Detailed Installation Method for Deep Groove Ball Bearings with a Ball Gap

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Deep groove ball bearings with a ball gap require careful installation to ensure proper performance and longevity. These types of bearings often lack a cage, meaning the steel balls must be manually inserted into the raceway. The process usually starts by loading more than half of the steel balls first, or inserting them based on the filling angle—typically around 186 balls. The remaining balls are then loaded from the gaps, ensuring they do not fall out during the process. The radius of curvature of both the inner and outer grooves should be equal to or greater than that of the steel balls. However, the minimum spacing between the inner and outer notches must be smaller than the diameter of the steel balls. This design helps keep the balls in place but also makes it challenging to insert them directly into the raceway. To install the balls, you can lift them and position them carefully on either side. If the bearing is inclined, it may help to press open the gap. Some bearings have a ball socket designed for this purpose, allowing the steel balls to be placed more easily. Once the ball is in place, it will naturally move into the raceway when the bearing is properly aligned. During installation, it's crucial to align the inner and outer grooves. A punch with an inclined surface can be used under pressure to cause elastic deformation, which expands the gap slightly. This allows the steel ball to fit smoothly into the bearing. If a hydraulic machine is available, it can be used to open the gap and insert the balls one by one efficiently. When using a crankshaft press or similar equipment, after each steel ball is inserted, you should pull or rotate the ferrule to allow the next ball to be loaded. This process continues until all the balls are in place. It’s important to avoid using excessive force, as this could lead to safety hazards. For bearings with a 5-type cage, it’s recommended to install the steel balls in pairs, ensuring the number of balls is even. Start by placing half of the balls into the bearing, then insert the 5-type cage from the end. After that, use the ball gap to place the remaining balls into the opposite side of the cage. Due to the interaction between the balls and the cage, aligning the inner and outer grooves can be difficult, so the bearing may need to be rotated multiple times to adjust the positioning. Proper installation of deep groove ball bearings with a ball gap is essential for optimal performance. Following these steps carefully ensures that the bearing functions correctly and lasts longer.

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