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Boston GearHF721-30-B5-H-P20

HF721-30-B5-H-P20

700 Series 30:1 Ratio Hollow Assembly Single Reduction Worm Gear Reducer Without Base
Item #101795948
  • 1 Input Motor hp
  • 700 Series
  • 2.06 in Center Distance
  • Single Reduction
Boston GearHF721-30-B5-H-P20
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    Shipment Options
  • 1 Input Motor hp
  • 700 Series
  • 2.06 in Center Distance
  • Single Reduction

description

  • Our standard 700 Series - the heart of Boston Gear's speed reducer product line - has been serving many industries reliably for over 40 years. Its proven modular design has set the industry standard for performance and is the most imitated product in today's worm gear speed reducer market.

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

  • 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.
Washdown Duty No
Max. Overhung Load @ 1750 rpm 700 lb/in
Input (Shaft or Bore) Size 5/8 in
Output Torque Rating Range [Max] 999 lb-in, 109 Nm
Bolt Centers w/ Vertical "J" Base Kit (in) 8.63 x 2.63
Max. Thrust Load @ 1150 rpm 700 lb/in
Output Torque 871 lb-in
Torque Out @ 1150 rpm 782 in lb
Box Height 6 3/8 in
Thermal Input Horsepower @ 1750 RPM N/A
Family Name HF
Ratio 30:1
Output Torque Rating Range [Min] 750 lb-in, 85 Nm
Frame 56C
Standard AGMA Service Class I
Frame Size 56C
Fan Cooled No
Output Shaft Projection Hollow Output
Box Width 4 45/64 in
Bolt Centers w/ Vertical Base Kits (in) 8 3/8 x 4 7/8
Output Bore Shaft Dia. 1.25 in
Bolt Center Length x Bolt Center Width 5 in x 2 7/8 in
Bore Code B5
Material Cast Iron, Standard Paint
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
Motor HP 0.75 hp
Max. Input HP @ 100 rpm 0.11 hp
Max. Thrust Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Media Mapping Output H
Bolt Centers w/ Std. Base Kit (in) 6 3/8 x 4 11/16
Base to Centerline of Input Shaft 4 11/32 in
Input Motor HP 1
Base to Shaft Center Height w/Std. Base Kit 4.81 in
Output Speed 58.3 rpm
Rated Efficiency 81%
Series 700
Style Right Angle
Output Shaft Hollow
Output RPM @ 1750 rpm Input 87.5 rpm
Output (Shaft or Bore) Size 1 1/4 in
Center Distance 2.0625 in
Reduction Type Single
Base Mounting Attachment No Base
Output Configuration Hollow Output
Max. Overhung Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Center Distance Code 721
Input Configuration C-Face Quilled
Base to Shaft Center Height w/Low Vert. Base Kit 3.13 in
HP @ RPM 1 hp @ 1800 rpm
Use With 721
Housing Material Cast Iron
Shaft Assembly Code H
Lubrication None
Keyway Size 3/16 x 3/32
Input Power Rating 0.99 hp, 0.738 kW
Motor Frame Size B556C
Worm Position Universal
Bolt Center 5 in x 2 7/8 in
Output Torque @ RPM 782 in lb @ 1150 rpm, 892 in lb @ 1750 rpm
Box Length 6 in
Base to Centerline of Output Shaft 2 9/32 in
Media Mapping Style HF
Base to Shaft Center Height w/High Vert. Base Kit 4.88 in
Motor Application General Purpose
Output RPM @ Input RPM 88 rpm @ 1750 rpm
Torque Out @ 1750 rpm 892 in lb
Media Mapping Hollow Bore P20
Weight 26.1 LB
EAN or UPC 781711630433
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