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Conveyor belt roller bearings are precision components; improper use will prevent them from delivering the expected high performance. The precautions for using bearings in roller conveyors are as follows: (1) During the operation of roller conveyors, avoid subjecting the bearings to severe impacts, as this can cause scratches and indentations that may lead to accidents. In severe cases, cracks and breaks may occur. (2) Keep the bearings of the roller conveyor and its surrounding area clean; maintain cleanliness around the rollers to prevent dust from entering the bearings. (3) Pay attention to rust on the bearings of the roller conveyor; hand sweat can cause rust when operating these bearings. Make sure to use clean hands, and it’s best to wear gloves. (4) Appropriate operating tools must be used, and existing tools should not be used as substitutes. (5) Users should be familiar with the bearings of roller conveyors, regularly replenish lubricants, and establish operating procedures for bearing use. II. Causes of bearing failures and malfunctions in roller conveyors Due to the varying structures and uses of roller conveyor bearings, the reasons for their failure are diverse. These mainly include: poor assembly, inadequate lubrication, overload, shock, vibration, intrusion of abrasive or harmful liquids, excessively high or low ambient temperatures, material defects, low manufacturing precision, and the effect of stray currents. Due to the complexity of working conditions, two or more failure mechanisms may act simultaneously; in some cases this manifests as a single form of failure, while in other cases it results in a combination of multiple failure forms. III. Precautions before installing the bearings of a roller conveyor (1) Preparation of the roller conveyor bearings Since the roller bearings have been treated to prevent rusting and are packaged, do not open the packaging until just before installation. Additionally, the rust-proof oil applied to roller bearings has good lubricating properties; for bearings intended for general use or those filled with grease, they can be used without cleaning. However, such bearings are prone to rusting and should not be stored for long periods of time. (2) Inspect and clean the bearing shaft and the housing of the roller conveyor to ensure there are no scratches or burrs left from machining. There must be absolutely no grinding, molding sand, chips, etc., inside the casing. Next, check whether the dimensions, shape, and machining quality of the shafts and shaft housings conform to the drawings.