The YC series hub bearings is a double row angular contact ball bearing composed of an integral outer ring and two separable inner rings, which is available either with seals or without seals.

• YC公司生产的系列轮毂轴承是由一个整体外圈和两个可分离内圈组成的双列角接触球轴承，有带密封圈和不带密封圈两种结构。