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Boston GearBKF721B50B5G

BKF721B50B5G

700 Series C-Face Quilled Bost-Kleen Reducer
Item #102817938
  • 2 1/16" Center Distance
  • 50:1 Ratio
  • 56C Frame
  • C-Face Quilled Input
  • Left Output
  • Top Worm Position
  • No Lubricant
  • Cast Iron, White Epoxy Coating
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Boston GearBKF721B50B5G
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    Shipment Options
  • 2 1/16" Center Distance
  • 50:1 Ratio
  • 56C Frame
  • C-Face Quilled Input
  • Left Output

features

  • Washable
  • Corrosion-resistant
  • Durable white epoxy finish
  • Cast iron housing
  • Plated pressure relief valves
  • Double lipped oil seals
  • 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

compliances

  • 0

caution

  • Use of external guides or supports is strongly recommended for overhead mounting.
Base to Centerline of Output Shaft 3 in
Fan Cooled No
Torque Out @ 1750 rpm 857 in lb
HP @ RPM 0.3333333 hp @ 1200 rpm, 0.5 hp @ 1800 rpm
Frame Size 56C
Box Height 7 3/32 in
Center Distance 2 1/16 in
Shaft Assembly Code G
Max. Overhung Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Base Yes
Reduction Type Single Reduction
Max. Overhung Load @ 1750 rpm 700 lb/in
Torque Out @ 1150 rpm 750 in lb
Frame 56C
Input HP @ RPM 0.38 hp @ 1150 rpm, 0.66 hp @ 1750 rpm
Motor Application Washdown Duty
Use With 721
Box Length 6 in
Max. Thrust Load @ 1150 rpm 700 lb/in
Bolt Center Length x Bolt Center Width 6 3/8 in x 4 11/16 in
Family Name F
Ratio 50:1
Installed Options High Horizontal Base
Bore Code B5
Output Configuration Left Output
Input (Shaft or Bore) Size 5/8 in
Output RPM @ Input RPM 35 rpm @ 1750 rpm
Output Torque @ RPM 750 in lb @ 1150 rpm, 857 in lb @ 1750 rpm
Base to Centerline of Input Shaft 5 1/16 in
Box Width 5 3/16 in
Washdown Duty Yes
Lubrication None
Output RPM @ 1750 rpm Input 35 rpm
Worm Position Top
Max. Thrust Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Housing Material Cast Iron¦White Epoxy Coating
Output (Shaft or Bore) Size 1 in
Thermal Input Horsepower @ 1750 RPM N/A
Input Configuration C-Face Quilled
Bolt Center 6 3/8 in x 4 11/16 in
Weight 25.0 LB
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