RKB L 555249/210 tapered roller bearing

RKB L 555249/210 is a reference of tapered roller bearing, within Bearings. Request a quote for L 555249/210 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

RKB L series tapered roller bearings are units with tapered raceways that support combined radial and axial loads in a single direction. They are supplied as cones and cups matched by part number, and are mounted in opposed pairs to cover both thrust directions. They are used in wheel hubs, axle hubs, gearboxes and transmission equipment where the shaft must be guided with precision.

The designation of this line is read from the cone number and the cup number separated by a slash: in L 44643/610, the first block identifies the cone and the second the matching cup. Examples in the series, such as L 68149/110 or L 555249/210, show that each assembly is ordered by that pair of numbers and not by loose dimensions. When the part number is complete, the cone-cup combination is already defined by the manufacturer.

In Argentine industry they appear in wheel hubs of trailers and semi-trailers, in hubs of agricultural machinery, in gearboxes and gear cases, and in transmission equipment of manufacturing plants. They are also found in horizontal-shaft pumps and fans, where axial load coexists with radial load. Because they are separable, the cone and cup can be replaced separately when wear is uneven.

To select correctly, the cone-cup pair of the part number must be respected and components from different series must not be mixed. Mounting requires clean seats, interference fit on the shaft and a defined preload or axial clearance according to the application. Grease or oil lubrication and correct sealing prevent the entry of contaminants, which is the most common cause of failure. The alignment between both bearings of the pair also affects service life.

Among brands, tapered roller bearings are identified by the cone and cup numbering system, and many references from different manufacturers share main dimensions. When the customer brings a part number from another brand or an unidentified part, at MR Accesorios Industriales we cross-reference it with the RKB line and indicate the compatible equivalent. Interchangeability is resolved by dimensions and by the complete pair, not by the isolated number.

If you need a quote for an L series tapered roller bearing, send us the complete part number, the cone-cup pair or the seat dimensions on WhatsApp and we will quote it shortly. We can also advise you on lubrication and sealing of the assembly. MR Accesorios Industriales, Buenos Aires, Argentina, with more than 80 years supporting industrial maintenance.