is there any noise? Hold the inner sleeve of the bearing with your left hand, and turn the outer sleeve with your right hand to make it rotate to hear if it has noise. Since most of the counterfeit products are out of production conditions and completely hand-worked, it is inevitable that impurities such as sand will be incorporated into the bearing body during the production process, so that noise will be generated when rotating. This is the biggest difference between a factory brand that strictly enforces production standards and operates with machines.

The 6 in the 608 bearing represents the 6 series deep groove ball bearing, 0 is the size series, 8 is the inner diameter of 8mm, if the bearing is a standard part, the outer size is usually one, the old model is represented by 80018. Dimensions are: outer diameter 22mm, height 7mm, inner diameter 8mm. There are 7 steel balls and the diameter of the steel ball is 3.969mm.

In 2004, Jinan Xinghui Bearing Co., Ltd. was established. As a project for investment promotion in Jinan, the company has settled in the Entrepreneurship Center for Overseas Students.