Roller screw drives with roller recirculation can simplify the entire power transmission while increasing the rigidity of the entire system. They are often used in technically demanding applications where reliable, optimal performance is essential.

Roller screw drives with roller recirculation are available in a wide range of diameters and pitches. Their key mechanical advantage lies in the minimization of input torque and the increase in resolution and performance in the application.

FEATURES AND BENEFITS
-Length up to 8,700 mm (longer lengths available on request)
-Standard pitch accuracy G5
-High rotational speed depending on the nominal diameter of the screw gear (up to 3,000 rpm for screw gears with a nominal diameter of up to 10 mm)
-Optional stainless steel design
-Optional surface treatment of spindle and nut
-Optional wipers
-Optional spindle bearing units
-Very low pitches from 1.0 mm, while ensuring high load capacity and axial rigidity
-Fine resolution for high positioning and repeat accuracy
-High axial rigidity
-Easy removal of nuts from the spindle for most sizes, if necessary
-Minimal torque requirements
-Increased robustness and reliability due to the absence of small components
-High load capacity and long service life
-Possibility of customer-specific designs

TECHNICAL DATA
-Nominal diameters from 8 to 125 mm
-Pitch from 1 to 5 mm
-Dynamic load rating up to 756 kN
-Static load rating up to 2,270 kN
-Acceleration up to 5,000 rad/s2

VERSIONS
-SVC cylindrical nut with axial play
-SVF flange nut with axial play
-BVC cylindrical nut with slip prevention
-BVF flange nut with slip prevention
-PVU cylindrical nut with preload
-PVK flange nut with preload

TYPICAL APPLICATIONS
-Medical technology
-Laboratory equipment
-Semiconductor industry
-Telescopes (heavy moving structures)
-Satellites
-Precision grinding mechanisms
-etc.

Catalog page / TYPE VARIETY
144 Roller screw drives with roller return
144 BVC range
145 FLRBU / BVC
146 SVC range
147 PVU range
148 PVK range
149 FLRBU Accessories for roller screw drives
151 Symbols and units

Download:
https://www.ihb.ch/media/H5T1FTG2/SKF_www.ihb.ch_e_CAT_Linearmotion_comp.pdf
Further downloads, documentation available on request
Source: SKF EWELLIX SCHAEFFLER