55 hp @ 1150 rpm, 5.95 hp @ 1750 rpm
Base to Shaft Center Height w/High Vert. Base Kit 7 in
Base to Shaft Center Height w/Std. Base Kit 7 1/2 in
Frame 180TC, 210C
Fan Cooled Yes
Max. Overhung Load @ 1750 rpm 2000 lb/in
Shaft Assembly Code G
Center Distance 3 3/4 in
Housing Material Cast Iron
Box Width 8 3/8 in
Motor HP 5 hp
Bolt Centers w/ Std. Base Kit (in) 10 3/8 x 7
Input Configuration C-Face Coupled
Installed Options Fan
Base to Shaft Center Height w/Low Vert. Base Kit 5 1/4 in
Keyway Size 1/4 x 1/8
Weight 101.1 LB
EAN or UPC 781711495919
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