Vulnerable Components and Causes of Damage in a Four-Roll Plate Bending Machine

**Electric Motor:** The primary cause of damage is motor burnout.

**Reducer:** As a core transmission component, improper use can lead to abnormal noise and excessive strain, making it prone to damage.

**Composite Sleeve (Contact Sliding Bearing between the Lower Roller and the Fixed/Tilting Seat):** Although made of high-wear-resistant copper alloy, the high frequency of contact during operation makes it susceptible to wear over time.

**Electrical Equipment (Control System):** Composed of various electrical parts, it is generally highly susceptible to damage.

**Lead Screw, Worm Gear, Turbine Gear, Nut:** As core transmission components, they experience high frequency of frictional contact and are prone to damage. Monthly disassembly and application of grease are necessary to reduce frictional wear.

**Bearings and Bearing Housings:** Self-aligning bearings and spherical plain bearings are common wear parts.