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Boston GearSBKF721B25B5G

SBKF721B25B5G

700 Series C-Face Quilled Bost-Kleen Reducer w/Stainless Epoxy
Item #102898140
  • 2 1/16" Center Distance
  • 25:1 Ratio
  • 56C Frame
  • C-Face Quilled Input
  • Left Output
  • Top Worm Position
  • No Lubricant
  • Cast Iron, Stainless Steel Epoxy Coating
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Boston GearSBKF721B25B5G
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    Shipment Options
  • 2 1/16" Center Distance
  • 25:1 Ratio
  • 56C Frame
  • C-Face Quilled Input
  • Left Output

features

  • Washable
  • Corrosion-resistant
  • Cast iron housing
  • Plated pressure relief valves
  • Double lipped oil seals
  • Excluder seal on output shaft
  • Hard nontoxic metallic finish
  • 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

  • Do not exceed maximum primary pressure rating, as product could rupture and cause injury
  • Do not connect regulator to bottled gas
Box Height 7 3/32 in
Input Configuration C-Face Quilled
Reduction Type Single Reduction
Output RPM @ Input RPM 70 rpm @ 1750 rpm
Box Length 6 in
Input HP @ RPM 0.72 hp @ 1150 rpm, 1.16 hp @ 1750 rpm
Bore Code B5
Box Width 5 3/16 in
Frame Size 56C
Ratio 25:1
Max. Overhung Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Max. Thrust Load @ 1150 rpm 700 lb/in
Bolt Centers w/ Std. Base Kit (in) 6 3/8 x 4 11/16
Bolt Centers w/ Vertical Base Kits (in) 8 3/8 x 4 7/8
Use With 721
Fan Cooled No
Base to Centerline of Output Shaft 3 in
Housing Material Cast Iron, Stainless Steel Epoxy Coating
Family Name SBKF
Base Yes
Base to Shaft Center Height w/Vert. "J" Base Kit 3.94 in
Thermal Input Horsepower @ 1750 RPM N/A
Output Torque @ RPM 790 in lb @ 1150 rpm, 875 in lb @ 1750 rpm
Base to Shaft Center Height w/Std. Base Kit 4.81 in
Motor Application Washdown Duty
Lubrication None
Base to Shaft Center Height w/Low Vert. Base Kit 3.13 in
Output RPM @ 1750 rpm Input 70 rpm
Worm Position Top
Bolt Center 6 3/8 in x 4 11/16 in
HP @ RPM 1 hp @ 1800 rpm
Base to Centerline of Input Shaft 5 1/16 in
Max. Input HP @ 100 rpm 0.094 hp
Base to Shaft Center Height w/High Vert. Base Kit 4.88 in
Output Configuration Left Output
Max. Overhung Load @ 1750 rpm 700 lb/in
Center Distance 2 1/16 in
Bolt Centers w/ Vertical "J" Base Kit (in) 8.63 x 2.63
Torque Out @ 1150 rpm 790 in lb
Input (Shaft or Bore) Size 5/8 in
Frame 56C
Output (Shaft or Bore) Size 1 in
Torque Out @ 1750 rpm 875 in lb
Washdown Duty Yes
Installed Options High Horizontal Base
Max. Thrust Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Shaft Assembly Code G
Weight 29.0 LB
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