Skip to content Skip to navigation menu
Boston GearBKCF721B-40SP-B5-GS1

BKCF721B-40SP-B5-GS1

700 Series C-Face Quilled Bost-Kleen Reducer
Item #102854703
  • 2 1/16" Center Distance
  • 40:1 Ratio
  • 56C Frame
  • C-Face Quilled Input
  • Left Output
  • Top Worm Position
  • Mobil SHC634 Synthetic Lubricant
  • Cast Iron, White Epoxy Coating
+ Show More + Show Less
Boston GearBKCF721B-40SP-B5-GS1
Price Unavailable
Price Unavailable
Pricing is unavailable at this time. Please contact Customer Service for assistance.
Online Ordering Restricted
Please contact Customer Service for assistance.
Contact Customer Service
    Shipment Options
  • 2 1/16" Center Distance
  • 40:1 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.
Input HP @ RPM 0.49 hp @ 1150 rpm, 0.81 hp @ 1750 rpm
Base to Shaft Center Height w/Std. Base Kit 4.81 in
Output Torque @ RPM 785 in lb @ 1150 rpm, 876 in lb @ 1750 rpm
Housing Material Cast Iron¦White Epoxy Coating
Thermal Input Horsepower @ 1750 RPM N/A
Base Yes
Family Name F
Installed Options High Horizontal Base, Mobil SHC634 Synthetic Lubricant
Base to Shaft Center Height w/Low Vert. Base Kit 3.13 in
Ratio 40:1
Fan Cooled No
Output RPM @ Input RPM 44 rpm @ 1750 rpm
Max. Input HP @ 100 rpm 0.074 hp
Bolt Centers w/ Std. Base Kit (in) 6 3/8 x 4 11/16
Output (Shaft or Bore) Size 1 in
Box Length 6 in
Output RPM @ 1750 rpm Input 43.75 rpm
HP @ RPM 0.3333333 hp @ 1200 rpm, 0.5 hp @ 1800 rpm
Box Height 7 3/32 in
Bore Code B5
Washdown Duty Yes
Motor Application Washdown Duty
Max. Overhung Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Input (Shaft or Bore) Size 5/8 in
Input Configuration C-Face Quilled
Lubrication Mobil SHC634 Synthetic
Bolt Center 6 3/8 in x 4 11/16 in
Base to Centerline of Input Shaft 5 1/16 in
Torque Out @ 1750 rpm 876 in lb
Output Configuration Left Output
Shaft Assembly Code G
Max. Thrust Load @ RPM 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm
Use With 721
Frame Size 56C
Torque Out @ 1150 rpm 785 in lb
Base to Centerline of Output Shaft 3 in
Box Width 5 3/16 in
Base to Shaft Center Height w/High Vert. Base Kit 4.88 in
Max. Overhung Load @ 1750 rpm 700 lb/in
Center Distance 2 1/16 in
Frame 56C
Bolt Centers w/ Vertical "J" Base Kit (in) 8.63 x 2.63
Base to Shaft Center Height w/Vert. "J" Base Kit 3.94 in
Worm Position Top
Bolt Centers w/ Vertical Base Kits (in) 8 3/8 x 4 7/8
Max. Thrust Load @ 1150 rpm 700 lb/in
Bolt Center Length x Bolt Center Width 6 3/8 in x 4 11/16 in
Reduction Type Single Reduction
Weight 26.1 LB
EAN or UPC 781711573129
We're here for you
with Service Centers across the country -
We have your back
Close Compare List Open Compare List Toggle

Product Comparison