RVI 18 x 3.0 (3 starts)
Model / article: RVI 18 x 3.0 (3 starts)
RVI 18 x 3.0 (3 starts) is listed by Rollvis SA in Planetary roller screws. Published model data includes Helix angle: 3,04 °; Minimum external nut diameter D1: 38 mm. See the specification table for operating conditions and source evidence.
Published size/lead/start configurations, not complete ordering codes. Nut design, preload, accuracy grade, thread direction, seals, shaft length and end machining require configuration. Load capacities are not actuator thrust ratings.
Product overview
- Manufacturer / supplier
- Rollvis SA
- Series
- Rollvis RVI inverted roller screws
- Component type
- Planetary roller screws
- Source
- Open published source
Published pricing
No verified public price indexed for this model. Contact PartMeld for a supplier inquiry.
Published specifications
Values are shown as published. Conditions, rating basis and source evidence apply to each value.
Latest source observation: . Observation dates record evidence collection, not supplier re-verification.
| Specification | Published value | Conditions and source |
|---|---|---|
| Helix angleModel-level statement | 3,04 ° | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Helix angle: 3,04 ° | {} PDF p.50 / RVI 18 x 3.0 (3 starts) / Helix angle |
| Minimum external nut diameter D1Model-level statement | 38 mm | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Minimum external nut diameter D1: 38 mm | {'dimension_reference': 'catalog drawing; verify final configured drawing'} PDF p.50 / RVI 18 x 3.0 (3 starts) / Minimum external nut diameter D1 |
| Nominal nut diameter d00Model-level statement | 30 mm | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Nominal nut diameter d00: 30 mm | {'dimension_reference': 'catalog drawing; verify final configured drawing'} PDF p.50 / RVI 18 x 3.0 (3 starts) / Nominal nut diameter d00 |
| Maximum axial backlash (source unit unspecified)Model-level statement | 0,03Rating: maximum | extracted Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Max axial backlash: 0,03 (unit not printed) PDF p.50 / RVI 18 x 3.0 (3 starts) / Max axial backlash |
| Direct efficiencyModel-level statement | 0,86 1 | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Direct efficiency: 0,86 1 | {'direction': 'rotary to linear', 'rating_note': 'catalog estimate; preload and operating conditions affect actual efficiency'} PDF p.50 / RVI 18 x 3.0 (3 starts) / Direct efficiency |
| Dynamic axial load capacity CaModel-level statement | 39,1 kN | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Dynamic load capacity Ca: 39,1 kN | {'nut_type': 'single', 'rating_basis': 'rolling fatigue; use catalog load/life and preload equations, not a continuous thrust limit'} PDF p.50 / RVI 18 x 3.0 (3 starts) / Dynamic load capacity Ca |
| External screw diameter d1Model-level statement | 18,30 mm | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | External screw diameter d1: 18,30 mm | {'dimension_reference': 'catalog drawing; verify final configured drawing'} PDF p.50 / RVI 18 x 3.0 (3 starts) / External screw diameter d1 |
| Indirect efficiencyModel-level statement | 0,83 1 | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Indirect efficiency: 0,83 1 | {'direction': 'linear to rotary', 'rating_note': 'catalog estimate; not proof of system backdrivability'} PDF p.50 / RVI 18 x 3.0 (3 starts) / Indirect efficiency |
| Lead (travel per revolution)Model-level statement | 3,0 mm/rev | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Lead P (travel per revolution): 3,0 mm/rev | {} PDF p.50 / RVI 18 x 3.0 (3 starts) / Lead P (travel per revolution) |
| Nominal screw diameter d0Model-level statement | 18,00 mm | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Nominal screw diameter d0: 18,00 mm | {'dimension_reference': 'catalog drawing; verify final configured drawing'} PDF p.50 / RVI 18 x 3.0 (3 starts) / Nominal screw diameter d0 |
| Screw reference diameter DModel-level statement | 18 mm | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Reference diameter D: 18 mm | {} PDF p.50 / RVI 18 x 3.0 (3 starts) / Reference diameter D |
| Rigidity factor FkModel-level statement | 46,9 N^(2/3)/µm | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Rigidity factor Fk: 46,9 N^(2/3)/µm | {'nut_type': 'single', 'definition': 'nonlinear rigidity factor, not assembled axial stiffness'} PDF p.50 / RVI 18 x 3.0 (3 starts) / Rigidity factor Fk |
| Thread root diameter d2Model-level statement | 17,49 mm | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Thread root diameter d2: 17,49 mm | {'dimension_reference': 'catalog drawing; verify final configured drawing'} PDF p.50 / RVI 18 x 3.0 (3 starts) / Thread root diameter d2 |
| Static axial load capacity C0aModel-level statement | 74,9 kN | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Static load capacity C0a: 74,9 kN | {'nut_type': 'single'} PDF p.50 / RVI 18 x 3.0 (3 starts) / Static load capacity C0a |
| Thread startsModel-level statement | 3 1 | rule validated Operating conditions
Source evidenceRVI 18 x 3.0 (3 starts) | Number of starts N: 3 1 | {} PDF p.50 / RVI 18 x 3.0 (3 starts) / Number of starts N |
Technical documents and resources
Confirm the exact configuration, price, availability and operating conditions with the supplier before ordering.