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Basic ParametersBasic type
- The bearing model 3306 2RS belongs to double row angular contact ball bearings. Double row angular contact ball bearings have two rows of balls and can bear radial and axial loads simultaneously, and can work at a relatively high speed.
Meaning of numbersFor this basic model of 3306:
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Looking from left to right, the first digit “3” indicates that the type of bearing is a double row angular contact ball bearing.
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The subsequent “30” indicates the size series. The size series is used to determine the dimensional relationships such as the outer diameter and width of the bearing. Different size series can adapt to different installation spaces and load requirements.
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The last “06” indicates the inner diameter size of the bearing. The calculation method for the inner diameter is: inner diameter = 06×5 = 30mm (when the inner diameter code is less than 04, inner diameter = inner diameter code ×5).
Suffix meaning“2RS” is a suffix:
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“2” indicates double row, which corresponds to the “3” (double row angular contact ball bearing) in the previous type code.
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“RS” indicates that the bearing is equipped with a rubber seal (Rubber Seal). This kind of seal can prevent lubricant leakage and also prevent external contaminants such as dust and moisture from entering the bearing interior, thereby prolonging the service life of the bearing and improving the reliability of the bearing.
So, the 3306 2RS bearing is a double row angular contact ball bearing with an inner diameter of 30mm and equipped with a rubber seal. It can bear radial and axial loads and is suitable for working environments with relatively high speeds.
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