2013年7月30日星期二

four cylindrical roller bearings


four cylindrical roller bearings
Are separable bearings, inner and outer components (outer ring, complete roller) allows interchangeable assembly. Such bearings due to limited installation space for maximum dynamic load rating, often used in heavy machinery, such as rolling mill.Basic Types
Four cylindrical roller tapered bearing  there are three basic types: FC type, FCD-and FCDP type, as shown below.
listed in the table bearing outside diameter less than 400MM three basic types of bearing data and the corresponding Code of large foreign companies.
XLB may need to produce other size or structure of multi-row cylindrical roller bearings.NJ23 ... VH series
Are inseparable, such as five cage isolation bearing rolling elements, the internal friction received large speed limit. Full complement cylindrical roller bearings are mainly two kinds of single and double row, sealed single row and double row bearings are mainly used for transmission mechanism, and with sealed double row bearings are mainly used in lifting mechanism, in addition, XLB user can press other types of customized and structure full complement cylindrical roller bearings, the most common typesNJ23 ... VH Series: This series bearings are full self-locking roller bearing outer ring has two ribs, inner single-wall, can withstand axial force, the roller fixed on the outer ring, the inner ring even removal will not emerge.
NC Series: inner ring has two ribs, with an outer wall and a living pine ring, used as a fixed bearing, can withstand axial forces in both directions.
NCF Series: bearing inner ring has two ribs, only one outer wall, the wall on the other side there is a move to keep outer ring does not emerge from the bearings, these bearings can withstand axial one direction force

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