![[THK] — NRS-RX/LRX/SLRX/R/LR LM Guide Block (Full Ball, Super Heavy Load, 4-Direction, Narrow)](https://img.prosourcemro.com/2026/05/001-761-1024x747.png)
LM Guides
THK
[THK] — NRS-RX/LRX/SLRX/R/LR LM Guide Block (Full Ball, Super Heavy Load, 4-Direction, Narrow)
Family ID: THK-NRS-RX
Super heavy load full ball type LM Guide for machine tools. 4-direction equal load type. Minimum block width (W) with tapped holes. Deep groove raceway machining for enhanced rigidity, vibration/shock resistance and damping. NRS-X = 4-direction type; NR-X = radial type (same dimensions).
24 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| NRS25RX | NRS25RX LM Block H31×W50×L82.8mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS25RX | Height M: 31 mm | Width W: 50 mm | Length L: 82.8 mm | Max Rail Length: 3000 mm | Dynamic Load C: 28.4 kN | Static Load C0: 52.2 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS25LRX | NRS25LRX LM Block H31×W50×L102mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS25LRX | Height M: 31 mm | Width W: 50 mm | Length L: 102 mm | Max Rail Length: 3000 mm | Dynamic Load C: 34.7 kN | Static Load C0: 69.6 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NR25SLRX | NR25SLRX LM Block H31×W50×L170.3mm | THK | Type: LM Guide Block | Series: NRS | Model: NR25SLRX | Height M: 31 mm | Width W: 50 mm | Length L: 170.3 mm | Max Rail Length: 3000 mm | Dynamic Load C: 54.4 kN | Static Load C0: 132.2 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS30RX | NRS30RX LM Block H38×W60×L98mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS30RX | Height M: 38 mm | Width W: 60 mm | Length L: 98 mm | Max Rail Length: 3000 mm | Dynamic Load C: 41.9 kN | Static Load C0: 75.2 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS30LRX | NRS30LRX LM Block H38×W60×L120.5mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS30LRX | Height M: 38 mm | Width W: 60 mm | Length L: 120.5 mm | Max Rail Length: 3000 mm | Dynamic Load C: 51.2 kN | Static Load C0: 100.2 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NR30SLRX | NR30SLRX LM Block H38×W60×L204.6mm | THK | Type: LM Guide Block | Series: NRS | Model: NR30SLRX | Height M: 38 mm | Width W: 60 mm | Length L: 204.6 mm | Max Rail Length: 3000 mm | Dynamic Load C: 80.3 kN | Static Load C0: 190.4 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS35RX | NRS35RX LM Block H44×W70×L109.5mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS35RX | Height M: 44 mm | Width W: 70 mm | Length L: 109.5 mm | Max Rail Length: 3000 mm | Dynamic Load C: 55.5 kN | Static Load C0: 95.5 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS35LRX | NRS35LRX LM Block H44×W70×L135mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS35LRX | Height M: 44 mm | Width W: 70 mm | Length L: 135 mm | Max Rail Length: 3000 mm | Dynamic Load C: 68.6 kN | Static Load C0: 129.5 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NR35SLRX | NR35SLRX LM Block H44×W70×L238.9mm | THK | Type: LM Guide Block | Series: NRS | Model: NR35SLRX | Height M: 44 mm | Width W: 70 mm | Length L: 238.9 mm | Max Rail Length: 3000 mm | Dynamic Load C: 111.5 kN | Static Load C0: 259.1 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS45RX | NRS45RX LM Block H52×W86×L138.2mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS45RX | Height M: 52 mm | Width W: 86 mm | Length L: 138.2 mm | Max Rail Length: 3090 mm | Dynamic Load C: 84.4 kN | Static Load C0: 151.4 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS45LRX | NRS45LRX LM Block H52×W86×L171mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS45LRX | Height M: 52 mm | Width W: 86 mm | Length L: 171 mm | Max Rail Length: 3090 mm | Dynamic Load C: 101.1 kN | Static Load C0: 195.9 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NR45SLRX | NR45SLRX LM Block H52×W86×L271.4mm | THK | Type: LM Guide Block | Series: NRS | Model: NR45SLRX | Height M: 52 mm | Width W: 86 mm | Length L: 271.4 mm | Max Rail Length: 3090 mm | Dynamic Load C: 148.3 kN | Static Load C0: 338.4 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS55RX | NRS55RX LM Block H63×W100×L163.3mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS55RX | Height M: 63 mm | Width W: 100 mm | Length L: 163.3 mm | Max Rail Length: 3060 mm | Dynamic Load C: 108.7 kN | Static Load C0: 191.6 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS55LRX | NRS55LRX LM Block H63×W100×L200.5mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS55LRX | Height M: 63 mm | Width W: 100 mm | Length L: 200.5 mm | Max Rail Length: 3060 mm | Dynamic Load C: 134.1 kN | Static Load C0: 259.3 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NR55SLRX | NR55SLRX LM Block H63×W100×L400.5mm | THK | Type: LM Guide Block | Series: NRS | Model: NR55SLRX | Height M: 63 mm | Width W: 100 mm | Length L: 400.5 mm | Max Rail Length: 3060 mm | Dynamic Load C: 234.3 kN | Static Load C0: 574.9 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS65RX | NRS65RX LM Block H75×W126×L186mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS65RX | Height M: 75 mm | Width W: 126 mm | Length L: 186 mm | Max Rail Length: 3000 mm | Dynamic Load C: 159.8 kN | Static Load C0: 269.4 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS65LRX | NRS65LRX LM Block H75×W126×L246mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS65LRX | Height M: 75 mm | Width W: 126 mm | Length L: 246 mm | Max Rail Length: 3000 mm | Dynamic Load C: 206 kN | Static Load C0: 387.2 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NR65SLRX | NR65SLRX LM Block H75×W126×L422.2mm | THK | Type: LM Guide Block | Series: NRS | Model: NR65SLRX | Height M: 75 mm | Width W: 126 mm | Length L: 422.2 mm | Max Rail Length: 3000 mm | Dynamic Load C: 324.1 kN | Static Load C0: 740.8 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS75R | NRS75R LM Block H83×W145×L218mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS75R | Height M: 83 mm | Width W: 145 mm | Length L: 218 mm | Max Rail Length: 3000 mm | Dynamic Load C: 212 kN | Static Load C0: 431 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS75LR | NRS75LR LM Block H83×W145×L274mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS75LR | Height M: 83 mm | Width W: 145 mm | Length L: 274 mm | Max Rail Length: 3000 mm | Dynamic Load C: 278 kN | Static Load C0: 566 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS85R | NRS85R LM Block H90×W156×L246.7mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS85R | Height M: 90 mm | Width W: 156 mm | Length L: 246.7 mm | Max Rail Length: 3000 mm | Dynamic Load C: 264 kN | Static Load C0: 531 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS85LR | NRS85LR LM Block H90×W156×L302.8mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS85LR | Height M: 90 mm | Width W: 156 mm | Length L: 302.8 mm | Max Rail Length: 3000 mm | Dynamic Load C: 342 kN | Static Load C0: 687 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS100R | NRS100R LM Block H105×W200×L286.2mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS100R | Height M: 105 mm | Width W: 200 mm | Length L: 286.2 mm | Max Rail Length: 3000 mm | Dynamic Load C: 376 kN | Static Load C0: 737 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK | ||
| NRS100LR | NRS100LR LM Block H105×W200×L326.2mm | THK | Type: LM Guide Block | Series: NRS | Model: NRS100LR | Height M: 105 mm | Width W: 200 mm | Length L: 326.2 mm | Max Rail Length: 3000 mm | Dynamic Load C: 470 kN | Static Load C0: 920 kN | Structure: Full Ball Deep Groove | Load Type: 4-Direction Equal | Application: Super Heavy Load Machine Tool | Brand: THK |
