The 6304 2RSNRC3EMQ TTN Deep Groove Ball Bearing is engineered for versatility and reliability in various applications. With a bore size of 20 mm and an outer diameter of 52 mm, it supports radial loads effectively. This bearing features double rubber seals for superior protection against dust and moisture, enhancing its lifespan. Rated for a maximum speed of 5,500 RPM, it is ideal for electric motors and machinery. The C3 clearance provides additional space for thermal expansion, ensuring optimal performance under varying conditions. Compliant with industry standards, this bearing is a dependable choice for your mechanical needs.