Miniature range high performance SP/BP

High-performance miniature ball screw SP/BP series
SKF high-performance miniature ball screws open up new design and performance options for equipment manufacturers.
Designers can downsize machines, extend machine reliability, increase speed and output, and reduce noise for a wide range of applications.

Optimized design features

High-performance miniature ball screw SP/BP series_Cut view

New internal design
Balls are picked up smoothly for a new highly optimized ball recirculation path resulting in optimal performance through the new thread profile definition.

  • Reduces tangential efforts on the recirculating balls
  • Enables up to 2.4 times higher speed limits (ndo < 120 000)
  • Reduces noise levels
  • Enables smoother running
  • Provides much longer service life
External interface
The series SP assortment offers easy mounting with a universal, threaded-nose design.
  • Interchangeable with most existing standard solutions
  • Lubrication hole and wiper housings are standard
  • Customized axial play and backlash elimination available
  • Same attachment as existing series SD
  • Smooth running
  • Low noise levels
  • High speed capability
  • Provides longer service
  • Easy nut assembly
  • Excellent repeatability
  • High positioning accuracy
  • Particularly adapted to backlash elimination configuration
Typical applications
  • Dental milling machines
  • Medical procedure machines
  • Mini machine tools
  • Engraving machines
  • Glass grinding and drilling machines
  • Robotic analyzers

Technical data

Nominal diameter
from 8 to 16 mm
from 2 to 5 mm
Basic dynamic load capacity
from 2,2 to 7,6 kN
Basic static load capacity
from 2,7 to 10,7 kN
Maximum axial play
from 0,03 to 0,07 mm

Miniature ball screw series SP

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