THK SC12UU Linear Ball Bearing (LM Case Unit)
THK SC12UU is a standard linear ball bearing unit (built‑in case type) integrating a high‑precision linear bushing into a compact aluminum housing, designed for smooth, low‑friction linear motion.
THK SC12UU is a standard linear ball bearing unit (built‑in case type) integrating a high‑precision linear bushing into a compact aluminum housing, designed for smooth, low‑friction linear motion.
Official Specifications
- Inscribed Bore Diameter (dr): 12 mm
- Overall Length (L): 36 mm
- Housing Dimensions: Height (M) 29 mm, Width (W) 42 mm
- Basic Load Ratings: Dynamic (C) 412 N; Static (C₀) 598 N
- Mass: 102 g
- Retainer: Synthetic resin (non‑metal, fixed design)
- Seal Type: UU (double‑lip seals on both ends)
- Seal Resistance: 0.294 N
- Material: Iron‑based outer cylinder; aluminum housing
- Lubrication: Pre‑lubricated with anti‑rust oil; supports grease/oil lubrication
- Operating Temperature: −15°C to 80°C (5°F to 176°F)
- Accuracy: High‑accuracy grade (standard)
- Mounting: M5×12 tapped holes; easy bolt‑on installation
Key Features
- Compact, lightweight aluminum housing for space‑saving integration
- UU double seals for effective dust and contamination protection
- Synthetic resin retainer ensures quiet, stable linear movement
- Compatible with hardened precision shafts; self‑aligning for minor misalignment
- High rigidity and load capacity for its size
Applications
Widely used in automation equipment, packaging machinery, conveyors, measuring instruments, and small industrial linear motion systems.
