Rollvis RVI Inverted Planetary Roller Screws
Vendor: Rollvis
Product: RVI
Rollvis (Switzerland) RVI inverted planetary roller screws keep the roller array inside the nut tube while a smooth screw shaft extends outward, delivering precise linear motion in a compact, small-lead, lightweight package; shaft diameters 8-100 mm, leads 1-16 mm, timing rings built into the shaft and a highly customizable nut that can act as a push tube, cutting actuator part count and energy use. High load rating and long service life suit robotic arm assemblies, spot welding and sheet-metal brake presses.
| Lead | 1-16 mm |
| Design | inverted: rollers inside nut, smooth output shaft, timing rings in shaft, customizable nut as push tube |
| Models | RVI 10.5 - RVI 60 nominal diameters |
| Efficiency | direct 71-87%, indirect 58-87% |
| Axial Backlash | 0.02-0.05 mm |
| Shaft Diameter | 8-100 mm |
| Dynamic Load Ca | 13.4-346.6 kN |
| Static Load C0a | 20.8-727.9 kN |
| Axial Stiffness Fk | 32.6-128.2 N/um |