Plain Bearings
Many applications require spherical bearings that are suitable for oscillating movements and that can accommodate misalignment. Rolling bearings only partly fulfil these requirements as they are generally designed for continuous rotation and can only accommodate limited misalignment. Therefore, SKF manufactures spherical plain bearings, rod ends and bushings to provide an economical solution to these challenges.
SKF Spherical plain bearings, rod ends and bushings are produced in various designs and with different sliding contact surface combinations. Each design and combination has characteristic properties which makes it particularly suitable for certain applications.
SPHERICAL PLAIN BEARINGS AND ROD ENDS
Radial spherical plain bearings
Angular Contact Spherical Plain Bearings
Trust Spherical Plain Bearings
Rod Ends
Radial spherical plain bearings
Radial spherical plain bearings
Radial spherical plain bearings have an inner ring with a sphered convex outside diameter and an outer ring with a correspondingly sphered but concave inside surface. Their design makes them particularly suitable for bearing arrangements where alignment movements between shaft and housing have to be accommodated, or where oscillating or recurrent tilting or slewing movements must be possible at relatively slow sliding speeds, often accompanied with heavy loads.
Angular Contact Spherical Plain Bearings
Angular Contact Spherical Plain Bearings
These bearings are well suited for accommodating combined (radial and axial) loads. Single angular contact spherical plain bearings can only accommodate axial loads acting in one direction. These bearings can be separated, enabling the rings to be mounted separately.
Trust Spherical Plain Bearings
Trust Spherical Plain Bearings
Thrust spherical plain bearings have a convex spherical surface on the shaft washer and a corresponding concave spherical surface in the housing washer. They are intended to accommodate axial loads primarily but can also accommodate combined (radial and axial) loads. The radial load component of a combined load should not exceed 50% of the axial load component. When radial loads are larger, it is advisable to combine thrust bearings with radial bearings in the GE dimension series . Thrust spherical plain bearings are separable, e.g. shaft and housing washers can be mounted separately.
Rod Ends
Rod Ends
Rod ends consist of an eye-shaped head with integral shank that forms a housing for a spherical plain bearing. As a rule, rod ends are available with left- or right-hand female (internal) or male (external) threads.
SKF supplies rod ends with a threaded shank with a right-hand thread as standard. With the exception of rod ends with the designation suffix VZ019, all rod ends are also available with a left-hand thread. They are identified by the designation prefix L.
BUSHINGS, THRUST WASHERS AND STRIPS
Bushings
Thrust Washers
Strips
Bushings
Bushings
SKF manufactures bushings in various designs and from different materials. Therefore, SKF offers a wide assortment of bushings available from stock.
Bushings are suitable for rotating, oscillating and linear movements, whereas straight (cylindrical) bushings can accommodate radial loads only and flanged bushings can accommodate radial and axial loads in one direction.
Each combination of bushing design and material has characteristic properties and makes a bushing particularly suitable for certain applications.
Thrust Washers
Thrust Washers
SKF composite dry sliding thrust washers are designed for applications where axial space is limited, maintenance is not possible and where lubricant starvation can occur.
As well as for composite bushings and strips, SKF manufactures composite thrust washers as standard from PTFE and POM composite materials.
Strips
Strips
SKF composite dry sliding strips are designed for applications where axial space is limited, maintenance is not possible and where lubricant starvation can occur. Strips can be bent, pressed or coined to form flat linear guides, for example, L- or V-shaped profiles or other types of dry sliding components, and fit the actual application.
As well as for composite bushings and thrust washers, SKF manufactures composite strips as standard from PTFE and POM composite materials.
