Introduction to Bearing SA206/P4
The "SA206" in SA206/P4 refers to the basic model of the bearing, and the "/P4" denotes its precision grade. According to search results, the SA206 series belongs to eccentric bore insert ball bearings with a spherical outer surface. These bearings typically feature built-in seals and are pre-lubricated with grease, designed for easy installation. They are particularly suitable for applications requiring self-alignment, such as agricultural machinery and conveying systems
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Basic Dimensions: The standard SA206 bearing has a bore diameter of 30 mm, an outer diameter of 62 mm, and a width of 16 mm. It's important to note that different sources may list slightly varying dimensions for the overall width or specific features. For instance, some listings specify a width of 16mm
, while others note related dimensions like the locking collar width (e.g., 35.7mm for the overall bearing unit including the collar).Meaning of the Precision Grade /P4: The /P4designation signifies a super-precision grade. Bearings meeting this grade have extremely tight dimensional tolerances and very low running accuracy errors. This results in significantly reduced vibration and noise during equipment operation, making them primarily intended for high-speed, high-precision applications like machine tool spindles and precision instruments
Compared to standard precision SA206 bearings, the SA206/P4 variant offers superior rotational accuracy, higher limiting speeds, and smoother operation, albeit at a higher cost
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