Built to endure rigorous operating conditions and heavy mechanical stress, the 6311-ZZ is a premium medium-to-heavy series deep groove ball bearing. Equipped with dual pressed-steel shields (ZZ), it provides an excellent barrier against industrial debris and particulate contamination while securely retaining the factory-applied lubricant. Because the metal shields are non-contacting, this bearing minimizes friction and heat generation, making it the optimal solution for high-load, 55mm shaft applications such as large electric motors, industrial gearboxes, and agricultural equipment.

Engineered for applications with strict spatial limitations, the 675-ZZ is a premium single-row micro ball bearing offering outstanding rotational speed in an ultra-compact form factor. Featuring twin non-contact metal shields (ZZ), this 5x8x2.5 mm bearing ensures long-lasting internal lubrication while successfully blocking environmental contaminants. Weighing a mere 0.4 grams, this featherweight component is the ideal choice for micro-drones, delicate medical devices, and intricate robotics where minimizing rotational inertia is essential for peak performance.