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Boston GearHF718-20-B5-H-P12

HF718-20-B5-H-P12

700 Series Bostmount C-Face Quilled Reducer
Item #101794629
  • 1 3/4" Center Distance
  • 20:1 Ratio
  • 56C Frame
  • C-Face Quilled Input
  • Hollow Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
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Boston GearHF718-20-B5-H-P12
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    Shipment Options
  • 1 3/4" Center Distance
  • 20:1 Ratio
  • 56C Frame
  • C-Face Quilled Input
  • Hollow Output

features

  • 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
  • Large oil reservoir provides efficient heat dissipation and lubrication for longer life

caution

  • Drives used in a vertical mounting application may require additional pipe plugs and/or grease fittings for proper lubrication and are considered special.
  • High loads, high ambient or operating temperatures, and unusually contaminated atmospheres will require more frequent relubrication.
Worm Position Universal
Max. Input HP @ 100 rpm 0.08 hp
Max. Overhung Load @ 1750 rpm 500 lb/in
Output RPM @ Input RPM 88 rpm @ 1750 rpm
Motor HP 3/4 hp
Frame Size 56C
Max. Thrust Load @ RPM 500 lb/in @ 1150 rpm, 500 lb/in @ 1750 rpm
Output (Shaft or Bore) Size 3/4 in
Bolt Centers w/ Std. Base Kit (in) 5 3/4 x 4 1/2
Frame 56C
Output Configuration Hollow Output
Box Width 4 37/64 in
Torque Out @ 1150 rpm 525 in lb
Bolt Center 4 3/16 in x 2 3/4 in
Output RPM @ 1750 rpm Input 87.5 rpm
Input (Shaft or Bore) Size 5/8 in
Ratio 20:1
HP @ RPM 0.75 hp @ 1800 rpm
Lubrication None
Base to Shaft Center Height w/Low Vert. Base Kit 3 in
Use With 718
Keyway Size 3/16 x 3/32
Bolt Center Length x Bolt Center Width 4 3/16 in x 2 3/4 in
Reduction Type Single Reduction
Bore Code B5
Box Height 5 3/4 in
Family Name HF
Max. Overhung Load @ RPM 500 lb/in @ 1150 rpm, 500 lb/in @ 1750 rpm
Base to Shaft Center Height w/Std. Base Kit 4.38 in
Torque Out @ 1750 rpm 590 in lb
Shaft Assembly Code H
Base to Shaft Center Height w/High Vert. Base Kit 4.38 in
Motor Application General Purpose
Washdown Duty No
Bolt Centers w/ Vertical "J" Base Kit (in) 7.63 x 2.50
Center Distance 1 3/4 in
Base to Centerline of Output Shaft 2 1/16 in
Input HP @ RPM 0.58 hp @ 1150 rpm, 0.97 hp @ 1750 rpm
Base to Centerline of Input Shaft 3 13/16 in
Input Configuration C-Face Quilled
Fan Cooled No
Box Length 5 1/2 in
Bolt Centers w/ Vertical Base Kits (in) 7.38 x 4.00
Thermal Input Horsepower @ 1750 RPM N/A
Max. Thrust Load @ 1150 rpm 500 lb/in
Base to Shaft Center Height w/Vert. "J" Base Kit 3.5 in
Output Torque @ RPM 525 in lb @ 1150 rpm, 590 in lb @ 1750 rpm
Housing Material Cast Iron
Weight 20.1 LB
EAN or UPC 781711630174
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