Main applications include automotive engines, transmissions, pumps, excavator track rollers, overhead cranes, and compressors.

Magneticbearings

Tapered roller bearings have an adjustable contact angle between the inner and outer rings to accommodate different load conditions. Generally, the larger the contact angle of tapered roller bearings, the higher the axial load they can bear. The design of tapered roller bearings is such that the contact lines of the rollers with the inner and outer raceways extend to meet at the same point on the bearing axis, enabling pure rolling.

Thrust ball bearings are designed to support axial loads and consist of three main components: the shaft washer (upper washer), the housing washer (lower washer), and the bearing cage with steel balls. Typically, the diameter of the shaft washer is slightly smaller than that of the housing washer, while the diameter of the cage matches that of the shaft washer. It's crucial to note that thrust ball bearings can only support axial loads and should not be subjected to radial loads.

Rolling bearing

Main applications include small electric motors, automotive transmissions, gearboxes in machine tools, and other components.

Angular contact ball bearings are designed to handle both radial and axial loads simultaneously. They have inclined contact surfaces and can support higher axial loads than deep groove ball bearings.

Main applications include papermaking machinery, reduction gears, railway vehicle axles, printing machinery, woodworking machinery, and various industrial gearboxes.

A sleeve bearing (also known as a bushing bearing or plain bearing) is a straightforward and fundamental type of bearing. It primarily consists of an inner metal sleeve (known as the bushing) and an outer metal sleeve. Between these two sleeves lies a layer of special lubricating material, typically a sliding surface coated with grease or oil.

Ballbearing

Deep groove ball bearings are the most widely used type of rolling bearings. They are characterized by low frictional resistance, high speed, and can be used in machinery that experiences either radial loads or combined radial and axial loads. They are also suitable for applications with axial loads.

⚠️The following bearing rankings do not imply a specific order, as each type of bearing has its unique advantages and suitable scenarios.

Main applications include automotive components such as front and rear wheels, transmissions, and differential small gear shafts. They are also used in construction machinery, large agricultural machinery, and gear reduction devices in railway vehicles.

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ballbearing中文

The mentioned types represent common bearings used in various applications. In real-world scenarios, a combination of different bearing types may be employed to meet complex motion and load requirements. Different industries and applications may have specific demands. Therefore, when selecting bearings, it's crucial to carefully consider various factors, including load types, speed, precision, and working environment.

Bearing

The greater the contact angle, the higher the axial load-carrying capacity. The contact angle is the angle between the line connecting the contact points of the ball and raceway in the radial plane and the vertical line to the bearing axis. There is a contact angle between the race and the ball, with standard contact angles being 15°, 30°, and 40°. A larger contact angle provides higher axial load capacity, and a smaller contact angle is advantageous for high-speed rotation.

In this article, we will explore the significance of the ball bearing size chart and understand how to interpret and utilize it effectively.

Types of bearings

Deep groove ball bearings are the most commonly used type of ball bearings. They have deep raceway grooves on both the inner and outer rings, enabling them to handle radial and axial loads.

In industrial and mechanical applications, there are various types of bearings, and their usage depends on specific applications and requirements. Here are some commonly used and widely adopted types of bearings:

It is commonly referred to as "bearing" in English, while in Taiwan, it is usually called "軸承". The fundamental principle of a bearing involves the placement of rolling elements, such as balls, needles, or rollers, between the inner and outer rings to facilitate smooth rotation of the shaft.

Needle roller bearings are a type of bearing that performs well at high speeds. Their rollers are guided by a special-shaped, highly rigid, and precise retainer, resulting in extremely low dimensional errors. Despite their smaller cross-sectional area, needle roller bearings have high load-carrying capacity, making them particularly suitable for bearing configurations with limited radial space.

Spherical roller bearings, due to the alignment of the arc center of the outer race with the bearing center, possess self-aligning capabilities. This allows automatic adjustment for any misalignment caused by shaft or housing deflection, ensuring the correct alignment of the axis. These bearings can withstand radial loads and bidirectional axial loads, especially excelling in their ability to handle large radial loads and impact loads.

Main applications include machine tool spindles, high-frequency motors, gas turbines, centrifugal separators, differential small gear shafts, air compressors, fuel injection pumps, and printing machinery.