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What Are the Factors Behind the Decline in Damping Pivot Torque?

Release time:2025-12-18    View:15

Multiple customers have reported: "Too tight" feel and difficult flipping after installing the flip screen pivots purchased online. How come this "tight right out of the box" awkward situation occurs despite having verified the torque parameters before ordering?

Torque degradation is an inherent characteristic of pivots—随着开合次数增加,阻尼片逐渐磨损,扭矩自然下降. However, when "new pivots feel tight," it is often caused by the following factors叠加:

Selection ErrorTorque is not necessarily better when larger—it needs to be precisely calculated based on screen weight and center of gravity height. Blindly increasing torque actually causes a stiff feel.

Damping System MismatchPoor-quality damping grease or substandard metal spring materials cause initial torque to be artificially high and decay too rapidly.

Structural InterferenceSome standard model pivots don't consider the client's complete machine assembly space, creating additional preload after installation that further increases resistance.

Missing Verification ProcessSome suppliers only perform static torque testing, neglecting life pre-commissioning that simulates actual working conditions, leading to parameter distortion.

How to Avoid "Data Match Before Purchase, Feel Changes After Installation"?Suocheng recommends:

  • Provide complete machine 3D models for dynamic torque simulation by engineers;

  • Require samples to undergo 5,000 cycles of pre-commissioning before torque measurement;

  • Select imported damping grease that meets ROHS standards with decay rate ≤ 15%;