Tapered Roller Bearings SKF 33020

The SKF 33020 tapered roller bearing accommodates high combined radial and axial loads in one direction, with dimensions of 100 × 150 × 39 mm.

The 33020 tapered roller bearing is a single-row rolling bearing designed for demanding applications in mechanical and plant engineering. In this design, tapered rolling elements roll on conical raceways, enabling the bearing to accommodate combined loads from both the radial and axial directions. The complete bearing assembly comprises the inner ring, including the set of rollers, and the corresponding outer ring. The integrated sheet steel cage guides the rolling elements and maintains a constant, uniform spacing between the rollers.

What loads does the 33020 tapered roller bearing accommodate?

Tapered roller bearings simultaneously accommodate high radial forces and single-direction axial forces. Typical applications include bearings subjected to combined loads in drive and gearbox units. As a single bearing can only accommodate axial forces in one direction, they are usually fitted in pairs in an O or X arrangement with a second bearing positioned opposite. This arrangement enables the precise guidance of rotating shafts.

How are 33020 tapered roller bearings fitted and adjusted?

Tapered roller bearings are not self-retaining. The inner ring with roller cage can be fitted separately from the outer ring, which facilitates handling during shaft and housing assembly. As this bearing belongs to tolerance class P0/PN or ABEC 1, it complies with the standard used in mechanical engineering. During installation, the operating clearance or preload is adjusted axially via the mating bearing. The permissible temperature range is between –30 and +120 degrees Celsius.