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RADIAL BEARINGS CYLINDRICAL ROLLER EROSION PROCESSING ELECTRICAL

Drd. Ing. IOAN BADIU, Technical University of Cluj-Napoca Prof.univ.dr.ing. MARCEL S.POPA, Technical University of Cluj-Napoca

ABSTRACT: Cylindrical roller bearings take heavy radial loads that can operate at high speeds. They are manufactured in a wide variety of variants and sizes, especially with a row of rolls, and two or more rows, the next roll or roll cages. In cylindrical roller bearings, rollers are guided by fixed collar of one of the rings. In models with cage, collar ring with cage retained rollers can be extracted from the other ring. Therefore, mounting and dismounting of bearings in the hub become much easier, especially in those places where, due to the loading conditions are imperative need tight fits for both rings. Cylindrical roller bearings are assemblies consisting of a row outer rings, inner rings and roller cages. Outer rings can be trimmed on both sides and the interior have one or two edges. The cage prevents the roller contact during operation. Cylindrical roller bearings are very rigid, have a high radial load capacity and because the cage, are suitable for high speeds.

KEY WORDS : radial bearings, cylindrical roller, electrical erosion ,materials. 1.INTRODUCTION Bearings with the suffix E have a special set of rollers and are sized for bearing capacity maximă.Lagărele are dismantled, thereby facilitating assembly and disassembly. Both bearing rings can be fitted with interference fit. Cylindrical roller bearings with cage row can be used as free bearings, bearings and the bearing support conducătoare.Multe types is provided in version X-life.Lagărele X-life quality driveways with a lower roughness and

accuracy are larger than comparable versions with X-life. The dimensioning identical capacity and lifetime of these bearings is superior. In certain embodiments, X-life bearings suspension can be dimensioned at a lower overall.

2. THE PROCESSING TECHNOLOGY OF BEARINGS

Fig .1. Electrical erosion machine processed ONA -AF-25

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Fig .2. Processing the circular orbit.

Fig .3. Radial bearings cylindrical roller

Fig .4. Cylindrical roller radial bearings Timken single row.

Fig .5. Timken The cylindrical roller Ball Bearings NN / NNU.

Fig .6. Cylindrical roller Ball Bearings Timken four rows.

Fig .7. The cylindrical roller radial bearings NSK single row

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Fig .8. NSK cylindrical roller bearings type NN/NNU.

Fig .9. Cylindrical roller bearings NSK four rows.

3.THE EXPERIMENTAL RESULTS PROCESSING ELECTRICAL EROSION

Fig .10. Table containing the values parameters of electrical erosion.

Fig .11. The reporting of parameters electrical

erosion wear.

Fig .12. The connection between electrical

erosion parameters.

Fig .13. The reporting of electric erosion

productivity parameters.

Fig .14. The reporting of electric erosion

productivity parameters.

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Fig .15. Table containing the values parameters

of electrical erosion.

Fig .16. The connection between electrical

erosion parameters.

Fig .17. The reporting of electric erosion

productivity parameters.

Fig .18. The reporting of electric erosion

productivity parameters.

Fig .19. The form 3D graphics parameters

electrical erosion.

Fig .20. The form 3D graphics parameters

electrical erosion.

Fig .21. Table containing the values parameters

of electrical erosion.

Fig .22. Table containing the values parameters

of electrical erosion.

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Fig .23. The form 3D graphics parameters

electrical erosion.

Fig .24. The form 3D graphics parameters

electrical erosion.

Fig .25.Table containing the values parameters

of electrical erosion.

Fig .26. Table containing the values parameters

of electrical erosion.

Fig .27. The form 3D graphics parameters

electrical erosion.

Fig .28. The form 3D graphics parameters

electrical erosion.

Fig .29. The form 3D graphics parameters

electrical erosion.

Fig .30. Graphical form of balls and their

values.

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Fig .31. Form 2D and electrical erosion

equation parameters.

Fig .32. Form 2D and electrical erosion

equation parameters.

Fig .33. Graphical form of electrical erosion

parameters.

Fig .34. Graphical form of electrical erosion

parameters.

Fig .35. Graphical form of electrical erosion

parameters.

Fig .36. Points that determine the erosion

parameters electrical lines.

Fig .37. The straight lines a electrical erosion

parameters.

Fig .38. The equations of the straight lines and

form 2D graphics.

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Fig .39. The equations of the straight lines and

form 2D graphics.

Fig .40. The equations of the straight lines and

form 2D graphics.

Fig .41. The equations of the straight lines and

form 2D graphics.

Fig .42. The intensity parameter values

expressed in percentage.

Fig .43. The intensity parameter values

expressed in percentage .

4.CONCLUSIONS Cylindrical roller bearings are manufactured in a variety of types and sizes, especially a row of rolls, and on two or more occasions, with cages or roll next roll. In cylindrical roller bearings, rollers are guided by lateral collar of one of inele.La fixed bearings with cages, collar ring with rollers retained by the cage can be extracted from the other ring, which means that the bearings are removed. Through this, mounting and dismounting of bearings in node becomes much easier, especially in those places where due to the loading conditions are necessary adjusted close to both inele.Rulmentii are provided at the ends downloaded roller generatrix, for which linear contact between rolls and rings great change in the sense voltages edge.

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