61801-Z

61801-Z is a universal single-row deep groove ball bearing with a single-sided metal dust-proof cover. Its core function is to be a high-speed protective universal bearing suitable for small and medium-sized equipment. With a compact size of 12mm inner diameter, 21mm outer diameter, and 5mm width, and a lightweight design, it can be flexibly inserted into mechanical installation cavities with limited space without increasing the load on the equipment. The single-sided metal dust-proof cover adopts a non-contact structure, which can effectively prevent dust, debris, and other impurities from entering the bearing interior, reducing the wear on the raceways and balls, extending the service life, and avoiding the increase in friction resistance caused by contact seals, ensuring high-speed operation performance. Under oil lubrication, the rated speed can reach 70,000 r/min. During high-speed operation, it can still maintain smooth rotation. This bearing is made of GCr15 high-carbon chromium bearing steel or 440C stainless steel, capable of stably bearing radial loads and handling some bidirectional axial loads. It meets the comprehensive requirements of small and medium-sized equipment for speed, stability, and basic protection. Commonly, it is paired with a single-sided dust-proof design and is convenient for replenishing lubrication as needed. It is compatible with a temperature range of -30°C to 120°C and can cope with various routine working environments. It is also compatible with international brand bearings of the same specification, with strong interchangeability, reducing equipment assembly and replacement costs. It is widely applicable to general machinery, small and medium-sized motors, office equipment, household appliances, precision instruments, automotive electronics, automation equipment, medical device small components, etc., and is a universal bearing that combines protection, practicality, and economy.