Planetary Roller Screw
RVD Differential Planetary Roller Screw
Series / Model RVD
Differential planetary roller screw for extremely fine lead, compact precision actuation and high stiffness.
- Source catalog
- Series-Planetary Roller Screw.pdf
- Catalog pages
- 58–63
Product information
Overview
The RVD series uses a differential planetary roller screw arrangement to provide very fine linear travel per screw revolution. The supplied catalog positions the series for high-precision applications and notes differential leads down to 0.02 mm.
The model matrix below validates the data structure with selected catalog rows across 12, 15 and 18 mm nominal diameters.
Advantages
- Differential lead down to 0.02 mm
- Fine positioning resolution
- High load capability for size
- Cataloged stiffness data
Applications
- Precision optical positioning
- Semiconductor equipment
- Metrology systems
- Fine-feed mechanisms
Structured product data
Specifications
Series
- Design
- Differential planetary roller screw
- Minimum catalog lead
- 0.02 mm
- Catalog size groups
- 12 / 15 / 18 through 36 / 39
- Primary selection data
- Lead, load, stiffness and diameters
Validated dimensions
- Nominal diameters sampled
- 12 / 15 / 18 mm
- Lead range sampled
- 0.05–0.25 mm
- Load ratings
- Ca / C0a
- Stiffness coefficient
- Fk
Catalog reference
Technical Drawing
Reference image from the supplied catalog. Confirm final dimensions against the downloadable PDF before ordering.
Series selection
Available Models
RVD models — validated sample
| Model | Lead Pmm | CakN | C0akN | FkN/μm | Screw OD d1mm | Nominal d0mm | Root d2mm | Nut min. D1mm |
|---|---|---|---|---|---|---|---|---|
| RVD 12 × 0.05 | 0.05 | 9.0 | 11.1 | 27.4 | 12.14 | 12 | 11.82 | 26 |
| RVD 12 × 0.10 | 0.10 | 14.2 | 22.2 | 43.5 | 12.14 | 12 | 11.82 | 26 |
| RVD 15 × 0.10 | 0.10 | 19.4 | 32.6 | 51.1 | 15.14 | 15 | 14.82 | 32 |
| RVD 18 × 0.10 | 0.10 | 29.7 | 60.3 | 67.4 | 18.14 | 18 | 17.82 | 36 |
| RVD 18 × 0.25 | 0.25 | 37.8 | 60.9 | 41.7 | 18.34 | 18 | 17.53 | 36 |
Technical documents
Downloads
Custom requirements
Discuss your applicationNeed another diameter, lead or configuration?
Series Motion can review nominal diameter, differential lead, required stroke, stiffness and interface dimensions.
Product inquiry