
TIMKEN 18204X tapered roller bearing cone
- Brand
- TIMKEN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Description
TIMKEN 18204X belongs to tapered roller bearing cone, 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 18204X and any equivalents.
A tapered roller bearing cone is the inner assembly: it holds the inner race, the rollers and the cage. It works only when paired with the cup, the outer race that sits in the housing. Together they handle radial and axial loads at the same time. The Timken X series covers cones used in many industrial and automotive positions. MR Industrial Accessories supplies this line and helps you confirm the right cone for your equipment.
The X series uses a base number to identify each cone: 246X, 342X, 355X, 358X, 367X, 385X, 525X, 529X. In Timken's system, that number is tied to the cone's main dimensions, including bore diameter and width. The trailing X marks a construction variant inside the same family. The most reliable way to pick a cone is to start with the number stamped on the original bearing or listed in the equipment manual, then match it to the correct cup.
These cones show up in gearboxes and transmission cases, axle assemblies on road machinery, conveyor rollers, milling equipment, centrifugal pumps and automotive uses. You will also find them in agricultural machines such as seeders and harvesters, where combined loads and tough conditions call for robust bearings. Because the cone is a wear part, replacing it with the correct reference is what keeps the assembly running for its expected service life.
Cone and cup are chosen as a set, so do not mix parts from different series unless you have checked compatibility. Inspect the race, the rollers and the cage; if you see pitting, uneven wear or too much play, replace the complete assembly. When mounting, keep the parts aligned and use clean lubricant in the right amount. Tapered rollers perform best with proper lubrication. Incorrect axial clearance speeds up wear and can harm the equipment.
Tapered roller bearings follow different numbering systems depending on the maker. The same number can point to similar but not identical dimensions, so always confirm interchangeability by measuring the cone and cup. Timken is a well-known name in this technology, and MR Industrial Accessories supplies it. If you are replacing a bearing from another brand, send us the original part number and we will point you to a compatible option.
If you need a cone from the X series, send the exact part number from your equipment or the old bearing. We will quote it and help you confirm it is the right part. We can also advise on the matching cup and suitable lubricants for mounting. Send us the reference and we will reply.
Dimensions
- Bore
- 52.000 mm
Frequently asked questions
- What is the difference between a cone and a cup in a tapered roller bearing?
- The cone is the inner assembly: inner race, rollers and cage. The cup is the outer race, mounted in the housing. They form the bearing and are selected as a pair. Mixing parts from another series without checking measurements is not recommended.
- How do I know which Timken cone my equipment needs?
- Look for the number engraved on the original bearing or in the equipment manual. That part number identifies the cone. If you cannot find it, write to us on WhatsApp with the machine data and we will help you identify it.
- Do Timken bearings have equivalents with other brands?
- Yes, but interchangeability is not automatic: each manufacturer uses its own nomenclature and there may be dimensional differences. Always verify the cone and cup measurements. Send us the original part number and we will indicate the compatible alternative.

