Bearing excitation occurs for many reasons, mainly for the following checks:
1, due to changes in the number of rolling load generated excitation
When a radial load loaded on FAG bearings, its load bearing rolling element number may vary slightly in the operation, namely: which raises the load direction of the offset. The resulting vibration is inevitable, but can be pre-loaded to reduce axial, rolling load at all, but does not apply to cylindrical roller bearings.
2, waviness component
The bearing ring and the bearing or the tight fit between the shaft case, FAG bearing ring may be compatible with the adjacent parts of the shape and deformation. If there is distortion in the operation may produce vibration. Accordingly, the bearing and the shaft is machined to the required tolerances is important.
3, bearing partial damage
Since operation or installation error, a small part of the bearing raceways and rolling elements may be damaged. In operation, the rolled damaged bearing member to produce a particular vibration frequency. Frequency analysis can identify the damaged bearing member.
FAG Bearings ultrasonic cleaning machine system is the key equipment, the mission of the washing machine bearings particularly bad working conditions, to continuously withstand shock, vibration, run under overload conditions, and requirements of more than 15 years service life and reliability requirements are particularly high, so , the use of ultrasonic cleaning machine design and manufacture of the bearing has put forward higher requirements.
Bearing in the repair process, always in the normal state, no stress, no heat deformation, cracks, annealing, softening, no broken, cracked the potential impact. Combination of high strength, no shedding, no hard points, surface finish, hardness adjustable. Available for low carbon steel and carbon steel, medium carbon steel and carbon steel, high carbon and high carbon steel, high-strength alloy steel, stainless steel, cast steel, cast iron, copper and copper alloys, aluminum and aluminum alloys , zinc and zinc alloys, chromium, nickel, chromium-nickel steel and material unaccounted for repair.
Fix position is accurate, flexible, and repair can be controlled precision, you can live without disassembly repair, repair tooling grinding technology position can be accurately Reply dimensions. Washing machine is used for grinding cement, coal and other construction, chemical, ceramics and other industrial raw materials, with a small, light weight, small footprint, low power consumption, energy saving more than 30% agreed, long life and a series of advantages.
(1) As maintenance personnel FAG bearings in the assembly process is not carefully executed, forced percussion bearings, resulting in plastic deformation of the cage, increasing the rolling element cage with the question of the friction, and even rolling to death, can not move, bearing in motion by the strong impact of the role of alternating load, the occurrence of damage to the cage, balls crushed.
(2) the maintenance staff of the bearing outer race between the gland and 4631l paper pad to adjust properly, causing the bearing axial movement increases, the role of the strong impact load damage occurs cage, ball broken.
(3) FAG bearings themselves grinding, heat treatment of the residual stress in a high load exercise excessive thermal stress, fatigue strength decreases sharply, resulting in damage to the cage, balls broken.



Other News:
FAG Bearings reasons arising from the use excitation detection and analysis
Analysis of the engine lubrication of journal bearing
TIMKEN bearing life influence the causes and maintenance measures
Needle bearing lubrication problems improper treatment of burn
Major impact on the life of the bearing installation aspects
In General, if used correctly bearing, you can use up to reach fatigue life. But there are accident prematurely damage,
Hybrid hybrid bearings connecting rod bearing shell borer
Bearing structure on performance requirements