Bearings/Saddle Bearings for Hydraulic Pumps/Motors

Fluid & Pneumatics Sector Management – Your strong partner for hydraulic systems and pumps 

• Expert support 

• Complete bearing product range 

• Improved efficiency through tighter tolerances 

• Extended service life 

• X-life premium products 

• Certified quality to ISO/TS 16949:2002 

• Optimized bearing, seal and material combinations 

High-torque motors in radial piston or cam ring design

High-torque motors – ideal for operations requiring high torques, involving hard stops and abrupt reverse motions. Classic applications include machines and equipment, agricultural machinery, crushers, feed devices, rolling mills, paper machines and transport facilities

Typical for our bearings and components 

• Cylindrical roller bearings provide smooth operation with high static and dynamic radial load carrying capacity. 

• Steel sealing rings are characterized by low leakage and a small contactforce. The sealing force is precisely determined to ensure efficient seals and minimal friction. 

• Optimally adjusted, low-wear components, such as rolling elements with special coating, are used in high-torque motors.

Bent axis pumps and motors

Bent axis pumps are ready-to-mount functional units used in hydraulic systems to generate pressure. The stroke motion of the axially oscillating pistons is generated by the main output axis that is bent towards the rotor axis. Besides bearings, we offers geometrically accurate steel sealing rings with split butt joints in designs with centered or eccentric crowned outside diameter as well as with other contours. Our product range also includes high precision control disks and other fine blanked parts with consistently accurate contours and smooth, perpendicular cutting surfaces that can also be produced from metal composites. 

Hydraulics in construction machinery

Hydraulics is regarded as an indispensable source of power for earth moving equipment and transporters. Hydraulic cylinders with maintenance-free spherical plain bearings made by ELGES are coated with Elgoglide® in the sliding area, eliminating the need for lubrication. Our lowfriction dry plain bearings with high loadcarrying capacity are particularly suitable for oscillating motion with heavy loads. The stable, moisture-resistant connection between the sliding layer and the support body has been a successful solution for many years now. 

Axial piston pumps in swash plate design

The inclined drive pulley and the swash plate are firmly attached to the drive shaft while the cylinder block is stationary. The axial bearings transmit the high forces from the pistons that act in the direction of the stroke. Out of balance and radial forces are supported by stable, speed-optimized cylindrical roller bearings. Favorable bearing technology 

• Smooth and low-friction operation even with extremely high loads 

• Good static and dynamic load carrying capacity

Swash plate pumps with adjustable cradle

Our bearings provide support for the precise operation of excavators or road construction equipment with highly accurate positioning and constantly changing strength ratios. Full-complement or nearly fullcomplement cylindrical roller bearings allow precise settings for the flow rate, even at high pressures. Components such as bearing segments, pressure pads and steel sealing rings are also preferred choices. Ground inner rings with extremely wear resistant ceramic coating minimize leakage and abrasion of the seals.

Gear pumps

Gear pumps are use in almost all industrial sectors – they are inconspicuous and effective. These pumps supply coolants, transport foods, keep hydraulic systems in motion and are also used in mobile equipment, agricultural machinery and municipal vehicles. Our metal-polymer composite plain bearings or highquality needle roller bearings ensure that gears move with hardly any losses. The supply medium is generally used as a lubricant for the bearings. For the supply of fluids with little lubrication effects, needle roller bearings are increasingly used instead of plain bearings in order to achieve the longest service life possible for the gear pump. In addition, higher speeds can be achieved with decreasing heat generation.

Hydrostatic gearboxes

These gearboxes transfer continuously

variable driving force in quads, riding

lawnmowers, tractors and all-terrain

vehicles. In addition to rolling bearings

and plain bearings, Our precision parts

such as hollow pistons, valves and

fine blanked parts ensure reliable

Operation.