Timken Bearings Bearing Cone

Timken Bearing Cones: Built by the Inventor of the Tapered Roller Bearing

When it comes to tapered roller bearings, Timken is the name that started it all. Henry Timken patented the tapered roller bearing in 1898, and the company he founded the following year still builds the design today. A bearing cone is the heart of that design: the inner ring and roller assembly that rides on the shaft or spindle and works with the outer cup to carry loads. Timken's Bearing Cone range reflects more than a century of refinement of this single component.

What a Timken Cone Does

A tapered roller bearing is made of two separable parts, the cone (inner ring) assembly and the cup (outer ring). The cone carries the tapered rollers and the cage that keeps them evenly spaced. Because of the tapered geometry, the bearing handles radial and axial (thrust) loads at the same time, which is why it has long been used in wheel hubs, axles and differentials. Cones are normally installed in opposing pairs on a shaft to spread loads evenly and keep the wheel or gear stable.

Materials, Cages and Design Details

Many Timken cones, such as those in the 13000 series, are made from Timken's own high-alloy steel. This is chosen for durability, heat tolerance and resistance to deformation under heavy loads. A stamped steel cage keeps the rollers from touching one another, which reduces friction, vibration and noise. These open-design, separable bearings are rated for operating temperatures from roughly -65 to 250 degrees F (-54 to 120 degrees C). The open construction allows lubrication to be applied in place and lets the bearing setting be adjusted during assembly.

That adjustability is a real advantage. Tapered roller bearings can be set to a chosen axial or radial clearance at installation. A properly set bearing can give longer service life and a stiffer mounting, and the separable cone and cup also make assembly easier.

Reading the Part Numbers

Timken publishes inch and metric cones, with specifications that include bore, cone width, cage type and dynamic load ratings. Cones are identified by part number, for example 14125A or 497. Always match the cone to its corresponding cup number, since the two are manufactured as a mated set. Check these points before ordering:

• Bore and width: Confirm the cone bore against your spindle or shaft dimension.
• Series match: Pair the cone with the cup from the same series.
• Load and speed needs: Check the dynamic radial rating for your application, whether trailer axle, truck hub or heavy equipment.
• Seals and lubrication: Replace seals and repack with fresh, correct grease whenever cones are serviced.

Where Timken Cones Are Used

Timken tapered roller bearings serve high-load, moderate-speed applications such as automotive axle systems, as well as conveyors and equipment in mining, construction and agriculture. For vehicle owners, that range means the same engineering found in industrial machinery is available for wheel-end service on cars, trucks, trailers and farm equipment.

Explore More

To see the complete range from this manufacturer, visit the Timken Bearings brand page. For a wider look at inner rings and cones from other manufacturers, browse the full Bearing Cone category.