1.Product Overview The 6302LLB single row deep groove ball bearing is fitted with double-sided LLB non-contact nitrile rubber labyrinth seals, standard dimension 15×42×13mmSKF 集.... The LLB seal forms a micro labyrinth gap without touching the inner ring raceway, combining ultra-low rotational torque, high limit speed and superior fine dust blocking performance. It supports radial load and slight bidirectional axial load, pre-filled long-life lithium lubricating grease,