Recirculating roller screws SV / BV / PV

Recirculating roller screws SV/BV/PV
SKF recirculating roller screws can simplify a complete transmission and improve its rigidity. They are often used in applications of advancing technology where reliable optimum performance is essential.
SKF recirculating roller screws are available with a large range of diameters and leads. Their great mechanical advantage minimizes input torque and increases application resolution and performance.

Features and benefits

  • Shaft length up to 8 700 mm (please consult SKF for longer screws)
  • Standard lead precision G5
  • High rotational speed depending on screw nominal diameter (up to 3 000 rpm for screws with nominal diameter up to 10 mm)
  • Optional stainless steel material
  • Optional surface treatment for shaft and nut
  • Optional wipers
  • Optional support bearings
  • Very fine lead down to 0,6 mm, while providing a high load carrying capacity and high axial stiffness
  • Fine resolution for high positioning accuracy with high repeatability
  • High axial stiffness, further increased with preloaded versions
  • For most sizes, easy nut disassembly from the shaft if necessary
  • Minimum torque requirements
  • No miniature parts to improve robustness and reliability
  • Many strong contact points provide heavy load capacity and long service life
  • Availability of customized designs

Technical data

Nominal diameter
from 8 to 125 mm
Lead
from 0,6 to 5 mm
Basic dynamic load capacity
up to 756 kN
Basic static load capacity
up to 2 270 kN
Acceleration
up to 5 000 rad/s2

Versions


SVC cylindrical nut with axial play
Nominal diameter
from 8 to 125 mm
Lead
from 0,6 to 5 mm
Basic dynamic load capacity
up to 756 kN
Basic static load capacity
up to 2 270 kN

SVF flanged nut with axial play
Centred flange

Nominal diameter
from 8 to 125 mm
Lead
from 0,6 to 5 mm
Basic dynamic load capacity
up to 756 kN
Basic static load capacity
up to 2 270 kN

BVC cylindrical nut with backlash elimination
Backlash eliminiation by oversized rollers

Nominal diameter
from 8 to 50 mm
Lead
from 0,6 to 2 mm
Basic dynamic load capacity
up to 190 kN
Basic static load capacity
up to 544 kN

BVF flanged nut with backlash elimination
Backlash elimination by oversized rollers

Centred flange

Nominal diameter
from 8 to 50 mm
Lead
from 0,6 to 2 mm
Basic dynamic load capacity
up to 190 kN
Basic static load capacity
up to 544 kN

PVU cylindrical nut with preload
Preloaded split nut for optimum stiffness

Nominal diameter
from 8 to 125 mm
Lead
from 0,6 to 5 mm
Basic dynamic load capacity
up to 434 kN
Basic static load capacity
up to 1 385 kN

PVK flanged nut with preload
Preloaded split nut for optimum stiffness

Centred flange

Nominal diameter    
from 8 to 125 mm
Lead
from 0,6 to 5 mm
Basic dynamic load capacity
up to 434 kN
Basic static load capacity
up to 1 385 kN

Typical applications

  • Medical
  • Laboratory equipment
  • Semi-conductor industry
  • Telescopes
  • Satellites
  • Precision grinders
  • Any many other applications
SKF logo