The design of double row deep groove ball bearings is basically the same as single row deep groove ball bearings. The deep groove ball-shaped raceway and the raceway and the steel ball have excellent adhesion. In addition to radial loads, double row deep groove ball bearings can also withstand axial loads acting in two directions.

In order to get the bearings running well. Double row deep groove ball bearings, like all ball bearings and roller bearings, must withstand a certain minimum load, especially at high speeds or high accelerations, or when the load direction changes rapidly. Under these conditions, the inertial force of the ball and cage and the friction in the lubricant will have an adverse effect on the rolling of the bearing. Between the ball and the raceway, there may be a sliding motion that damages the bearing.