RG Series
RG Series High Rigidity Roller Type Linear Guideway
- Block Type
- Square (H, L, S), Flange (W, F)
- Model Size
- 15 - 65
- Load Type
- Heavy, Super Heavy
- Dynamic Load Rating
- 11.3 [kN] - 275.3 [kN]
The RG series features a roller as the rolling element instead of steel balls. The RG series is designed with a 45-degree angle of contact. Elastic deformation of the linear contact surface, during loading, is greatly reduced thereby offering greater rigidity and higher load capacities in all 4 load directions. The RG series linear guideway offers high performance for high-precision manufacturing and can achieve a longer service life than traditional ball bearing linear guideways.
RG is interchangeable with the QR Series: QR blocks add SynchMotion quiet running on the same roller rail. View QR Series →
Applications
- CNC machining centers
- Heavy duty cutting machines
- CNC grinding machines
- Injection molding machines
- Electric discharge machines
- Wire cutting machines
- Plano millers
Variants
H is the square block, W the flange block for heavy moment loads; L is a low-profile square (same assembled height as the flange type in each size), and S/F are ultra-low square and flange blocks offered in sizes 35 and 45. The letters after the size are load type (C heavy, H super heavy) and block mounting (A from the top, C from top or bottom).
| Part Number | Block Type | Model Size (mm) | Load Type | Dynamic Load Rating (kN) | Configure |
|---|---|---|---|---|---|
| RGH15CA | Square | 15 | Heavy | 11.3 | Configure ↗ |
| RGH20CA | Square | 20 | Heavy | 21.3 | Configure ↗ |
| RGH20HA | Square | 20 | Super Heavy | 26.9 | Configure ↗ |
| RGH25CA | Square | 25 | Heavy | 27.7 | Configure ↗ |
| RGH25HA | Square | 25 | Super Heavy | 33.9 | Configure ↗ |
| RGH30CA | Square | 30 | Heavy | 39.1 | Configure ↗ |
| RGH30HA | Square | 30 | Super Heavy | 48.1 | Configure ↗ |
| RGH35CA | Square | 35 | Heavy | 57.9 | Configure ↗ |
| RGH35HA | Square | 35 | Super Heavy | 73.1 | Configure ↗ |
| RGH45CA | Square | 45 | Heavy | 92.6 | Configure ↗ |
| RGH45HA | Square | 45 | Super Heavy | 116 | Configure ↗ |
| RGH55CA | Square | 55 | Heavy | 130.5 | Configure ↗ |
| RGH55HA | Square | 55 | Super Heavy | 167.8 | Configure ↗ |
| RGH65CA | Square | 65 | Heavy | 213 | Configure ↗ |
| RGH65HA | Square | 65 | Super Heavy | 275.3 | Configure ↗ |
| RGL15CA | Square (low) | 15 | Heavy | 11.3 | Configure ↗ |
| RGL20CA | Square (low) | 20 | Heavy | 21.3 | Configure ↗ |
| RGL20HA | Square (low) | 20 | Super Heavy | 26.9 | Configure ↗ |
| RGL25CA | Square (low) | 25 | Heavy | 27.7 | Configure ↗ |
| RGL25HA | Square (low) | 25 | Super Heavy | 33.9 | Configure ↗ |
| RGL30CA | Square (low) | 30 | Heavy | 39.1 | Configure ↗ |
| RGL30HA | Square (low) | 30 | Super Heavy | 48.1 | Configure ↗ |
| RGL35CA | Square (low) | 35 | Heavy | 57.9 | Configure ↗ |
| RGL35HA | Square (low) | 35 | Super Heavy | 73.1 | Configure ↗ |
| RGL45CA | Square (low) | 45 | Heavy | 92.6 | Configure ↗ |
| RGL45HA | Square (low) | 45 | Super Heavy | 116 | Configure ↗ |
| RGL55CA | Square (low) | 55 | Heavy | 130.5 | Configure ↗ |
| RGL55HA | Square (low) | 55 | Super Heavy | 167.8 | Configure ↗ |
| RGW15CC | Flange | 15 | Heavy | 11.3 | Configure ↗ |
| RGW20CC | Flange | 20 | Heavy | 21.3 | Configure ↗ |
| RGW20HC | Flange | 20 | Super Heavy | 26.9 | Configure ↗ |
| RGW25CC | Flange | 25 | Heavy | 27.7 | Configure ↗ |
| RGW25HC | Flange | 25 | Super Heavy | 33.9 | Configure ↗ |
| RGW30CC | Flange | 30 | Heavy | 39.1 | Configure ↗ |
| RGW30HC | Flange | 30 | Super Heavy | 48.1 | Configure ↗ |
| RGW35CC | Flange | 35 | Heavy | 57.9 | Configure ↗ |
| RGW35HC | Flange | 35 | Super Heavy | 73.1 | Configure ↗ |
| RGW45CC | Flange | 45 | Heavy | 92.6 | Configure ↗ |
| RGW45HC | Flange | 45 | Super Heavy | 116 | Configure ↗ |
| RGW55CC | Flange | 55 | Heavy | 130.5 | Configure ↗ |
| RGW55HC | Flange | 55 | Super Heavy | 167.8 | Configure ↗ |
| RGW65CC | Flange | 65 | Heavy | 213 | Configure ↗ |
| RGW65HC | Flange | 65 | Super Heavy | 275.3 | Configure ↗ |
| RGS35CA | Square (ultra low) | 35 | Heavy | 57.9 | Configure ↗ |
| RGS35HA | Square (ultra low) | 35 | Super Heavy | 73.1 | Configure ↗ |
| RGS45CA | Square (ultra low) | 45 | Heavy | 92.6 | Configure ↗ |
| RGS45HA | Square (ultra low) | 45 | Super Heavy | 116 | Configure ↗ |
| RGF35CC | Flange (ultra low) | 35 | Heavy | 57.9 | Configure ↗ |
| RGF35HC | Flange (ultra low) | 35 | Super Heavy | 73.1 | Configure ↗ |
| RGF45CC | Flange (ultra low) | 45 | Heavy | 92.6 | Configure ↗ |
| RGF45HC | Flange (ultra low) | 45 | Super Heavy | 116 | Configure ↗ |
Part numbers & options
How a part number reads
RG W 35 C C E 2 R 1640 E ZA P II + KK/E2+RC (spaces between decoded positions)
- RG
- Series
- W
- Block type — W flange · H square · L square (low) · S square (ultra low) · F flange (ultra low)
- 35
- Model size — 15, 20, 25, 30, 35, 45, 55, 65
- C
- Load type — C heavy · H super heavy
- C
- Block mounting — A from top · C top or bottom
- E
- Block class — E special block · none standard block
- 2
- Number of blocks per rail
- R
- Rail mounting — R from top · T from bottom
- 1640
- Rail length (mm)
- E
- Rail class — E special rail · none standard rail
- ZA
- Preload code — Z0 light · ZA medium · ZB heavy
- P
- Precision code — H · P · SP · UP
- II
- Rails per matched set — Roman numerals
- KK
- Dust protection — ZZ end seal, bottom seal, scraper · DD double seals, bottom seal · KK double seals, bottom seal, scraper · none standard (end seal, bottom seal)
- E2
- Self-lubricant — not available for RGS/RGF
- RC
- Reinforced cap
The configurator assembles this number for you, with drawings and 3D CAD. Configure ↗
Accuracy classes
Four classes cover the RG range; choose by the accuracy the machine demands. Interchangeable blocks and rails hold H and P class only.
- H High — The working class for general machine building.
- P Precision — Tighter height and width tolerance for precision equipment; the ceiling for interchangeable sets.
- SP Super Precision — For machine tools where running parallelism drives finish quality.
- UP Ultra Precision — The tightest class, for grinding-level accuracy.
Preload
Oversized rollers set a negative clearance between raceway and rollers. Three standard preloads; on smaller sizes stay at ZA or lighter so over-preload does not shorten life.
- Z0 Light preload — 0.02C-0.04C. A set load direction, low impact, modest precision demands.
- ZA Medium preload — 0.07C-0.09C. Where high rigidity and high precision are required.
- ZB Heavy preload — 0.12C-0.14C. Super high rigidity under vibration and impact.
Dust protection
Standard blocks ship with end seal and bottom seal; add a code for harsher environments. The scraper clears high-temperature chips and larger debris, double seals wipe fine contamination completely.
- Standard (no symbol) — End seal plus bottom seal, the baseline protection.
- ZZ End seal, bottom seal and scraper — Adds the scraper for hot chips around cutting machines.
- DD Double seals and bottom seal — Doubled wiping for fine dust without the scraper.
- KK Double seals, bottom seal and scraper — The full stack for grinding and heavy chip environments; extends overall block length per the catalog table.
How buying works
Spec it in the configurator: drawings, 3D CAD, and a quote to follow.
HIWIN series are configured to your application, not bought off the shelf. Start from your loads and speeds if you are still choosing a size.
Rather talk it through? Request a quote from an application engineer.