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Bearing internal clearance is defined

Date锛2013-9-23 9:51:07

Bearing internal clearance is a radial bearing ring relative to the other circles move total distance (radial internal clearance) or a total distance of axial movement (axial internal clearance).
Work clearance refers to the bearing clearance under real operating conditions.
Original clearance refers to the bearing clearance before is not installed.
Clearance values according to the size, is divided into three groups, one group is the fundamental group (or normal), small clearance section (C2), large clearance section (C3 and C4). There's a hot light, SUNTHAI of Santai's F&F, Japan, NSK, NTN and other brands have specialized CM Group (motor specific clearance).
Bearing clearance
Complement is used in everyday life, for example:
Under normal operating conditions should give preference to a basic group;
Clearance applies to inner and outer rings fit larger amounts of interference, or large temperature difference between the inner and outer rings, deep groove ball bearings need to be subjected to high axial load or the need to improve aligning performance, or if you need to improve bearing limit speed and reduces bearing friction torque, and other occasions
Small clearance applies to high rotation precision, the need for strict control of axial displacement of the shell hole, as well as the need to reduce vibration and noise.
When measuring bearing clearance, for stable measured value, typically measuring load bearing impose requirements.
Therefore, the resulting measurements have far exceeded the actual clearance (called the theory of clearance), an increase of elastic deformation in the measuring load.
For the roller bearings, however, due to the elastic deformation smaller, negligible.
Before installing the bearing internal clearance expressed in theoretical clearance.



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