Thrust Roller Bearing
Rolling bearings are a very important component in supporting and guiding rotating or oscillating components like shafts, axles, and wheels while transferring loads between different parts of a machine.
They are designed to offer high precision and minimal friction, allowing for smooth, high-speed rotation and reducing noise, heat, energy consumption, and wear.
Cost-effective and standardized, rolling bearings follow national or international dimension standards, making them easily replaceable and integral to efficient machine operation.
Types of Thrust Bearings
Cylindrical roller thrust bearings are built to support heavy axial loads and offer strong rigidity. They have a simple design with a brass cage, making them durable and reliable. These bearings work well at low speeds but are not suitable for high speeds due to roller sliding. They are commonly used in rotary work tables, powdering machine tables, and extruders.
This type of bearings have two types, one is TT and the other one is TTF. TT bearings usually have a rib on the housing washer that helps guide the shaft precisely. TTF bearings do not have this rib, allowing them to handle some misalignment during operation. This makes TT bearings better for precise applications and TTF bearings more flexible when slight misalignment is expected.
Spherical roller thrust bearings are self-aligning and handle mounting errors and shaft deflection well. They have a high capacity for axial loads. The E-type offers even more load capacity with a pressed steel cage, while machined brass cages are best for high-speed and horizontal shaft applications. These bearings are used in equipment like air preheaters, extruders, injection molders, excavators, and cranes.
Cylindrical roller thrust bearings
Cylindrical roller thrust bearings are built to support heavy axial loads and offer strong rigidity. They have a simple design with a brass cage, making them durable and reliable. These bearings work well at low speeds but are not suitable for high speeds due to roller sliding. They are commonly used in rotary work tables, powdering machine tables, and extruders.
Tapered roller thrust bearings
This type of bearings have two types, one is TT and the other one is TTF. TT bearings usually have a rib on the housing washer that helps guide the shaft precisely. TTF bearings do not have this rib, allowing them to handle some misalignment during operation. This makes TT bearings better for precise applications and TTF bearings more flexible when slight misalignment is expected.
Spherical roller thrust bearings
Spherical roller thrust bearings are self-aligning and handle mounting errors and shaft deflection well. They have a high capacity for axial loads. The E-type offers even more load capacity with a pressed steel cage, while machined brass cages are best for high-speed and horizontal shaft applications. These bearings are used in equipment like air preheaters, extruders, injection molders, excavators, and cranes.
Positioning Requirements for Cylindrical Roller Thrust Bearings
Cylindrical roller thrust bearings do not require extremely precise positioning of the fixed-side ring (outer ring). However, it is important to use a guide to ensure the raceway remains correctly aligned and does not shift or protrude from the rolling surface of the rollers. This helps maintain the bearing’s performance and longevity, preventing potential issues such as uneven wear or reduced load capacity.
Radial Load Capacity of Thrust Roller Bearings
Thrust roller bearings, with the exception of cylindrical roller thrust bearings and some types of tapered roller thrust bearings (such as the TTF type), can theoretically handle radial loads up to a certain percentage of the axial load. However, stable operation under such conditions requires strict limitations and careful management.
