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Accommodating Misalignment

17 January 2013

A recent survey concluded that around 25% of all rolling element bearings fail prematurely, due to ineffective and inefficient seals.

One design consideration often overlooked which can negate a seal's effectiveness and result in early failure is the issue of shaft misalignment.

All Revolvo’s SRB split roller bearings are designed to accommodate shaft misalignment without reducing the effectiveness of the seal. The SRB bearing's design locates both the bearing and the seal within a separate swivelling housing, which is then located within a support pedestal. The external surface of the housing and the internal surface of the support pedestal are spherical, creating a swivelling socket joint which accepts up to +/-3 degrees of static misalignment and ensures that the seals always remain concentric to the shaft. This provides optimum sealing performance which ensures that the bearing is far more likely to achieve its designed life.

 
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