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Boston GearRF721-5-B5-G

RF721-5-B5-G

700 Series C-Face Coupled Reducer
Item #102818340
  • 2 1/16" Center Distance
  • 5:1 Ratio
  • 56C Frame
  • C-Face Coupled Input
  • Left Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
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Boston GearRF721-5-B5-G
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    Shipment Options
  • 2 1/16" Center Distance
  • 5:1 Ratio
  • 56C Frame
  • C-Face Coupled Input
  • Left 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
Family Name RF
Housing Material Cast Iron
Output Configuration Left Output
Base to Centerline of Output Shaft 2 9/32 in
Input Configuration C-Face Coupled
Bore Code B5
Bolt Center Length x Bolt Center Width 5 in x 2 7/8 in
Output Torque @ RPM 575 in lb @ 1150 rpm, 620 in lb @ 1750 rpm
Max. Overhung Load @ 1750 rpm 700 lb/in
Frame Size 56C
Thermal Input Horsepower @ 1750 RPM N/A
Max. Thrust Load @ 1150 rpm 700 lb/in
Max. Thrust Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Torque Out @ 1150 rpm 575 in lb
Bolt Center 5 in x 2 7/8 in
Ratio 5:1
Output RPM @ 1750 rpm Input 350 rpm
Motor Application General Purpose
Frame 56C
Fan Cooled No
Torque Out @ 1750 rpm 620 in lb
Output (Shaft or Bore) Size 1 in
Worm Position Universal
Box Length 6 in
Shaft Assembly Code G
Input (Shaft or Bore) Size 5/8 in
Lubrication None
Reduction Type Single Reduction
Base to Centerline of Input Shaft 4 11/32 in
Box Height 6 3/8 in
Use With 721
Max. Overhung Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Output RPM @ Input RPM 350 rpm @ 1750 rpm
Input HP @ RPM 2.33 hp @ 1150 rpm, 3.66 hp @ 1750 rpm
Box Width 5 3/16 in
Washdown Duty No
HP @ RPM 3 hp @ 1800 rpm
Center Distance 2 1/16 in
Weight 36.1 LB
EAN or UPC 884107152820
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