SKF
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 25 | 2,08 € | 39,49 € |
| 35 | 4,17 € | 37,41 € |
The SKF 7304 BECBP angular contact ball bearing accommodates combined loads and, thanks to its increased P6/P5 precision, offers smooth running with dimensions of 20x52x15 mm.
This single-row angular contact ball bearing 7304 BECBP, made from standard 100Cr6 bearing steel, is designed as an open bearing for demanding rotational movements. Thanks to the contact angle, the rolling elements transfer radial forces and unilateral axial forces precisely between the solid bearing rings. The SKF Explorer design combines the dimensional accuracy of tolerance class P6 with the finer running accuracy of P5, ensuring the component runs smoothly even at higher speeds.
The bearing primarily accommodates radial loads that occur simultaneously with unidirectional axial forces. The 40-degree contact angle gives the design a high axial load-carrying capacity in one direction. Typical applications include shaft mountings subject to combined loads, where defined guiding forces act on the shaft. In combination with a second, oppositely mounted bearing, this design guides shafts without play and absorbs alternating axial forces.
The integrated polyamide cage guides the balls with low friction and ensures a low weight at operating temperatures ranging from –20 to +120 degrees Celsius. Furthermore, the bearing can be positioned in any orientation: When mounted in pairs in an O or X configuration, a defined, low axial clearance is automatically established. As this is an open bearing without integrated seals, lubrication is provided by the housing’s surrounding lubrication system, which also protects against the ingress of contaminants.
The bearing has an inner diameter of 20 mm, an outer diameter of 52 mm and a width of 15 mm. The outer ring is cylindrical in design and has neither a flange nor a ring groove, which makes it easier to fit into standard housing bores.
The contact angle describes the line along which the contact forces are transmitted from one raceway to the other via the balls. An angle of 40 degrees allows for high axial load capacity in one direction; however, it always requires an opposing force or a minimum load to be applied during operation.
The dimensional accuracy complies with Class P6, which means tighter tolerances for bore and outer diameter. The running accuracy complies with the more precise Class P5. This combination reduces both the radial and axial runout of the rings, which dampens vibrations and ensures smooth running.
The universal BECBP design allows for installation in pairs without shims. When two bearings are arranged opposite each other (O or X configuration), a small amount of axial clearance is established, as factory-set. This simplifies assembly and ensures that the specified internal bearing clearance within the bearing set is maintained.
Thanks to the integrated polyamide cage and the 100Cr6 material, the roller bearing is designed for operating temperatures between -20 and +120 degrees Celsius. Within this range, the cage material retains its elastic and damping properties and guides the rolling elements safely.
As an open bearing, the design is intended for installation locations where external seals are fitted to the machine housing. The lubricant – usually lubricating oil or grease from the housing circulation system – reaches the raceways unimpeded, allowing heat to be dissipated effectively during operation.
SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
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