2-stage synchronously extending telescopic screw drive as glide screw drive version or as ball screw drive version.
As proven “N” design version – “Lifting screw” - or as non-rotating variant of the “VK” design, optionally with safety nut
and integrated limit switches.
Standardised connecting options on request for gear, toothed belt or for the direct connection of a drive motor by means of
a motor adapter flange or coupling.
The different variants can be selected on the basis of the product code.
General technical data:
- The intelligent drive unit ensures continuous torque and clearance throughout the entire stroke.
- Reduced friction values due to Teflon-coated aluminium materials (glide screw version)
- The safety nuts for the glide screw version may optionally be set for fracture or wear.
- For the ball screw version, nuts from the standard product range are used, thus ensuring availability of stock goods and
quick replacement.
| Max. stroke power with ball drive: | 3740 N |
| Max. stroke power with glide screw drive:1) | 950 N |
| Maximum stroke length: | up to 1100mm > 1100mm on request |
| Stroke per revolution of the drive shaft: | 10mm Up to 100mm on request |
| Axial clearance with ball screw drive: | 0.1mm (standard) <0.1mm on request |
| Axial clearance with glide screw drive: | max. 0.4mm <0.4mm on request |
| Accuracy classes: | T7: 52μm/300mm 2) T9: 130μm/300mm T10: 210μm/300mm |
| Efficiency with ball screw drive: | 0,76 |
| Efficiency with glide screw drive: | 0.21 (version: 10mm stroke per revolution) 0.68 (version: 100mm stroke per revolution) |
| Idling torque with ball screw drive: | 0,054 Nm |
| Idling torque with glide screw drive: | 0,133 Nm |
| Maximum admissible drive torque: | 8,2 Nm |
1) Depending on the pv value (load x speed)
2) Only available for ball screw version
NEFF Gewindetriebe GmbH
Karl-Benz-Straße 24
D-71093 Weil im Schönbuch
Fon. 07157 53890-0
info[at]neff-gt.de
