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Boston Gear718-20-H

718-20-H

700 Series Standard Reducer
Item #101808413
  • 1 3/4" Center Distance
  • 20:1 Ratio
  • Shaft Input
  • Left & Right Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
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Boston Gear718-20-H
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    Shipment Options
  • 1 3/4" Center Distance
  • 20:1 Ratio
  • Shaft Input
  • Left & Right Output
  • Universal Worm Position

features

  • Super finished oil seal diameters on both input and output shafts extend seal life
  • 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

caution

  • Always stand clear of loads being lifted
  • Movement could cause the pin to unscrew and drop the load
Shaft Assembly Code H
Box Length 5 1/2 in
Base to Shaft Center Height w/High Vert. Base Kit 4.38 in
Base to Shaft Center Height w/Low Vert. Base Kit 3 in
Housing Material Cast Iron
Input HP @ RPM 0.58 hp @ 1150 rpm, 0.97 hp @ 1750 rpm
Base to Shaft Center Height w/Vert. "J" Base Kit 3.5 in
Lubrication None
Output RPM @ 1750 rpm Input 87.5 rpm
Input (Shaft or Bore) Size 5/8 in
Box Height 5 3/4 in
Output (Shaft or Bore) Size 7/8 in
Max. Overhung Load @ RPM 500 lb/in @ 1150 rpm, 500 lb/in @ 1750 rpm
Bolt Centers w/ Std. Base Kit (in) 5 3/4 x 4 1/2
Torque Out @ 1150 rpm 525 in lb
Ratio 20:1
Output Configuration Left & Right Output
Box Width 3 11/16 in
Family Name Std Unit
Frame Size Shaft Input, Not a C-Face
Center Distance 1 3/4 in
Bolt Center 5 3/4 in x 4 1/2 in
HP @ RPM 0.75 hp @ 1800 rpm
Base to Centerline of Input Shaft 3.8125 in
Output Torque @ RPM 525 in lb @ 1150 rpm, 590 in lb @ 1750 rpm
Washdown Duty No
Base to Centerline of Output Shaft 2.0625 in
Output RPM @ Input RPM 88 rpm @ 1750 rpm
Max. Thrust Load @ RPM 500 lb/in @ 1150 rpm, 500 lb/in @ 1750 rpm
Max. Input HP @ 100 rpm 0.08 hp
Use With 718
Fan Cooled No
Input Configuration Shaft Input
Bolt Centers w/ Vertical "J" Base Kit (in) 7.63 x 2.50
Thermal Input Horsepower @ 1750 RPM N/A
Max. Thrust Load @ 1150 rpm 500 lb/in
Motor Application General Purpose
Worm Position Universal
Torque Out @ 1750 rpm 590 in lb
Frame N/A
Base to Shaft Center Height w/Std. Base Kit 4.38 in
Bolt Centers w/ Vertical Base Kits (in) 7.38 x 4.00
Max. Overhung Load @ 1750 rpm 500 lb/in
Reduction Type Single Reduction
Weight 19.1 LB
EAN or UPC 781711516645
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