![[THK] — NSR-TBC Self-aligning LM Guide Block (Cylindrical Spline, Through-hole Flange)](https://img.prosourcemro.com/2026/05/001-782-1024x772.png)
LM Guides
THK
[THK] — NSR-TBC Self-aligning LM Guide Block (Cylindrical Spline, Through-hole Flange)
Family ID: THK-NSR-TBC
Self-aligning type LM Guide. Unique cylindrical spline outer case structure (cast iron, 120° cut) for high self-alignment and self-correction. Easy alignment even with poor 2-axis mounting accuracy. Through-hole flange — bottom mounting.
6 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| NSR-20TBC | NSR 20TBC LM Block H40×W70×L67mm | THK | Type: Self-aligning LM Guide Block | Series: NSR | Model: NSR 20TBC | Height M: 40 mm | Width W: 70 mm | Length L: 67 mm | Max Rail Length: 2200 mm | Dynamic Load C: 9.41 kN | Static Load C0: 18.6 kN | Structure: Cylindrical Spline Outer Case (cast iron, 120° cut) | Mount: Through-hole Flange (bottom) | Brand: THK | ||
| NSR-25TBC | NSR 25TBC LM Block H50×W90×L78mm | THK | Type: Self-aligning LM Guide Block | Series: NSR | Model: NSR 25TBC | Height M: 50 mm | Width W: 90 mm | Length L: 78 mm | Max Rail Length: 3000 mm | Dynamic Load C: 14.9 kN | Static Load C0: 26.7 kN | Structure: Cylindrical Spline Outer Case (cast iron, 120° cut) | Mount: Through-hole Flange (bottom) | Brand: THK | ||
| NSR-30TBC | NSR 30TBC LM Block H60×W100×L90mm | THK | Type: Self-aligning LM Guide Block | Series: NSR | Model: NSR 30TBC | Height M: 60 mm | Width W: 100 mm | Length L: 90 mm | Max Rail Length: 3000 mm | Dynamic Load C: 22.5 kN | Static Load C0: 38.3 kN | Structure: Cylindrical Spline Outer Case (cast iron, 120° cut) | Mount: Through-hole Flange (bottom) | Brand: THK | ||
| NSR-40TBC | NSR 40TBC LM Block H75×W120×L110mm | THK | Type: Self-aligning LM Guide Block | Series: NSR | Model: NSR 40TBC | Height M: 75 mm | Width W: 120 mm | Length L: 110 mm | Max Rail Length: 3000 mm | Dynamic Load C: 37.1 kN | Static Load C0: 62.2 kN | Structure: Cylindrical Spline Outer Case (cast iron, 120° cut) | Mount: Through-hole Flange (bottom) | Brand: THK | ||
| NSR-50TBC | NSR 50TBC LM Block H82×W140×L123mm | THK | Type: Self-aligning LM Guide Block | Series: NSR | Model: NSR 50TBC | Height M: 82 mm | Width W: 140 mm | Length L: 123 mm | Max Rail Length: 3000 mm | Dynamic Load C: 55.1 kN | Static Load C0: 87.4 kN | Structure: Cylindrical Spline Outer Case (cast iron, 120° cut) | Mount: Through-hole Flange (bottom) | Brand: THK | ||
| NSR-70TBC | NSR 70TBC LM Block H105×W175×L150mm | THK | Type: Self-aligning LM Guide Block | Series: NSR | Model: NSR 70TBC | Height M: 105 mm | Width W: 175 mm | Length L: 150 mm | Max Rail Length: 3000 mm | Dynamic Load C: 90.8 kN | Static Load C0: 152 kN | Structure: Cylindrical Spline Outer Case (cast iron, 120° cut) | Mount: Through-hole Flange (bottom) | Brand: THK |
