Bearings for screw drives
106Pages

Bearings for screw drives Axial angular contact ball bearings Needle roller/axial cylindrical roller bearings Seal carrier assemblies Precision locknuts

The right product for every application With its forward-looking bearing arrangement solutions for feed spindles, main spindles, rotary tables and linear guidance units, Schaeffler KG has been at the forefront of the world market for decades. The bearing components alone, however, are often no longer the decisive factor for these machine subsystems. Our customers have of course benefited directly from significant performance improvements and unique selling propositions thanks to our “ready-to-fit” products; these compact, ready-to-fit bearings are used in accordance with the simple...

Bearings for screw drives Matrix for preselection of bearings Axial angular contact ball bearings Needle roller/ axial cylindrical roller bearings Seal carrier assemblies Precision locknuts The application-oriented matrix allows rapid preselection of the suitable bearing. These bearings are double direction precision axial cylindrical roller bearings with a radial bearing component. The inner ring, outer ring and cylindrical roller and cage assemblies are matched to each other such that they can be set to a defined axial preload using a precision locknut. The bearings are available with and...

Schaeffler Group Industrial

Attention! This selection matrix is a general overview for preliminary assessment of whether bearings can be considered for the required purpose. For the specific application, the data in the product sections and the technical principles must always be taken into consideration. For applications requiring very high accuracy and rigidity Definition of symbols +++ very good ++ good + satisfactory – sufficient Matrix for preselection of bearings Schaeffler Group Industrial

Characteristics High High runout speeds accuracy and low friction High rigidity and load carrying capacity Work on Low For adjacent lubricant description construction consumption and mounting see page Outer ring for flange mounting Gap seals or contact seals on both sides Greased, with relubrication facility Most economical type of screw drive bearing arrangement – As ZKLF, but in matched pair – Significantly higher load carrying capacity and rigidity than ZKLF – Gap seals or contact seals on both sides – Greased, with relubrication facility – Easier to fit than single row bearings, e.g....

Axial angular contact ball bearings

Axial angular contact ball bearings Page Product overview Design and safety guidelines Dimension tables Schaeffler Group Industrial

Product overview Double row, for screw mounting Axial angular contact ball bearings Matched pair Double row, not for screw mounting Matched pair Schaeffler Group Industrial

Single row, for matching in pairs Angular contact ball bearing unit, for screw mounting With or without lip seals Double or triple row, flange with flattened areas, for screw mounting Double row Lip seals or gap seals Schaeffler Group Industrial

Axial angular contact ball bearings Screw drive bearing arrangements are subjected to requirements that often cannot be optimally fulfilled by the design construction of conventional bearings. For the design of bearing arrangements for the highly dynamic operating conditions in screw drives that have high accuracy, high load carrying capacity, high rigidity, low friction, are easy to fit and maintenance-free or low-maintenance, there is a wide range of INA and FAG axial angular contact ball bearings. With this product range, solutions can be found to all the technical and economic demands...

With less stringent tolerances Axial angular contact ball bearings ZKLF..-2RS-PE correspond to series ZKLF but have a runout tolerance within P5 to DIN 620, less stringent diameter tolerances and the suffix PE. They are used where a lower positional accuracy is acceptable. As a result, the adjacent construction does not need to be as accurate with these bearings. Relubrication is facilitated by an axial threaded connector. The radial lubrication duct is firmly closed off. Figure 2 Outer ring screw mounted in bore, preloaded using locknut Heavy series Axial angular contact ball bearings...

Axial angular contact ball bearings Bearings with the suffix 2RS have lip seals and highly effective sealing. Bearings with the suffix 2Z are sealed using gap seals and are suitable for higher speeds. The bearings are greased using a lithium soap grease to GA28 and can be lubricated via the lubrication connectors in the outer ring. For the majority of applications, the initial greasing is sufficient for the whole bearing operating life. Double row, not for screw mounting Axial angular contact ball bearings ZKLN are mounted in a housing bore, Figure 4. The bearing outer ring is axially...

Matched pairs Bearings of series ZKLN..-2RS-2AP comprise a matched pair of bearings ZKLN..-2RS, Figure 5. The individual bearings are matched to each other. Matched bearings have an arrow marking on the outside surface of the outer rings. When the bearings are arranged correctly, the lip seals face outwards. The bearing outer rings are axially clamped by a cover, Figure 5. Schaeffler Group Industrial Figure 5 Matched pair, outer rings located using cover, preloaded using locknut Bearings with the suffix 2RS have lip seals and highly effective sealing. Bearings with the suffix 2Z are sealed...

Axial angular contact ball bearings Single row, Bearings 7602, 7603 and BSB are designed as universal bearings, for matching in pairs Fwre 6 and Figure 7. They can be combined in a wide range of sets for different Single row axial angular contact ball bearings, Schaeffler Group Industrial

Single row axial angular contact ball bearings for matching are bearings of the open basic design. However, some sizes are fitted with seals. Single row axial angular contact ball bearings of the open basic design are not supplied greased. The designs fitted with seals are greased for life with Arcanol L55. Angular contact ball bearing unit, for screw mounting Angular contact ball bearing units ZKLR are low-cost bearings and therefore particularly economical. They comprise a deep drawn sheet steel housing with an integral matched pair of angular contact ball bearings in an X arrangement,...