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Boston GearHF721-15-B5-H-P19

HF721-15-B5-H-P19

700 Series Bostmount C-Face Quilled Reducer
Item #101796526
  • 2 1/16" Center Distance
  • 15:1 Ratio
  • 56C Frame
  • C-Face Quilled Input
  • Hollow Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
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Boston GearHF721-15-B5-H-P19
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    Shipment Options
  • 2 1/16" Center Distance
  • 15:1 Ratio
  • 56C Frame
  • C-Face Quilled Input
  • Hollow Output

features

  • High strength steel output shaft ensures capacity for high torque
  • Pipe plugs allow easy fill, level and drain in any mounting position
  • 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
  • Super finished oil seal diameters on both input and output shafts extend seal life

caution

  • Sudden, slam-type stalling should be avoided. Applications of this kind, which are beyond the expected normal performance of pneumatic power motors, will damage the power train due to the dynamic shock loads imposed.
Output Configuration Hollow Output
Base to Shaft Center Height w/Std. Base Kit 4.81 in
Base to Shaft Center Height w/Low Vert. Base Kit 3.13 in
Family Name HF
HP @ RPM 1 hp @ 1800 rpm
Housing Material Cast Iron
Lubrication None
Max. Overhung Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Max. Input HP @ 100 rpm 0.13 hp
Torque Out @ 1150 rpm 752 in lb
Max. Thrust Load @ 1150 rpm 700 lb/in
Base to Centerline of Input Shaft 4 11/32 in
Input HP @ RPM 1.06 hp @ 1150 rpm, 1.72 hp @ 1750 rpm
Box Length 6 in
Base to Shaft Center Height w/Vert. "J" Base Kit 3.94 in
Input Configuration C-Face Quilled
Bolt Centers w/ Vertical "J" Base Kit (in) 8.63 x 2.63
Output RPM @ 1750 rpm Input 117 rpm
Base to Centerline of Output Shaft 2 9/32 in
Bore Code B5
Frame 56C
Max. Thrust Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Box Width 4 45/64 in
Motor HP 3/4 hp
Output (Shaft or Bore) Size 1 3/16 in
Output Torque @ RPM 752 in lb @ 1150 rpm, 840 in lb @ 1750 rpm
Use With 721
Base to Shaft Center Height w/High Vert. Base Kit 4.88 in
Bolt Centers w/ Vertical Base Kits (in) 8 3/8 x 4 7/8
Center Distance 2 1/16 in
Reduction Type Single Reduction
Input (Shaft or Bore) Size 5/8 in
Washdown Duty No
Frame Size 56C
Fan Cooled No
Thermal Input Horsepower @ 1750 RPM N/A
Shaft Assembly Code H
Bolt Centers w/ Std. Base Kit (in) 6 3/8 x 4 11/16
Bolt Center 5 in x 2 7/8 in
Keyway Size 3/16 x 3/32
Worm Position Universal
Bolt Center Length x Bolt Center Width 5 in x 2 7/8 in
Max. Overhung Load @ 1750 rpm 700 lb/in
Motor Application General Purpose
Ratio 15:1
Box Height 6 3/8 in
Torque Out @ 1750 rpm 840 in lb
Weight 26.1 LB
EAN or UPC 781711630280
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