61801-RS

61801-RS is a universal single-row deep groove ball bearing with a single-sided nitrile rubber (NBR) contact seal ring. Its core positioning is to be a high-speed sealed 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 contact rubber seal ring of this bearing has better sealing performance, effectively blocking dust, moisture, and other impurities from entering, and firmly locking the lithium-based composite lubricating grease pre-installed at the factory, reducing lubrication loss and wear on the raceways and balls, extending the maintenance-free period and service life of the bearing. Although it is a contact seal, its impact on speed is relatively small. Under oil lubrication, the rated speed can still reach 65,000 r/min, maintaining smooth and stable operation at high speeds. This bearing is made of GCr15 high-carbon chromium bearing steel or 440C stainless steel, featuring good wear resistance and sealing performance. It can stably withstand radial loads and some bidirectional axial loads, meeting the comprehensive requirements of small and medium-sized equipment for speed, stability, and sealing protection. It is compatible with a wide range of normal working environments from -20°C to 100°C and is compatible with international brand bearings of the same specification, with strong interchangeability, reducing the adaptation cost for equipment assembly and old parts replacement. 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, small transmission equipment in humid or dusty environments, etc. It is a universal bearing that combines sealing protection, high-speed performance, practicality, and economy.