Types of bearings

Thomson 60 Case Linear Race shafting has been popular for decades for its consistent reliability and performance. To help customers get this high-quality, lab-tested product into their hands as quickly as possible for their time-sensitive design projects, Thomson goes to great lengths.

bearing数学

Thomson invented the RoundWay Linear roller bearing for use in high load, heavy duty applications. The RoundWay roller bearing combines the high load capacity of hardened and ground steel recirculating rollers with a rigid malleable iron mounting block providing high load capacity with smooth linear travel.  The chain-connected rollers allow the RoundWay to travel at extremely high speeds in unforgiving, contaminated environments.

Types ofbearing with diagram

Tapered roller bearings are used in car hubs, where they are usually mounted in pairs facing opposite directions so that they can handle thrust in both directions.

Roller thrust bearings like the one illustrated below can support large thrust loads. They are often found in gearsets like car transmissions between gears, and between the housing and the rotating shafts. The helical gears used in most transmissions have angled teeth -- this causes a thrust load that must be supported by a bearing.

Bearingtypes

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There are many types of bearings, each used for different purposes. These include ball bearings, roller bearings, ball thrust bearings, roller thrust bearings and tapered roller thrust bearings.

Types of bearingspdf

Ball bearings, are probably the most common type of bearing. They are found in everything from inline skates to hard drives. These bearings can handle both radial and thrust loads, and are usually found in applications where the load is relatively small.

From shafting and supports, to round and square rail guides, linear motion systems to pillow blocks, Thomson demonstrates how our products excel as the best solution in a wide array of industrial applications.

Types of bearingsand their applications

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Thrust bearing

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A variation of this type of bearing, called a needle bearing, uses cylinders with a very small diameter. This allows the bearing to fit into tight places.

Bearing

Thomson invented the RoundWay Linear roller bearing for use in high load, heavy duty applications. The RoundWay roller bearing combines the high load capacity of hardened and ground steel recirculating rollers with a rigid malleable iron mounting block providing high load capacity with smooth linear travel.  The chain-connected rollers allow the RoundWay to travel at extremely high speeds in unforgiving, contaminated environments.

In a ball bearing, the load is transmitted from the outer race to the ball, and from the ball to the inner race. Since the ball is a sphere, it only contacts the inner and outer race at a very small point, which helps it spin very smoothly. But it also means that there is not very much contact area holding that load, so if the bearing is overloaded, the balls can deform or squish, ruining the bearing.

Ball thrust bearings like the one shown below are mostly used for low-speed applications and cannot handle much radial load. Barstools and Lazy Susan turntables use this type of bearing.

With the special machining add-on to the Thomson online shafting selector tool, the burden of creating 2D drawings is relieved, and the amount of time needed to specify the machined shaft is dramatically reduced.

Roller bearings like the one illustrated below are used in applications like conveyer belt rollers, where they must hold heavy radial loads. In these bearings, the roller is a cylinder, so the contact between the inner and outer race is not a point but a line. This spreads the load out over a larger area, allowing the bearing to handle much greater loads than a ball bearing. However, this type of bearing is not designed to handle much thrust loading.