Bearing sizechart

Which selection criteria to use depends on the bearing's operating conditions. For applications where bearings are running under normal operating conditions, use size selection based on rating life. For applications where bearings are running under low speeds or bad lubrication conditions, or where occasional peak loads occur, use size selection based on static load. In some applications, both selection criteria must be considered.

The size of a bearing is typically measured by its inner diameter (ID), outer diameter (OD), and width (W), and listed in the format "ID x OD x W." These measurements are usually given in millimeters, but can also be converted into inches. In fact, most bearing manufacturers and suppliers provide sizes in both metric and imperial systems.

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How to size a bearingby hand

Bearings vary greatly in size. The smallest "miniature bearings" in the world have an outer diameter of 2mm and an inner diameter of 0.6mm. On the other hand, large bearings can reach up to 6 meters in outer diameter and are used in massive tunnel boring machines for tunnel excavation.

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

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.

Bearingnumber andsizechart pdf

Each set of these measurements corresponds to a series number, often marked directly on the bearing. There are numerous bearing size charts available in the market to help identify specific bearing dimensions. The 6000, 6200, and 6300 series are the most commonly used standard deep groove ball bearing series, with sizes ranging from 10 x 26 x 8 mm (0.394 x 1.024 x 0.315 inches) to 240 x 440 x 72 mm (9.448 x 17.322 x 2.834 inches).

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.

Bearing sizecalculator

Different sizes of bearings are used in different industries. Smaller ball bearings have more limited load capacities and are used in applications where space efficiency is more important than load capacity. Larger bearings have greater load capacities and are used for heavy-duty industries such as agriculture machinery, mining and drilling equipment, or heavy power tools. The proper bearing size is essential for optimal performance and to safeguard that the bearing can withstand the required load and provide the expected life.