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Boston GearRF738-20F-B9-J

RF738-20F-B9-J

700 Series C-Face Coupled Reducer
Item #101855340
  • 3 3/4" Center Distance
  • 20:1 Ratio
  • 180TC or 210C Frame
  • w/Fan
  • C-Face Coupled Input
  • Right Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
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Boston GearRF738-20F-B9-J
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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

  • Steel housings must be used for operating pressures above 210 bar (3,000 psi)
Base to Shaft Center Height w/Std. Base Kit 7 1/2 in
Thermal Input Horsepower @ 1750 RPM N/A
Input Configuration C-Face Coupled
Shaft Assembly Code J
Max. Overhung Load @ 1750 rpm 2000 lb/in
Torque Out @ 1750 rpm 3707 in lb
Base to Centerline of Output Shaft 3.875 in
Installed Options Fan
Base to Centerline of Input Shaft 7.625 in
Housing Material Cast Iron
Output (Shaft or Bore) Size 1 5/8 in
Motor Application General Purpose
Input (Shaft or Bore) Size 1 1/8 in
Fan Cooled Yes
Box Height 10 7/16 in
Family Name RF
Bolt Centers w/ Vertical Base Kits (in) 13.94 x 8.00
Center Distance 3 3/4 in
Frame Size 180TC, 210C
Max. Overhung Load @ RPM 2000 lb/in @ 1150 rpm, 2000 lb/in @ 1750 rpm
Max. Thrust Load @ 1150 rpm 1300 lb/in
Bolt Center 8 1/2 in x 4 3/4 in
Max. Thrust Load @ RPM 1300 lb/in @ 1150 rpm, 1300 lb/in @ 1750 rpm
Torque Out @ 1150 rpm 4325 in lb
Box Width 8 3/8 in
Base to Shaft Center Height w/High Vert. Base Kit 7 in
Reduction Type Single Reduction
Output RPM @ Input RPM 88 rpm @ 1750 rpm
Output RPM @ 1750 rpm Input 87.5 rpm
Bore Code B9
Max. Input HP @ 100 rpm 0.61 hp
Motor HP 5 hp
Input HP @ RPM 4.55 hp @ 1150 rpm, 5.95 hp @ 1750 rpm
Box Length 10 in
Base to Shaft Center Height w/Low Vert. Base Kit 5 1/4 in
Ratio 20:1
Output Torque @ RPM 3707 in lb @ 1750 rpm, 4325 in lb @ 1150 rpm
Lubrication None
Output Configuration Right Output
Bolt Centers w/ Std. Base Kit (in) 10 3/8 x 7
HP @ RPM 5 hp @ 1800 rpm
Worm Position Universal
Frame 180TC, 210C
Washdown Duty No
Keyway Size 1/4 x 1/8
Weight 101.1 LB
EAN or UPC 781711495933
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