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Boston GearSF726W20B5G

SF726W20B5G

700 Series C-Face Quilled, Hollow Output Reducer
Item #102849500
  • 2 5/8" Center Distance
  • 20:1 Ratio
  • 56C Frame
  • C-Face Quilled Input
  • Hollow Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
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Boston GearSF726W20B5G
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    Shipment Options
  • 2 5/8" Center Distance
  • 20:1 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

  • Use of external guides or supports is strongly recommended for overhead mounting.
Motor Application General Purpose
Ratio 20:1
Bolt Center 8 in Diameter
Max. Thrust Load @ 1150 rpm 900 lb/in
Output (Shaft or Bore) Size 1 7/16 in
Thermal Input Horsepower @ 1750 RPM N/A
Family Name SF
Max. Overhung Load @ 1750 rpm 1000 lb/in
Lubrication None
Frame 56C
Base to Centerline of Output Shaft N/A
Max. Thrust Load @ RPM 900 lb/in @ 1150 rpm, 900 lb/in @ 1750 rpm
Input Configuration C-Face Quilled
Output Configuration Hollow Output
Box Length 6 3/8 in
Bore Code B5
Input HP @ RPM 1.63 hp @ 1150 rpm, 2.34 hp @ 1750 rpm
HP @ RPM 2 hp @ 1800 rpm
Max. Overhung Load @ RPM 1000 lb/in @ 1150 rpm, 1000 lb/in @ 1750 rpm
Output Torque @ RPM 1483 in lb @ 1750 rpm, 1500 in lb @ 1150 rpm
Box Width 3 3/8 in
Output RPM @ 1750 rpm Input 87.5 rpm
Output RPM @ Input RPM 88 rpm @ 1750 rpm
Base to Centerline of Input Shaft 4 1/16 in
Box Height 8 in
Installed Options Flanged Base
Worm Position Universal
Center Distance 2 5/8 in
Shaft Assembly Code G
Input (Shaft or Bore) Size 5/8 in
Use With 726
Washdown Duty No
Torque Out @ 1150 rpm 1500 in lb
Housing Material Cast Iron
Frame Size 56C
Fan Cooled No
Reduction Type Single Reduction
Torque Out @ 1750 rpm 1483 in lb
Weight 69.0 LB
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