What Should Be Noted During Slewing Ring Installation? (Mounting Surface Flatness, Bolt Tightening Torque)

Key Points

• Mounting Surface Accuracy:​ The flatness must meet the requirements specified in the bearing documentation (typically on the order of millimeters per meter). The surface must have sufficient strength and must not deform.

• Bolts:​ High-strength bolts with a property class of 10.9 or higher must be used. Strictly use a torque wrench and tighten the bolts in a cross-pattern sequence, applying the torque in multiple stages (e.g., 50%, 80%, 100%) until the specified value is reached. Re-check the torque at regular intervals.

• Gear Mesh:​ Verify that the backlash of the gear pair is within the specified requirements.