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