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INA bearing size or shape due to stress or component changing is called deformation. Production machinery and equipment on the ground because of the bad working conditions, often overloaded run, some bearing deformation is very common. Accelerated wear their deformation will make other relevant parts, even broken, also has the potential to cause the system to bearing damage or damage to the equipment, resulting in equipment accidents, deformation damage is very serious.
INA bearing deformation produced by stress is less than the yield strength is known as elastic deformation. Plastic deformation, also known as permanent deformation, refers to the bearing parts in the outside force (load) after removal, unable to restore part of the deformation. Excessive amount of deformation is an important type of mechanical equipment failure.
1. with reasonable cooling method:
Metal quenching cooling after deformation's influence was also one of the very important reasons. Hot than cold oil oil hardening quenching deformation of small, generally under 100 ± 20 ° c. Oil cooling capacity on the deformation is also critical. Mixing modes and speed of quenching effects are deformed. Heat treatment of metals faster the cooling, cooling the more uneven, resulting in greater stress, mold changed INA bearing-shape and more.
2. the use of appropriate media:
On the premise of guaranteed the same hardness, as far as possible the use of oily media, experiments and practice has proved that the other conditions under the premise of no differences, slow cooling of the oil medium and aqueous medium cooling speed is relatively fast.
3. the part structure must be reasonable:
Metal heat treatment and cooling process, always thin some of the cold faster, thicker part of the cold slow.
Reflected in the INA bearing vibration measurement, bearing vibration of bearing damage is very fast, to be, after adoption of measuring bearing vibration (frequency Analyzer and other) measures the size of vibrations, after frequency, no thought to detect very specific situations. Due to the conditions of use of measured values for bearings or sensor installation location and differences, so necessary in advance compared to the analysis of the measurements for each machine a clear judgment.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 4T-55187C/55437 NTN | 47.625 | 111.125 | 26.909 |
| 4T-LM503349A+/LM503310++ NTN | 45.987 | 74.976 | 18 |