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Installation prerequisite is one of the leading factors in the use factor, caused by differences of NSK bearings are installed the right package of changes among parts of bearing stress condition, bearing does not operate under normal conditions and early failure. According to the thrust ball bearings installed, used, maintained, maintenance of technical requirements in the operation of bearings under load, speed, temperature, vibration, noise monitoring and checks and lubrication provided, abnormal findings immediately find the cause, make adjustments, bring it back to normal.
Installation prerequisite is one of the leading factors in the use factor, caused by differences of NSK bearings are installed the right package of changes among parts of bearing stress condition, NSK bearing irregularity operate and early failure. According to NSK bearing installation, use, maintenance, maintenance of technical requirements in the operation of bearings under load, speed, temperature, vibration, noise monitoring and checks and lubrication provided, abnormal findings immediately find the cause, make adjustments, bring it back to normal.
Fracture effect of NSK bearing overload two secondary causes are defects take effect. When plus loads across the material strength limits to form the fracture is called overloading of parts breakage. Overload causes a minor from the sudden illnesses or remove inappropriate. Bearing parts micro-cracks, shrinkage, bubbles, large foreign impurities, defects such as local Burns and overheating organization is hitting overload or intense vibration is when defects cause fracture, fracture called defects. What pointed out that NSK bearings are making process, this material into the plant for re-inspection, cast and amount of thermal disposal process of moderation, moderation, through instruments and precise articulation of the above defects can not, must still strengthen restraint. In General, however, all appear bearing fracture effect greatly for overload effect.
NSK bearings are done outside, as the impact of outside or within the element, so that the common gap changes, loss of precision, even "killed" called visiting the gap effect. External factors such as quantity is too large, split is not in place, temperature rise causes dilation, instantaneous overload etc, austenitic are factors such as deterioration and dilapidation in unstable patterns are formed when the force is visiting the gap effect of secondary causes.
1. clearance. For beyond delineation of tour gap level range of bearing, or tour gap value has close to ceiling, by polished or grinding Hou, tour gap very has may super poor, as C0 level bearing, tour gap super poor to C3 level, or has close to C0 level ceiling, first will in analysis lecture in the informed customer, the set bearing has to C0 tour gap range ceiling outer ring roll road debris pressure trace outer ring roll road microseismic friction erosion (rub clothing plate shaped au slot) within ring roll road stick attached wear move body roll road stick attached wear outer ring outside round friction erosion within ring roll road serious tired peeling or super poor, Customers based on preconditions of NSK bearings confirm whether the C3 clearance can be used. Process is shown in Figure 4.
2. Diameter, width, ovality, wall thickness difference. NSK solutions factory repair for all brands of bearings, but repair quality same as NSK bearing quality scale, dimension, or precision bearings of the variance, scrap or replace the appropriate parts. For tapered roller bearings, also need high measuring Assembly.
3. Poor move group. NSK bearing arrive to move the body separated from the ring has different brands to move in or suspected of entering into, needs testing has spread to move poor groups, to ensure that the moving body as a set, do not mix.
4. Ultrasonic flaw detection. NSK bearings after running for some time, under the bearing surface (0.1~0.5mm depth range) formed the microscopic cracks that cannot be observed with the naked eye, surface using ultrasonic flaw detection can detect bearing no microscopic cracks, to determine if bearings have a fix value of reference.
5. Hardness. NSK bearings surface of tempered color for hardness testing.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7319BDF NSK | 95 | 200 | 45 |
| 7319ADF NSK | 95 | 200 | 45 |