Skip to content Skip to navigation menu
Boston GearHF721-15-B7-H-P20

HF721-15-B7-H-P20

700 Series Bostmount C-Face Quilled Reducer
Item #101842947
  • 2 1/16" Center Distance
  • 20:1 Ratio
  • 140TC or 180C Frame
  • C-Face Quilled Input
  • Hollow Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
+ Show More + Show Less
Boston GearHF721-15-B7-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
  • 140TC or 180C 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

  • To clean polycarbonate bowls, use mild soap and water only
  • do not use cleansing agents such as acetone, benzene, carbon tetrachloride, gasoline, toluene, etc., which damage this plastic
Washdown Duty No
Box Height 6 3/8 in
Torque Out @ 1150 rpm 782 in lb
Bolt Center Length x Bolt Center Width 5 in x 2 7/8 in
Bolt Centers w/ Std. Base Kit (in) 6 3/8 x 4 11/16
Input Configuration C-Face Quilled
Worm Position Universal
Bore Code B7
Base to Shaft Center Height w/Low Vert. Base Kit 3.13 in
Output RPM @ 1750 rpm Input 87.5 rpm
Max. Thrust Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Max. Input HP @ 100 rpm 0.11 hp
Max. Overhung Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
HP @ RPM 1 hp @ 1800 rpm
Input (Shaft or Bore) Size 7/8 in
Housing Material Cast Iron
Input HP @ RPM 0.86 hp @ 1150 rpm, 1.4 hp @ 1750 rpm
Base to Shaft Center Height w/Vert. "J" Base Kit 3.94 in
Output RPM @ Input RPM 88 rpm @ 1750 rpm
Motor Application General Purpose
Frame Size 140TC, 180C
Base to Shaft Center Height w/Std. Base Kit 4.81 in
Output Torque @ RPM 782 in lb @ 1150 rpm, 892 in lb @ 1750 rpm
Thermal Input Horsepower @ 1750 RPM N/A
Center Distance 2.0625 in
Use With 721
Box Width 4 45/64 in
Family Name HF
Bolt Centers w/ Vertical "J" Base Kit (in) 8.63 x 2.63
Motor HP 1.5 hp
Bolt Center 5 in x 2 7/8 in
Frame 140TC, 180C
Reduction Type Single Reduction
Box Length 6 in
Output Configuration Hollow Output
Fan Cooled No
Lubrication None
Base to Shaft Center Height w/High Vert. Base Kit 4.88 in
Base to Centerline of Output Shaft 2 9/32 in
Torque Out @ 1750 rpm 892 in lb
Shaft Assembly Code H
Max. Thrust Load @ 1150 rpm 700 lb/in
Keyway Size 3/16 x 3/32
Ratio 20:1
Output (Shaft or Bore) Size 1 1/4 in
Bolt Centers w/ Vertical Base Kits (in) 8 3/8 x 4 7/8
Max. Overhung Load @ 1750 rpm 700 lb/in
Base to Centerline of Input Shaft 4 11/32 in
Weight 26.1 LB
EAN or UPC 781711630310
We're here for you
with Service Centers across the country -
We have your back
Close Compare List Open Compare List Toggle

Product Comparison