SKF6000 bearingdimensions

Bearings with a tapered bore (fig. 4.14) are installed on a conical or cylindrical journal using a tapered sleeve or remove tapered-sleeve adapter. The radial clearance of bearings can be set during installation. Installation and removal of bearings is relatively simple.

With regard to manufacturing inaccuracies and spindle deflections, mutual inclinations of bearing rings occur in the housing. This phenomenon should be expected and it is necessary to select bearings that compensate for the misalignment and installation inaccuracy. Self-aligning ball bearings (fig. 4.9a), two-row spherical-roller thrust bearings (fig. 4.9b), and spherical-roller thrust bearings (fig. 4.9c), are such types. The angle of inclination of such bearings depends on the type, size, and load. High rigidity bearings, such as roller-contact or ball bearings, can compensate for small misalignments, assuming that they are unburdened.

6000SeriesbearingSize chart pdf

ZKL Company provides a full range of unilaterally or bilaterally packed or encased roller-contact bearings. The bearings use contact (friction) packing (fig. 4.15) or are encased (fig. 4.16) using non-contact (touch-less) packing. Bearings with dual-side packaging are filled with plastic grease and do not require additional greasing during operation. The use of such bearings makes it possible to design economical and spatially undemanding housing. In other instances, care must be taken to monitor the structure of other components to prevent unwanted leaking of grease and entry of contaminants into the bearings.

Timken’s deep groove ball bearings deliver reliable performance in a wide range of applications and conditions. With super-finished raceways and controlled geometries, our premium design helps ensure consistent quality.

If the load application point lies outside of the bearing axis, then an overturning torque is created. The use of a radial double-row bearing or a double-row angular-contact ball bearing usually suffices for its transfer. The use of a par of single-row angular-contact ball bearings or tapered roller bearings installed back-to-back in pairs (into an “O”), however, are preferred (fig. 4.5).

6000 bearingdimensions

A fixed axial and free axial bearing is general used for supporting shafts, while the fixed axial bearing provides shaft guidance in both directions and the free axial bearing compensation for the axial change in length and thermal expansion. If axial displacement of thermally expanding components is prevented, then uncontrolled axial overloading of firmly fixed bearings may result. Bearings that can carry combined loads are most suitable for capturing axial forces. Bearings that are best able to afford axial movement are NU and N roller-contact bearings (fig. 4.10). If ball or roller-contact bearings are used as free bearings, then one of the bearing rings (usually the outer) must be attached freely (fig. 4.11).

These bearings are more easily installed and removed, if they can be taken apart. This particularly applies for bearings within a fixed housing. Separable bearings are also suitable for use where frequent installation and removal are required. A ring with roller-contact elements may be installed separately, irrespective of the second ring (fig. 4.13a – 4.13c).

Combined loads are composed of simultaneously acting radial and axial loads. Axial load capacity of a bearing depends on the angle of contact. The larger the angle, the larger the axial load bearing capacity of the bearing. Larger axial clearance in single row ball bearings increases their load bearing capacity. Single and double-row angular contact ball bearings or tapered roller bearings are best for capturing combined loads (fig. 4.3a). Combined loads can also be borne by double-row spherical-roller bearings, thrust ball angular-contact bearings, and to a limited extent, also spherical-roller thrust bearings. Self-aligning ball bearings, NJ, NUP, or NJ roller-contact bearings and NU bearings with HJ attachment rings (fig. 4.3b) can be used for combined loads with a relatively small axial component.

6000 Bearingprice

Each type of bearing is characterized by specific properties unique to the given design and dimensions, which determine its suitability for the given type of application. Ball bearings for example are characterized by low friction and low noise. They are designed for translating medium-large radial as well as axial loads. They may be manufactured at higher precision enable them to operate at higher rpms. Due to their properties and affordability, they are among the most common types of bearings used. In contrast, spherical-roller bearings are designed for housings under high loads and are capable of compensating to a certain extent misalignments. They are thus particularly suitable for industrial use. It is thus important, when selecting the type of bearing, to consider various influences and to evaluate them according to their measure of importance for the given housing. The selection of a standard bearing is influenced particularly by:

In certain circumstances, it presents as a limiting condition for the bearing design. In small-diameter housing, the single-row ball bearing is most often applied (fig. 4.6). Roller-contact, spherical-roller, and taper-roller bearings may optionally be used for large diameter shafts (fig. 4.7). Various types of bearings also allow for a variety of types with various bearing section strengths. Where there is limited space in the radial or axial direction, bearings with a suitable cross-section are selected (fig. 4.8).

In addition to thrust bearings, ball bearings or four-point ball bearings can be used for capturing axial forces (fig. 4.4).