About the two row cylindrical roller bearing:
Double row cylindrical roller bearings: Double row cylindrical roller bearings are floating bearings, and their separability makes installation and disassembly convenient. A tight fit can be used for both ferrules. Double row cylindrical roller bearings have almost no inclination angle.
Double row cylindrical roller bearings have a cylindrical inner bore and a conical inner bore (bearing rear code plus K). This kind of bearing has the advantages of compact structure, large rigidity, large bearing capacity, small deformation after load, etc., and is especially suitable for machine tool spindle support. The conical inner hole can also play a role of slightly adjusting the play, and can simplify the structure of the positioning device, and is convenient for installation and disassembly. Commonly used double row cylindrical roller bearings have the following forms
Bearing characteristics of two row cylindrical roller bearing:
High carrying capacity
Due to its second row of rollers, double row cylindrical roller bearings are suitable for large radial loads.
Low friction (roller end / rib contact area)
The open flange design, along with the roller end design and surface finish, promotes the lubricant film, which reduces friction and results in a higher basic load rating.
The logarithmic curve profile reduces the edge stress at the roller/race contact and reduces the sensitivity to misalignment and shaft deflection.
Improve operational reliability
The surface treatment of the roller and raceway contact surfaces facilitates the formation of a hydrodynamic lubricating oil film.
Separable and interchangeable
The separate components of the double row cylindrical roller bearing are interchangeable. This facilitates installation, disassembly, and maintenance inspection.
High speed capability
The cage design is suitable for high speed, fast acceleration and shock loads.
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