Skip to content Skip to navigation menu
Boston GearHF721-60-B5-H-P20

HF721-60-B5-H-P20

700 Series Bostmount C-Face Quilled Reducer
Item #101795385
  • 2 1/16" Center Distance
  • 20:1 Ratio
  • 56C Frame
  • C-Face Quilled Input
  • Hollow Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
+ Show More + Show Less
Boston GearHF721-60-B5-H-P20
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
  • 20:1 Ratio
  • 56C Frame
  • C-Face Quilled Input
  • Hollow 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
Bolt Center 5 in x 2 7/8 in
Reduction Type Single Reduction
Shaft Assembly Code H
Base to Shaft Center Height w/Std. Base Kit 4.81 in
Bore Code B5
Fan Cooled No
Max. Overhung Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Motor Application General Purpose
Max. Input HP @ 100 rpm 0.11 hp
Center Distance 2.0625 in
Base to Shaft Center Height w/Low Vert. Base Kit 3.13 in
Base to Shaft Center Height w/Vert. "J" Base Kit 3.94 in
Washdown Duty No
Frame Size 56C
Family Name HF
Base to Centerline of Input Shaft 4 11/32 in
Bolt Centers w/ Vertical "J" Base Kit (in) 8.63 x 2.63
Keyway Size 3/16 x 3/32
Box Length 6 in
Box Width 4 45/64 in
Bolt Center Length x Bolt Center Width 5 in x 2 7/8 in
Thermal Input Horsepower @ 1750 RPM N/A
Output RPM @ 1750 rpm Input 87.5 rpm
Output RPM @ Input RPM 88 rpm @ 1750 rpm
Torque Out @ 1750 rpm 892 in lb
Base to Shaft Center Height w/High Vert. Base Kit 4.88 in
Worm Position Universal
Output Torque @ RPM 782 in lb @ 1150 rpm, 892 in lb @ 1750 rpm
Lubrication None
Input HP @ RPM 0.86 hp @ 1150 rpm, 1.4 hp @ 1750 rpm
Max. Thrust Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
HP @ RPM 1 hp @ 1800 rpm
Frame 56C
Input (Shaft or Bore) Size 5/8 in
Motor HP 0.5 hp
Box Height 6 3/8 in
Base to Centerline of Output Shaft 2 9/32 in
Max. Thrust Load @ 1150 rpm 700 lb/in
Max. Overhung Load @ 1750 rpm 700 lb/in
Ratio 20:1
Torque Out @ 1150 rpm 782 in lb
Output (Shaft or Bore) Size 1 1/4 in
Bolt Centers w/ Std. Base Kit (in) 6 3/8 x 4 11/16
Output Configuration Hollow Output
Bolt Centers w/ Vertical Base Kits (in) 8 3/8 x 4 7/8
Input Configuration C-Face Quilled
Housing Material Cast Iron
Use With 721
Weight 26.1 LB
EAN or UPC 781711630556
We're here for you
with Service Centers across the country -
We have your back
Close Compare List Open Compare List Toggle

Product Comparison