INA Linear Roller Carriage RWU25-E-H-V3-G1
The RWU25-E-H-V3-G1 is a high, narrow linear recirculating roller bearing carriage from INA (Schaeffler Group), part of the RWU25 series. It features a standard E-type roller system, four-row full-complement roller design, medium preload (V3), and ultra-high precision (G1 accuracy class). Engineered for applications demanding maximum rigidity, ultra-precise positioning, and moderate load capacity in compact linear motion systems.
The RWU25-E-H-V3-G1 is a high, narrow linear recirculating roller bearing carriage from INA (Schaeffler Group), part of the RWU25 series. It features a standard E-type roller system, four-row full-complement roller design, medium preload (V3), and ultra-high precision (G1 accuracy class). Engineered for applications demanding maximum rigidity, ultra-precise positioning, and moderate load capacity in compact linear motion systems.
Core Specifications (Schaeffler Official Data)
| Parameter | Value | Unit |
|---|---|---|
| Part Number | RWU25-E-H-V3-G1 | — |
| Series | RWU25 | — |
| Rail Width (b) | 23 | mm |
| Carriage Height (H) | 40 | mm |
| Carriage Width (B) | 48 | mm |
| Carriage Length (L) | 91 | mm |
| Weight | 0.65 | kg |
| Dynamic Load Rating (C) | 28,000 | N |
| Static Load Rating (C₀) | 65,000 | N |
| Static Moment Rating (M₀ₓ) | 350 | N·m |
| Static Moment Rating (M₀ᵧ) | 760 | N·m |
| Static Moment Rating (M₀z) | 680 | N·m |
| Preload Class | V3 (Medium Preload) | — |
| Accuracy Class | G1 (Ultra-High Precision) | — |
| Roller Configuration | Four-row, full-complement recirculating rollers | — |
| Carriage Type | E-H: Standard E-version, high, narrow carriage | — |
| Lubrication | Oil or grease lubrication | — |
| Mounting Bolts | M6 (grade 12.9) | — |
| Temperature Range | -10 to +80 | °C |
| Sealing | End seals + longitudinal sealing strips | — |
Key Features & Applications
- High, Narrow Profile (H): Compact, height-optimized design (40 mm) with reduced width (48 mm), ideal for space-constrained installations requiring vertical rigidity.
- Ultra-High Precision (G1): Premium accuracy class (highest standard for RWU series) ensures minimal positional error, exceptional straightness, and consistent repeatability for ultra-precision machinery.
- Medium Preload (V3): Eliminates internal clearance, boosts rigidity, and enhances positioning stability under varying loads.
- Four-Row Full-Complement Rollers: Delivers superior static/dynamic load ratings and moment resistance compared to ball-type carriages, suitable for moderate-heavy duty tasks.
- Smooth & Stable Motion: Precision-ground raceways ensure low friction, smooth travel, and high operational consistency.
- Wide Compatibility: Matches all RWU25-series linear guide rails; widely used in semiconductor manufacturing equipment, high-precision measuring instruments, optical systems, and ultra-precise machine tools.
Suffix Explanation
- E: Standard linear recirculating roller bearing system.
- H: High, narrow carriage design.
- V3: Medium preload class.
- G1: Ultra-high accuracy class (precision grade 1).
