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Boston GearRF721-15-B5-J

RF721-15-B5-J

700 Series C-Face Coupled Reducer
Item #101854845
  • 2 1/16" Center Distance
  • 15:1 Ratio
  • 56C Frame
  • C-Face Coupled Input
  • Right Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
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Boston GearRF721-15-B5-J
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    Shipment Options
  • 2 1/16" Center Distance
  • 15:1 Ratio
  • 56C Frame
  • C-Face Coupled Input
  • Right Output

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

  • Must be filled to the proper level with the recommended lubricant for your application before operation
Base to Centerline of Output Shaft 2.28125 in
Motor Application General Purpose
Base to Centerline of Input Shaft 4.34375 in
Washdown Duty No
Bolt Centers w/ Std. Base Kit (in) 6 3/8 x 4 11/16
Bolt Center 5 in x 2 7/8 in
Output Configuration Right Output
Frame Size 56C
Shaft Assembly Code J
Max. Thrust Load @ 1150 rpm 700 lb/in
Ratio 15:1
Box Height 6 3/8 in
Max. Overhung Load @ 1750 rpm 700 lb/in
Reduction Type Single Reduction
Bolt Centers w/ Vertical Base Kits (in) 8 3/8 x 4 7/8
Thermal Input Horsepower @ 1750 RPM N/A
Motor HP 3/4 hp
Base to Shaft Center Height w/Low Vert. Base Kit 3.13 in
Box Width 5 3/16 in
Base to Shaft Center Height w/Std. Base Kit 4.81 in
Output Torque @ RPM 752 in lb @ 1150 rpm, 840 in lb @ 1750 rpm
Bolt Centers w/ Vertical "J" Base Kit (in) 8.63 x 2.63
Output RPM @ 1750 rpm Input 117 rpm
Output RPM @ Input RPM 117 rpm @ 1750 rpm
Keyway Size 3/16 x 3/32
Housing Material Cast Iron
Torque Out @ 1750 rpm 840 in lb
Box Length 6 in
Input (Shaft or Bore) Size 5/8 in
Frame 56C
Fan Cooled No
Output (Shaft or Bore) Size 1 in
Base to Shaft Center Height w/High Vert. Base Kit 4.88 in
Family Name RF
HP @ RPM 1 hp @ 1800 rpm
Input HP @ RPM 1.06 hp @ 1150 rpm, 1.72 hp @ 1750 rpm
Torque Out @ 1150 rpm 752 in lb
Max. Overhung Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Max. Thrust Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Lubrication None
Bore Code B5
Base to Shaft Center Height w/Vert. "J" Base Kit 3.94 in
Use With 721
Worm Position Universal
Center Distance 2 1/16 in
Max. Input HP @ 100 rpm 0.13 hp
Input Configuration C-Face Coupled
Weight 36.1 LB
EAN or UPC 781711527030
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