The BBMB MR63ZZ bearing, a miniature deep - groove ball bearing, is meticulously crafted from high - quality bearing steel, offering outstanding performance and reliability. It's the perfect choice for a wide range of devices with stringent requirements for space and precision. With an inner diameter of 3mm, an outer diameter of 6mm, and a thickness of 2.5mm, it features a compact structure that can operate efficiently in extremely limited spaces.  Both the rolling elements and the inner and outer rings of this bearing are made of bearing steel. This material has high and uniform hardness, excellent wear resistance, and a high elastic limit, endowing the bearing with remarkable load - bearing capacity. It can withstand moderate radial loads and also handle a certain degree of axial loads, ensuring the stable operation of equipment. Its sealing type is double - sided metal seal (ZZ), which effectively blocks the intrusion of external dust, impurities, and moisture, protects the internal precision structure, and extends the service life. Moreover, it is pre - lubricated with high - quality grease before leaving the factory, allowing it to be put into use immediately after installation, reducing maintenance costs and downtime.  Thanks to its excellent design and manufacturing process, the MR63ZZ has a low coefficient of friction during operation, enabling high - speed rotation with minimal noise and vibration. It is suitable for equipment with high requirements for smooth operation and a quiet environment.Whether in a cold industrial cold storage or a high - temperature mechanical device, it can maintain stable performance.  The MR63ZZ is widely used in industries such as electronics, medical, aerospace, and precision instruments, such as brushless motors, instrumentation, small gearboxes, dental equipment, surgical instruments, and aircraft models. With its reliable performance, it provides a strong guarantee for the normal operation of various devices.