The bearings are intended for lifting gear, conveying systems, hydraulic pumps, vehicle transmission systems, static gearboxes and wheel bearing arrangements.The new X-life T7FC single row tapered roller bearings use through-hardened premium material (rather than case hardened), which gives higher resistance to solid particles. In addition, Schaeffler has modified the logarithmic profile of the raceways and the outside surface of the rollers, which compensates for stress peaks under high loads and any possible misalignment.
Due to the optimised surfaces, an elasto-hydrodynamic lubricant film builds up even at very low speeds. This enables higher loads on the bearing immediately after start up.
Higher dimensional and running accuracies, in combination with improved surface topography, reduce friction and heat to a considerable degree. The improved contact geometry of the inner ring ribs and roller end faces also reduces friction, resulting in less strain on the lubricant inside the bearing.
The bearings comprise solid inner and outer rings with tapered raceways and tapered rollers, with cages made from pressed sheet steel. The inner ring, together with the cage and rollers, can be fitted separately from the outer ring.
Bore diameters for the X-life bearings are between 45mm and 95mm and the bearings can be used at operating temperatures between 30°C up to 120°C.
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