The SW MR147ZZ is a high-precision miniature deep groove ball bearing engineered for demanding applications where spatial constraints require a compact yet robust solution. Featuring a 4mm inner diameter (d), a 7mm outer diameter (D), and a 2.5mm width (B), this bearing is constructed from high-quality 52100 Chrome Steel, ensuring superior hardness and resistance to wear. The ZZ designation indicates double metal shields, which prevent larger contaminants from entering the raceway while minimizing friction and allowing for exceptional high-speed performance in environments where relubrication is impractical. Utilizing an ABEC-3 precision rating, the MR147ZZ is ideal for sensitive equipment such as small electric motors, instrumentation, RC hobby equipment, and specialized medical devices requiring smooth, low-noise operation.
As part of the SW industrial product line, the MR147ZZ delivers reliable rotational performance and extended service life crucial for maintaining operational uptime. Each unit is pre-lubricated with high-grade grease to ensure optimal performance right out of the box, reducing initial maintenance requirements. Its standardized ISO design guarantees seamless integration into existing assemblies. Designed to handle both radial and minor axial loads, this bearing provides exceptional load distribution and thermal stability under varying operating conditions, making it the trusted choice for product developers and maintenance engineers focused on long-term efficiency and quality.
Key Features
High-Precision ABEC-3 Tolerance for smooth and accurate operation.
Double Metal Shields (ZZ) protect against contamination while maximizing speed capability.
Manufactured from high-strength 52100 Chrome Steel for extended fatigue life.
Pre-lubricated with quality grease, ensuring maintenance-free performance upon installation.
Designed for high-speed rotational applications in electronics, instrumentation, and hobby models.
Standardized dimensions guarantee seamless interchangeability with industry equivalents.
