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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

  • 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

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