Ball bearing 6300 is a deep groove ball bearing

The ball bearing 6300 is a deep groove ball bearing. The number of rolling elements in this bearing is 7.The code 6 in center bearing indicates that it is a single-row deep groove ball bearing. 3 is the size series code, which indicates the combination of the bearing diameter series or width series.

Ball bearing 6300 is the most representative rolling bearings with a wide range of uses. They are suitable for high or even extremely high speed operation, and are very durable and do not require frequent maintenance.
Ball bearing 6300 has a small friction coefficient, a high limit speed, a simple structure, a low manufacturing cost, and is easy to achieve high manufacturing precision. The size range and form vary widely, and are used in precision instruments, low-noise motors, automobiles, motorcycles, and general machinery. They are the most widely used type of bearings in the machinery industry.

The purpose of ball bearing 6300 is to determine the relative position of two parts (usually a shaft and a housing) and to ensure their free rotation while transmitting loads between them. At high speeds (for example in gyroscopic ball bearings), this purpose can be extended to include free rotation with almost no wear in the center bearing.
To achieve this state, the two parts of the ball bearing 6300 are separated by a coherent fluid film called an elastohydrodynamic lubrication film. Denhard showed that the elastohydrodynamic lubrication film can be maintained not only when the bearing is subjected to load on the shaft, but also when the bearing is preloaded so that the positioning accuracy and stability of the shaft does not exceed 1 microinch or 1 nanoinch.
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