Cylindrical Roller Bearing
SKF Cylindrical roller bearings are available in a wide range of designs, series, variants and sizes. The main design differences are the number of roller rows and the inner/outer ring flanges as well as cage designs and materials.
The bearings can meet the challenges of applications faced with heavy radial loads and high speeds. Accommodating axial displacement (except for bearings with flanges on both the inner and outer rings), they offer high stiffness, low friction and long service life.
Cylindrical roller bearings are also available in sealed or split designs. In sealed bearings, the rollers are protected from contaminants, water and dust, while providing lubricant retention and contaminant exclusion. This provides lower friction and longer service life. Split bearings are intended primarily for bearing arrangements which are difficult to access, such as crank shafts, where they simplify maintenance and replacements.
Cylindrical roller bearings are defined as bearings that utilize solid or helically wound hollow rollers with a length-to-diameter ratio of approximately 1:1 to 1:3, designed to support heavy radial loads and allow free axial movement of the shaft. They are characterized by low friction, making them suitable for relatively high-speed applications.
Cylindrical roller bearings such as the one illustrated in Fig. 2.12 are designed to operate with large radial and moderate axial loads. The rollers are usually not true cylinders, but are crowned or otherwise profiled to homogenize stress concentrations and mitigate the effects of misalignment. Cylindrical roller bearing types are distinguished by the location of their roller guide flanges. For example, the cylindrical roller bearing depicted in Fig. 2.12 has guide flanges located on one ring and absent on the other. Moderate axial loads can be accommodated by cylindrical roller bearings that possess guide flanges, and the flanges permit the bearing to accommodate axial displacement of a shaft relative to the housing in both directions.
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