Staticload and dynamic load examples

Liebherr roller bearings are suitable for medium to high loads. They are designed as standard in triple-row configurations with two axial and one radial roller raceway. Depending on the case of use, other designs and variants are however also available.

The wheel bearing and hub assembly of your dependable commuter or work vehicle is the ultimate mounting point for the wheel and tire assembly. It has several ...

Static loadingexamples

Ball bearings are particularly suitable for applications exerting low to medium loads on the bearings. Usually, polymer spacers are installed between the rolling elements, although bearing designs with steel or brass cages are also available.

Traditionally back pain in the nursing profession is associated with heavy lifting of patients. Although there is a strong relationship between heavy loads on the spine and lifting patients, literature indicates that there is a major factor that should not be underestimated: static load. Static load can be defined as the result of static, not moving, not dynamic, working positions. For example when a caregiver is washing a patient on a bed which is too low, her back is in a static (bended) stooped position up to several minutes. Exposure to static load is an underestimated silent killer of nurses musculoskeletal system . There is evidence from this cross-sectional study that static load can be reduced by a combination of introducing the right equipment, creating awareness and education.

Liebherr also manufactures gear rings, used for example in rope winch drives or for the yaw adjustment of wind turbines. The gear rings can also be configured in segments according to customer requirements.

Bearing designs with bayonet joints are used in the presence of a special adjacent construction. This is often the case with cranes.

Special forms of seals are always used whenever bearings are exposed to particularly harsh environmental conditions, and protect the slewing bearing, for example, from seawater penetration.

What isstatic loadingin the body

Assembled seal for high-pressure applications. GYLON® element offers excellent chemical resistance.

Static loadingback injury

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In addition to customised projects, our portfolio contains a comprehensive standard programme of one-piece Liebherr ball bearing slewing rings.

Nissan Altima Bearing-Support · Other Name: Bearing, Bearing Support · Position: Passenger Side · Replaces: 39774-10E02, 39774-5Y700, 39774- ...

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Liebherr has developed its own gear cutting machines for the milling of the gear rings. These ensure the best possible gearing results and guarantee optimum precision.

Staticload vs dynamic load

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Triple-row roller bearing slewing rings can be fitted according to need with specially-developed seal systems. These can protect the bearing in thrusters, for example, against the penetration of seawater while at the same time preventing the leakage of lubricants.

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2022222 — It's a very easy job to do! You could also use a socket of the right size to tap in both a Roller type pilot bearing or for a solid pilot busing too.

On account of their play-free mounting, cross roller bearings offer greater precision than traditional roller bearings. They are used above all in tunnel boring machines and in conveyor technology.

Static loadinginjury

In addition to customised projects, our portfolio contains a comprehensive standard programme of one-piece Liebherr combined roller and ball bearings.

In heavy machines, such as mining excavators, roller bearing slewing rings tend to be used mainly on account of the high loads.

Each rolling bearing has a designation that clearly indicates the type, dimensions, tolerances and internal clearance, if necessary with other important ...

Liebherr is one of the world's leading producers of slewing bearings. Our portfolio comprises many different types, manufactured in a wide range of dimensions and designs.

All of our slewing bearings can be manufactured with internal gears, external gears or without gearing. Special gearing, such as helical and worm gears, are also available upon request. The seal concept is also configured for each individual case of use, and takes account of particular environmental conditions, such as particularly saline or dusty air. The bearings can also be coated for extra corrosion protection.

In addition to customised projects, our portfolio contains a comprehensive standard programme of one-piece Liebherr roller bearing slewing rings.

Double-row four-point bearings can support significantly higher loads than single-row four-point bearings, for an equivalent diameter. They are used in applications with high loads and restricted installation space, such as for rotor blade adjustments on wind turbines.

Double-row ball bearing slewing rings are distinguished by their high cost-effectiveness and their robust design. They are used, for example, in crane technology.

Roller bearing slewing rings for tunnel boring machines are fitted with a preloaded retaining raceway. The cup springs for preloading the raceway ensure that the rolling elements never lose contact with the raceway, thereby guaranteeing optimised wear characteristics.

Plastic flanged sleeve bearings are a pivotal component in the realm of mechanical parts, offering a unique combination of durability and low friction for a ...

Tapered roller bearings can be subjected to radial and axial loads. They are suited to high load conditions. The tapered form of the rolling elements ensures optimum rolling characteristics. The play-free bearing mounting makes the tapered roller bearing particularly suitable for the highest precision and accuracy requirements

Dynamic load

Optimum rolling characteristics and ideal power distribution are guaranteed by the layout and design of the tapered rollers. This design is used, for example, as the main bearing in wind turbines or in tunnel boring machines.

The single row tapered roller bearings are mainly used for the main bearing arrangement in wind turbines. Optimum rolling characteristics and ideal force distribution are ensured by the layout and design of the tapered roller bearing.

Single-row four-point bearings are used, for example, for the slewing of excavators, the boom movement of tower cranes and as drive elements for large rope winches.

Combined roller and ball bearings are designed as standard with a roller raceway (supporting raceway) and a ball raceway (retaining raceway). This makes this type of design particularly suitable for high axial loads and harsh environmental conditions.

Static loadingErgonomics

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The combination of roller and ball bearing offers a cost-effective alternative to traditional roller bearing slewing rings. This bearing type is mainly designed for axial loads, and is frequently used in conveyor technology, for example with bucket excavators.

Bearing designs with bolt connections are used when in the presence of a special adjacent construction. This is often the case with cranes.

Image may differ from product. See technical specification for details. DZ187-1500-375-E2F Hydraulic rod seal, with primary and secondary sealing rings.