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
SKF logo