RKB L 555249/210 tapered roller bearing
- Brand
- RKB
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Description
RKB L 555249/210 belongs to tapered roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for L 555249/210 and any equivalents.
RKB L series tapered roller bearings are separable units with tapered raceways that accommodate combined radial and axial loads in one direction. Each assembly consists of a cone and a cup matched by part number, and they are typically mounted in opposed pairs to manage thrust in both directions. These bearings are found in wheel hubs, axle hubs, gearboxes, and transmission equipment where precise shaft guidance is required.
The part number for this series combines the cone and cup numbers separated by a slash. For example, in L 44643/610, the first portion identifies the cone and the second the corresponding cup. Other references in the line, such as L 68149/110 or L 555249/210, follow the same pattern. Ordering by the complete pair ensures the correct cone-cup match as defined by the manufacturer.
Typical applications include wheel hubs of trailers and semi-trailers, hubs of agricultural machinery, gearboxes and gear cases, and transmission equipment in manufacturing plants. They also appear in horizontal-shaft pumps and fans, where axial and radial loads occur together. Because the bearing is separable, the cone and cup can be replaced individually if wear is uneven.
Proper selection requires using the exact cone-cup pair from the part number and avoiding mixing components from different series. Installation calls for clean seats, an interference fit on the shaft, and a defined preload or axial clearance based on the application. Grease or oil lubrication and effective sealing are essential to keep contaminants out, which is the most common cause of failure. Alignment between the two bearings in the pair also affects service life.
Tapered roller bearings from various manufacturers share the cone and cup numbering system, and many references have the same main dimensions. If you have a part number from another brand or an unidentified part, we can cross-reference it to the RKB line and suggest a compatible equivalent. Interchangeability is determined by dimensions and by the complete pair, not by the isolated number.
To request a quote for an L series tapered roller bearing, send the complete part number, the cone-cup pair, or the seat dimensions via WhatsApp or email. Our team responds promptly and can also advise on lubrication and sealing for your assembly.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- How do I order an L series tapered roller bearing?
- Provide the complete part number with the cone-cup pair, such as L 44643/610, or the cone and cup numbers separately. We will quote the exact reference via WhatsApp or email.
- Can I replace only the cone or only the cup?
- Yes, because the bearing is separable, the cone and cup can be replaced individually. Evaluate wear on both, and if uncertain, replace the assembly to maintain the original fit.
- What should I consider when mounting these bearings?
- Ensure clean seats, respect the shaft fit, set the axial clearance or preload according to the application, and apply proper lubrication and sealing. Alignment between the two bearings in the pair is critical for service life.