Double-Cup Tapered Roller Bearings

Double-cup tapered roller bearings are a type of tapered roller bearing that consists of two single-row cones and one double cup. Both types can accommodate radial, axial, and moment loads. However, TDO types have a greater distance between their load centers, and they have a spacer to adjust the internal clearance.

Single-row tapered roller bearings

Single-row tapered roller bearings are a common type of bearing. They come in single or double-row configurations, and are available in inch and metric sizes. These bearings are suitable for heavy loads due to their tapered surface. These types of bearings are ideal for applications where they must carry high loads or endure high speeds.

Single-row tapered roller bearings are able to withstand thrust and radial loads in both axial directions. The outer race of the bearing A consists of a cup that surrounds the cone and a series of tapered rollers in between the cup and the cone. The tapered rollers are separated from each other by a cage that has an outwardly directed lip and tabs on one end.

Single-row tapered roller bearings have angular raceways and a force-transferring contact angle. They are ideal for applications requiring high axial rigidity and precise axial guidance. Single-row tapered roller bearings can accommodate high axial loads, making them an excellent choice for medium to high-speed applications.

Four-row tapered roller bearings

The four-row tapered roller bearing is a type of roll neck bearing with a high axial and radial loading capacity. Their high axial load capacity makes them a suitable choice for axial locating bearings. They also have good radial load capacity and low limiting speed.

Four-row tapered roller bearings are commonly used on the neck of cylinders, especially in steel mills. Their superior axial and radial load capacity means they are able to bear high combined loads without requiring lateral thrust bearings. These bearings are usually manufactured with a tapered or cylindrical hole in the center, and should be assembled as a complete unit in the correct housing.

These bearings are often made with special features, such as face notches, helical bore grooves, extended cones, and re-lubrication accommodations. The outer ring of four-row tapered roller bearings can be press-forged steel. The lubrication grooves on the inner and outer rings of these bearings are formed to prevent the bearings from sticking or slipping.

Cross tapered roller bearings

Double-cup cross tapered roller bearings have a double-row configuration that provides superior axial and radial performance. They are typically used in high-speed, low-friction applications. The cross configuration also allows for small space requirements. They are found in many different industries, including oil companies and cement plants.

These bearings feature a cage on the outer surface to prevent contamination. The cage also serves to evenly space the rollers and contains the roller assembly in a unified configuration. The cage has flanges that prevent the roller and cage assembly from separating from the raceway.

Double-cup cross tapered roller bearings have large-diameter end faces that abut against the thrust rib 40 of the cone for which they are mounted. This design keeps the rollers from being ejected into the spaces between the raceways.