TIMKEN Bearing 62304-2RS-C3

Product description of TIMKEN Bearing 62304-2RS-C3

TIMKEN Bearing 62304-2RS-C3, It belongs to Category: TIMKEN Bearing > Ball Bearing > Deep Groove Ball Bearings > Wide Section Ball Bearings (62000, 63000). A bearing assembly for a rotating part liable to be subjected to an axial load of variable magnitude and direction, the bearing comprising two coaxial bearing sets each consisting of balls, an inner race and an outer race, the latter being mounted to slide axially, the two sliding races being resiliently urged towards respective abutment means, and the sliding motion of one of the such rings, in opposition to the action of the resilient impulsion, being limited by a second abutment means to an extent equal to the internal axial clearance of the other bearing.

TIMKEN Bearing 62304-2RS-C3,Extremely wide-section ball bearings and roller bearings contributing to downsizing, weight saving, and reduction of torque loss of robots, construction equipment, and industrial machinery.

Extremely wide-section ball bearings and roller bearings contributing to downsizing, weight saving, and reduction of torque loss of robots, construction equipment,and industrial machinery. TIMKEN Bearing 62304-2RS-C3, To maintain good lubrication and prevent escape of a crown-shaped retainer from a bearing body by providing a self-lubricating agent at least a portion of each pocket of the retainer contacting each ball. CONSTITUTION:A crown-shaped retainer 10 is formed of metal such as steel or iron. The retainer 10 is formed with pockets 5 retaining balls. A self- lubricating film 11 formed of high molecular composite material such as PTFE is coated on a ball sliding surface of each pocket 5. In a self-lubricating deep groove ball bearing including the retainer 10, good lubrication to sliding contact of each ball is maintained by the self-lubricating film 11. Moreover, as claws 12 of the retainer 10 are formed of metal, there is no possibility of breakage or the like due to an external force such as vibration and shock, and escape of the retainer 10 is prevented. Accordingly, a life of the bearing may be extended, and the reliability may be improved.

TIMKEN Bearing 62304-2RS-C3, Wide Section Ball Bearings. This paper deals with detection of local defects existing on races of deep groove ball bearing in the presence of external vibrations using envelope analysis and Duffing oscillator. Experiments have been carried out using a test rig for capturing the vibration signals of test bearing. The external vibration has been imparted to the housing of the test bearing through electron mechanical shaker. In envelope analysis the centre frequency has been selected using the spectral kurtosis for the filters length of 32 and 64 for different bandwidths. Through this study, it has been revisited and confirmed that the defect detection in envelope analysis mainly depends on the selection of centre frequency and bandwidth. The spectra of selected centre frequency with several bandwidths have been studied and compared for identification of defective frequency. The system defined by the Duffing equation entered into the periodical state from the chaotic state at the critical value of disturbing periodic force in the presence of defective bearing signal. The state change has been identified using the phase plane trajectories and Ulyanovsk exponents of Duffing equation. It is worth to mention here that envelope spectrum reveals the information about the defect frequencies and their harmonics. However, the Duffing oscillator only confirms the presence of defect frequencies by indicating closed phase plane trajectories and negative Ulyanovsk exponents. Authors believe that for speedy assessment about the presence of defects on races of rolling element bearings, the use of Duffing oscillator may be preferred.

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