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Product information

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Recommendations

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Product data Page ............. 3 Application advice Page ............. 32

Application of bearings

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Conventional bearingarrangements

The non-locating bearing must beable to industrial slide axially, usually inside the housing, to accommodate shaft expan- sion or contraction. To achieve this movement,one of the bearing ringsmust be mounted with a loose fit and axial space provided for movement. Under certain loading conditions,however, this bearing arrangement may not be suitable. The ring with a loose fit can creep and damage the housing. It can also result in accelerated wear and increased vibration, additional mainten- ance and repair costs. It also means that the shaft is supported less rigidly in the radial direction.In these situations, SKF recommends a new self-aligning system. Conventional self-aligning bearing ar-rangements using two spherical roller bearings ( âž” fig ) – one applied as a locating, the other as a non-locating bearing – are the basis of many indus- trial bearing arrangements. This is a simple robust arrangement capable of withstanding high radial as well as thrust loads, whilst easily accommodat- ing misalignments.
1 Fig 1 Conventional spherical roller bearing arrangement with locating (left) and non-locating bearing (right) 21