18590/18520/Q SKF taper roller bearings, single row


  • 41.275mm

  • 73.025mm

  • 16.667mm

  • Inch

  • SKF


SKF Tapered roller bearings have tapered inner and outer ring raceways and tapered rollers. They are designed to accommodate combined loads, i.e. simultaneously acting radial and axial loads. The geometry and surface finish of the roller ends and the area on the flange that makes contact with the roller ends have been optimized to promote and maintain the formation of a lubricant film. This reduces friction and frictional heat as well as flange wear. The bearings can better maintain preload and run at reduced noise levels. The rollers used in SKF tapered roller bearings are made to such close tolerances that they are virtually identical. These extremely close tolerances, together with the precision of the raceway profiles, provide optimal load distribution over the rollers to reduce noise and vibration levels and enable preload to be set more accurately. TQ-line tapered roller bearings are identified by the designation suffix Q and have operating characteristics that clearly set them apart from bearings made to conventional designs. The logarithmic contact profile provides optimum load distribution in the roller / raceway contact area to keep stress peaks within acceptable limits, even under slight misalignment. Like SKF Explorer bearings, the roller end / flange contact area of TQ-line tapered roller bearings is designed to reduce friction and wear at start-up. Normally the bearings do not need running-in procedures after mounting. Bearings that are preloaded experience only a small, controlled loss of initial preload.

18590/18520/Q SKF

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