Skip to content Skip to navigation menu
Boston GearRF721-25-B5-G

RF721-25-B5-G

700 Series C-Face Coupled Reducer
Item #101873224
  • 2 1/16" Center Distance
  • 25:1 Ratio
  • 56C Frame
  • C-Face Coupled Input
  • Left Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
+ Show More + Show Less
Boston GearRF721-25-B5-G
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
  • 2 1/16" Center Distance
  • 25:1 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
Housing Material Cast Iron
Washdown Duty No
Fan Cooled No
Frame 56C
Max. Overhung Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Family Name RF
Input HP @ RPM 0.72 hp @ 1150 rpm, 1.16 hp @ 1750 rpm
Bore Code B5
Output Torque @ RPM 790 in lb @ 1150 rpm, 875 in lb @ 1750 rpm
Base to Shaft Center Height w/High Vert. Base Kit 4.88 in
Lubrication None
Torque Out @ 1150 rpm 790 in lb
Input (Shaft or Bore) Size 5/8 in
Thermal Input Horsepower @ 1750 RPM N/A
Frame Size 56C
Ratio 25:1
Max. Overhung Load @ 1750 rpm 700 lb/in
Keyway Size 3/16 x 3/32
Bolt Centers w/ Vertical Base Kits (in) 8 3/8 x 4 7/8
Reduction Type Single Reduction
Base to Shaft Center Height w/Low Vert. Base Kit 3.13 in
Center Distance 2.0625 in
Base to Centerline of Input Shaft 4 11/32 in
Bolt Center Length x Bolt Center Width 5 in x 2 7/8 in
Output Configuration Left Output
Output (Shaft or Bore) Size 1 in
Max. Input HP @ 100 rpm 0.094 hp
Torque Out @ 1750 rpm 875 in lb
Shaft Assembly Code G
Box Width 5 3/16 in
Motor Application General Purpose
Base to Centerline of Output Shaft 2 9/32 in
Bolt Centers w/ Std. Base Kit (in) 6 3/8 x 4 11/16
Input Configuration C-Face Coupled
Base to Shaft Center Height w/Std. Base Kit 4.81 in
Base to Shaft Center Height w/Vert. "J" Base Kit 3.94 in
Max. Thrust Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Motor HP 1 hp
HP @ RPM 1 hp @ 1800 rpm
Bolt Center 5 in x 2 7/8 in
Output RPM @ 1750 rpm Input 70 rpm
Box Height 6 3/8 in
Max. Thrust Load @ 1150 rpm 700 lb/in
Box Length 6 in
Use With 721
Output RPM @ Input RPM 70 rpm @ 1750 rpm
Worm Position Universal
Bolt Centers w/ Vertical "J" Base Kit (in) 8.63 x 2.63
Weight 36.1 LB
EAN or UPC 781711527078
We're here for you
with Service Centers across the country -
We have your back
Close Compare List Open Compare List Toggle

Product Comparison