
RKB M 249747/710 tapered roller bearing
- Brand
- RKB
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Description
RKB M 249747/710 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 M 249747/710 and any equivalents.
RKB M series tapered roller bearings come as two separable pieces: a cone (the inner ring with its rollers and cage) and a cup (the outer ring). They handle radial and axial forces at the same time and are built for assemblies that transmit heavy loads, such as gearboxes, speed reducers and other industrial equipment. MR Industrial Accessories supplies these bearings to customers throughout the United States and in several Latin American countries.
The M series code is built from two blocks of digits separated by a slash. The block before the slash is the cone; the block after it is the cup. So M 84548/510 pairs an M 84548 cone with an M 84510 cup, and M 86647/610 pairs an M 86647 cone with an M 86610 cup. The same pattern holds for M 231649/610 and M 239449/410. Suffixes such as ECP, EC, HJ or TMMA signal variations in cage, angle or machining. Reading the code this way lets you identify the right replacement part without confusion.
These bearings appear in metallurgy, cement, mining and food processing plants, as well as in speed reducers, gearboxes, overhead cranes, belt conveyors and crushing equipment. Agricultural machinery such as seeders and combine harvesters uses them too, along with oil and gas equipment. Because they take radial and axial loads simultaneously, they suit shafts that must transmit both types of force at once.
Selection depends on the radial and axial loads, the rotation speed and the environment. Mounting calls for precise alignment and correct setting of the axial clearance, usually by shimming the cone against the cup. Grease or oil can be used for lubrication, depending on the equipment. Sealing matters because dust and moisture must be kept out. In demanding service, check the rigidity of the assembly and the thermal expansion of the shaft.
Tapered roller bearings are identified by their numeric designation and by the bore, outside diameter and width. A replacement must match those dimensions and the contact angle. Timken, SKF, FAG, NTN and NSK offer equivalent series, but each maker uses its own codes. If you have a code from another brand or an unidentified part, MR can point you to the compatible alternative or quote the exact size you need. Send the full RKB M series code by WhatsApp or email; if the designation is unclear, send a photo of the part or the cone and cup dimensions. The team replies promptly with the quote and the technical information for your equipment.
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
- What does the designation M 84548/510 mean?
- The first number, M 84548, is the cone (inner ring with rollers and cage). The second, 510, is the cup (outer ring). Together they form the assembly. For a replacement, provide the complete code as it appears on the bearing.
- How is a tapered roller bearing mounted?
- The cone goes on the shaft and the cup in the housing. Alignment and axial clearance adjustment by shims or nuts are critical. Use the right lubricant and keep seals in good condition to block contaminants. Follow the equipment manufacturer's specifications.
- What dimensions do I need to provide to request a quote for a replacement?
- Give the full bearing code (for example, M 86647/610) or, if you do not have it, the bore diameter, outside diameter and width of both the cone and the cup. With that data we quote the exact part or a compatible alternative. Write to us on WhatsApp or by email.

