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Two-Row Cylindrical Roller Radial Bearings FAQS

QWhat is TWO-ROW CYLINDRICAL ROLLER RADIAL BEARINGS?

ATimken now offers a broader range of full complement cylindrical roller bearings to meet the need for increased radial load carrying capacity by maximizing the number of rollers in a given envelope. The expanded offering includes multiple series of one-row and two-row designs starting at 100 mm bore. Size range: 100 mm bore to 2000 mm OD

QWhat are the USES of FOUR-ROW CYLINDRICAL ROLLER RADIAL BEARINGS?

AFour row cylindrical roller bearings mainly bear radial and axial combined load. The bearing capacity depends on the raceway angle of the outer ring, and the larger the angle is, the greater the bearing capacity is. This kind of bearing belongs to separate type bearing, which is divided into single row, double row and four row tapered roller bearings according to the number of rows of rolling elements in the bearing. The clearance of single row tapered roller bearing needs to be adjusted by the user during installation; the clearance of double row and four row tapered roller bearing has been given according to the user's requirements when the product is delivered from the factory, and does not need to be adjusted by the user.

QWhat are the METHODS TO ADJUST THE RADIAL CLEARANCE OF CYLINDRICAL ROLLER RADIAL BEARING?

AThe commonly used methods to adjust the radial clearance of full loaded cylindrical roller bearing are as follows: 1. The side clearance of the cylindrical and elliptical bearing shells can be adjusted by manual grinding and scraping or the method of repairing and scraping after the bearing split surface is padded and turned. 2. For the top clearance of cylindrical and elliptical bearing shells, the method of manual grinding and scraping or adding pad to the bearing split when the situation allows can be used for adjustment. 3. In principle, it is not allowed to repair and adjust the clearance of multi oil wedge fixed bearing bush. If the clearance is not appropriate, replace it with a new one. 4. For multi oil wedge tilting bearing pads, it is not allowed to repair and scrape the pads. If the clearance is not appropriate, replace the tiles. For tile with adjustable thickness, the amount of tile can be adjusted by adjusting the stainless steel pad on the back of the tile or reducing the thickness of the adjustment block. Pay attention to the thickness error of the tilting bearing bush with multiple oil wedges between the blocks of the same group shall be less than 0.01mm.

QWhat is the DESIGN ATTRIBUTES of SINGLE ROW CYLINDRICAL ROLLER BEARING?

ADesigned to ISO/DIN specified interchangeable boundary dimensions where available. Sold as a completely unitized assembly. Both single row and double row products available in same size range. Standard designs use NCF, NNCF nomenclature. Full complement construction, no cage included. High capacity, but operating speed may be an issue requiring close application scrutiny. Assembly outer ring design provides significant internal axial float capability.