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Boston Gear721-15-H

721-15-H

700 Series Standard Reducer
Item #101837658
  • 2 1/16" Center Distance
  • 15:1 Ratio
  • Shaft Input
  • Left & Right Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
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Boston Gear721-15-H
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    Shipment Options
  • 2 1/16" Center Distance
  • 15:1 Ratio
  • Shaft Input
  • Left & Right Output
  • Universal Worm Position

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

  • Must be filled to the proper level with the recommended lubricant for your application before operation
Housing Material Cast Iron
Reduction Type Single Reduction
Input Configuration Shaft Input
Motor Application General Purpose
Use With 721
Input (Shaft or Bore) Size 5/8 in
Torque Out @ 1750 rpm 840 in lb
Output RPM @ Input RPM 117 rpm @ 1750 rpm
Box Length 6 in
Max. Overhung Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Torque Out @ 1150 rpm 752 in lb
Ratio 15:1
Output RPM @ 1750 rpm Input 117 rpm
Fan Cooled No
Base to Shaft Center Height w/Std. Base Kit 4.81 in
Max. Thrust Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Max. Input HP @ 100 rpm 0.13 hp
Frame N/A
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 Configuration Left & Right Output
Base to Shaft Center Height w/Low Vert. Base Kit 3.13 in
Washdown Duty No
Base to Centerline of Output Shaft 2 9/32 in
Output (Shaft or Bore) Size 1 in
Input HP @ RPM 1.06 hp @ 1150 rpm, 1.72 hp @ 1750 rpm
Worm Position Universal
Bolt Center 6 3/8 in x 4 11/16 in
Center Distance 2.0625 in
Lubrication None
Max. Thrust Load @ 1150 rpm 700 lb/in
Box Height 6 3/8 in
Box Width 3 13/16 in
Base to Centerline of Input Shaft 4 11/32 in
Frame Size Shaft Input, Not a C-Face
Base to Shaft Center Height w/Vert. "J" Base Kit 3.94 in
Base to Shaft Center Height w/High Vert. Base Kit 4.88 in
Thermal Input Horsepower @ 1750 RPM N/A
Family Name Std Unit
Shaft Assembly Code H
Max. Overhung Load @ 1750 rpm 700 lb/in
HP @ RPM 1 hp @ 1800 rpm
Bolt Centers w/ Vertical Base Kits (in) 8 3/8 x 4 7/8
Output Torque @ RPM 752 in lb @ 1150 rpm, 840 in lb @ 1750 rpm
Weight 24.1 LB
EAN or UPC 781711516881
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