Spherical roller bearings after installation, in order to check the installation is not correct, the operation check. Small mechanical hand rotation, to confirm that is not rotating smoothly. Inspection items nick, indentation caused by dysfunctional torque instability, arising due to poor installation, mount processing bad because the clearance is too small, installation errors, and seal friction torque and so on. If there is no exception, you can start the power operation.
Large machinery is not master of dynamic rotation, so cut off the power immediately after the no-load start, idle machinery, check for vibration, noise, rotating parts are not in contact to confirm that no abnormality, into the dynamic operation.
Power operation, start from no-load low-speed, slowly increased to the conditions stipulated in the rated operation. Commissioning inspection matters for, is not abnormal sound, bearing temperature changes, lubricant leakage or discoloration. If abnormal, should be immediately discontinued operation, check the mechanical, if necessary, to remove the bearing check.
Aligning roller bearing temperature, and can be speculated that under the external temperature of the bearing. However, the use of hole directly measuring the temperature of the bearing outer ring is more accurate. Bearing temperature gradually increased from the operation, usually 1 to 2 hours after temperature stabilization. If the bearing is bad installation, the temperature will soar, and abnormal high temperature. The reason lubricant such as excessive bearing clearance is too small, poor installation, and sealing devices friction is too large. High-speed

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