The damage to automatic tie-wrapping machines is often caused by overheating during operation.

During the operation of our automatic bundling machine, we have specific regulations in place, such as the bearing temperature of the automatic bundling machine not exceeding the allowable limit, and no oil leakage at the edge of the bearing cover. With these two phenomena ruled out, there are typically no other causes. Therefore, let's focus on analyzing the reasons for the bearing overheating.

There are many causes for the overheating of automatic tie-wrapping machine bearings, with some common reasons including:

Firstly, the imbalance of the inner and outer rings of the ball bearing is one of the causes of overheating. The imbalance may originate from machine processing. Since the base and end caps of the fully automatic strap machine are separately processed, there may be cases where the bearing holes on two end caps are not coaxial (i.e., their centerlines are not aligned). Additionally, poor assembly, uneven tightness of screws on the end caps, dust and debris on the flanges, and other issues may also lead to the imbalance of the inner and outer rings. If the inner and outer rings of the bearing are unbalanced, it can cause the steel balls to scrape against the inner and outer rings, increasing friction and resulting in overheating. If no other cause is found, clean the machine opening, reassemble it, and tighten the screws in a diagonal sequence one by one. The minor errors formed during processing can be improved by the gradual automatic adjustment.

Next, there is friction between the bearing cover and the shaft. This occurs due to the shaft axis and the axis of the mechanical equipment it drives not aligning during assembly, or due to inaccurate machining causing the inner circle of the bearing cover to be eccentric, leading to local friction between the bearing cover and the shaft. Mild cases result in bearing overheating, while severe cases may produce smoke. The rubbing area of large high-speed motors will quickly turn red. At this point, the machine should be immediately stopped; otherwise, the fully automatic tie-wrap machine may be damaged.

Excess or insufficient lubricant can also cause overheating. Over time, the internal lubricant in bearings gradually diminishes, leading to inadequate lubrication and increased frictional wear, causing the bearings to overheat. Prolonged operation with insufficient lubricant can damage the bearings. Overfilling with lubricant or using excessively thick oil can also lead to overheating. Moreover, the presence of hard particles or impurities in the lubricant, uncleaned bearings, or the use of dirty oil to clean them, can leave sand particles and iron shavings inside, increasing mechanical friction and causing the bearings to overheat. These impurities also make the bearings more susceptible to damage.

Then, a too-tight belt or an automatic tie-down machine not aligned with the shaft center of the driven machinery, i.e., being off-center, will increase bearing load and cause overheating.