THK LMH16LUU Linear Bushing (Long Type, Oval Cut Flange)
Product Overview: THK LMH16LUU is a long‑type, oval‑cut flange linear bushing with double‑lip seals (UU), engineered for smooth linear motion with excellent moment load resistance. It features a compact oval flange for lower center height and direct bolt‑on installation, ideal for space‑constrained light‑to‑medium load linear systems.
THK LMH16LUU is a long‑type, oval‑cut flange linear bushing with double‑lip seals (UU), engineered for smooth linear motion with excellent moment load resistance. It features a compact oval flange for lower center height and direct bolt‑on installation, ideal for space‑constrained light‑to‑medium load linear systems.
Official Specifications
| Parameter | Value |
|---|---|
| Inscribed Bore Diameter (dr) | 16 mm (0 / −0.012 mm) |
| Outer Diameter (D) | 28 mm (0 / −0.019 mm) |
| Overall Length (L) | 70 mm |
| Flange Diameter (D₁) | 48 mm |
| Flange Width (K) | 34 mm |
| Mounting Hole (d₁×d₂×h) | 4.5 mm × 8.0 mm × 4.4 mm |
| Ball Rows | 5 rows |
| Basic Dynamic Load Rating (C) | 1230 N |
| Basic Static Load Rating (C₀) | 2350 N |
| Permissible Static Moment (Mo) | 12.30 N·m |
| Mass | 182 g |
| Retainer Material | Synthetic resin |
| Seal Type | UU (double‑lip seals, both ends) |
| Outer Cylinder Material | Bearing steel (SUJ2) |
| Lubrication | Pre‑lubricated with anti‑rust oil |
| Operating Temperature | −15 °C to 80 °C |
| Accuracy Grade | Normal grade |
| Flange Perpendicularity | 15 μm |
| Max Eccentricity | 15 μm |
| Radial Clearance Tolerance | −7 μm |
Key Features
- Oval‑cut flange design enables a lower center height than square‑flange models, supporting compact machine layouts.
- Long‑type construction with dual retainers delivers superior moment load capacity and running stability.
- UU double‑lip seals provide reliable protection against dust and contaminants for harsh industrial environments.
- Synthetic resin retainer ensures quiet, low‑friction linear movement.
- Optimized ball raceway alignment: two rows support loads from the flattened flange side, enhancing service life.
- Compatible with hardened precision LM shafts (recommended hardness ≥58 HRC).
Applications
Suitable for automation equipment, packaging machinery, measuring instruments, 3D printers, semiconductor manufacturing equipment, and light‑to‑medium load linear motion systems requiring high‑rigidity, moment‑resistant guidance with compact installation.
