![[THK] — SRG-XA/XLA/XC/XLC Roller Retainer LM Guide Block (Super High Rigidity, 15~30)](https://img.prosourcemro.com/2026/05/001-794-1024x821.png)
LM Guides
THK
[THK] — SRG-XA/XLA/XC/XLC Roller Retainer LM Guide Block (Super High Rigidity, 15~30)
Family ID: THK-SRG-XA-XC
Super high rigidity Roller Retainer type LM Guide. XA type: flange tapped / XC type: mountable from top or bottom. High rigidity rollers with length ≥1.5× roller diameter for maximum rigidity. Roller retainer prevents skew, reduces rolling resistance variation. No inter-roller friction — improved grease retention for long maintenance-free operation.
7 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| SRG-15XA | SRG 15XA LM Block H24×W47×L69.2mm | THK | Type: Roller Retainer LM Guide Block | Series: SRG | Model: SRG 15XA | Height M: 24 mm | Width W: 47 mm | Length L: 69.2 mm | Max Rail Length: 3000 mm | Dynamic Load C: 11.3 kN | Static Load C0: 25.8 kN | Rolling Element: Roller (length ≥1.5× dia.) | Retainer: Yes | Mount: Flange Tapped | Brand: THK | ||
| SRG-20XA | SRG 20XA LM Block H30×W63×L86.2mm | THK | Type: Roller Retainer LM Guide Block | Series: SRG | Model: SRG 20XA | Height M: 30 mm | Width W: 63 mm | Length L: 86.2 mm | Max Rail Length: 3000 mm | Dynamic Load C: 21 kN | Static Load C0: 46.9 kN | Rolling Element: Roller (length ≥1.5× dia.) | Retainer: Yes | Mount: Flange Tapped | Brand: THK | ||
| SRG-20XLA | SRG 20XLA LM Block H30×W63×L106.2mm | THK | Type: Roller Retainer LM Guide Block | Series: SRG | Model: SRG 20XLA | Height M: 30 mm | Width W: 63 mm | Length L: 106.2 mm | Max Rail Length: 3000 mm | Dynamic Load C: 26.7 kN | Static Load C0: 63.8 kN | Rolling Element: Roller (length ≥1.5× dia.) | Retainer: Yes | Mount: Flange | Brand: THK | ||
| SRG-25XC | SRG 25XC LM Block H36×W70×L95.5mm | THK | Type: Roller Retainer LM Guide Block | Series: SRG | Model: SRG 25XC | Height M: 36 mm | Width W: 70 mm | Length L: 95.5 mm | Max Rail Length: 3000 mm | Dynamic Load C: 27.9 kN | Static Load C0: 57.5 kN | Rolling Element: Roller (length ≥1.5× dia.) | Retainer: Yes | Mount: Flange Top or Bottom | Brand: THK | ||
| SRG-25XLC | SRG 25XLC LM Block H36×W70×L115.1mm | THK | Type: Roller Retainer LM Guide Block | Series: SRG | Model: SRG 25XLC | Height M: 36 mm | Width W: 70 mm | Length L: 115.1 mm | Max Rail Length: 3000 mm | Dynamic Load C: 34.2 kN | Static Load C0: 75 kN | Rolling Element: Roller (length ≥1.5× dia.) | Retainer: Yes | Mount: Flange | Brand: THK | ||
| SRG-30XC | SRG 30XC LM Block H42×W90×L111mm | THK | Type: Roller Retainer LM Guide Block | Series: SRG | Model: SRG 30XC | Height M: 42 mm | Width W: 90 mm | Length L: 111 mm | Max Rail Length: 3000 mm | Dynamic Load C: 39.3 kN | Static Load C0: 82.5 kN | Rolling Element: Roller (length ≥1.5× dia.) | Retainer: Yes | Mount: Flange Top or Bottom | Brand: THK | ||
| SRG-30XLC | SRG 30XLC LM Block H42×W90×L135mm | THK | Type: Roller Retainer LM Guide Block | Series: SRG | Model: SRG 30XLC | Height M: 42 mm | Width W: 90 mm | Length L: 135 mm | Max Rail Length: 3000 mm | Dynamic Load C: 48.3 kN | Static Load C0: 108 kN | Rolling Element: Roller (length ≥1.5× dia.) | Retainer: Yes | Mount: Flange | Brand: THK |
