VLU 20 0544

VLU 20 0544 · Product image

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VLU 20 0544 · Technical drawing

Brand
QIBR
Alternative brand
INA
Rolling element type
Ball
Measurement system
Metric
Weight
31 kg
Outer diameter
648 mm
Inner diameter
434 mm
Total width
56 mm
External hole circle diameter
620 mm
Internal hole circle diameter
462 mm
Number of mounting holes of the inner ring
14
Number of mounting holes of the outer ring
10
Hole diameter at outer ring
18 mm
Hole diameter at inner ring
18 mm
Outer diameter of inner ring
542.5 mm
Inner diameter of outer ring
545.5 mm
Width of outer ring
47.5 mm
Width of inner ring
47.5 mm
Gear type
No gear
Basic static load rating (axial)
385 kN
Basic dynamic load rating (axial)
188 kN
Basic static load rating (radial)
145 kN
Basic dynamic load rating (radial)
123 kN
Temperature
-20 ℃ to +100 ℃
Bearing type
Four-point contact slewing bearing with flange
Ring material
42CrMo or 50Mn
Sealing material
NBR
Seal type
Closed type
Ball material
AISI 52100

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Description

The Light series 20 slewing bearing without gear teeth is designed for applications that do not require gear mechanisms for rotation control. It features selectable internal clearance, allowing adjustment to accommodate thermal expansion and ensure optimal operation under varying conditions. These bearings are sealed to protect against contamination and retain lubrication, enhancing durability and reducing maintenance requirements. The inclusion of a lubrication nipple on the circumference of the outer ring facilitates convenient lubrication access, ensuring smooth and reliable performance over extended periods. Light series 20 slewing bearings are ideal for applications such as turntables, conveyor systems, and small cranes, where simplicity, reliability, and ease of maintenance are essential.

QIBR - VLU 20 0544 Slewing Bearing Advantages and Applications

VLU 20 0544 Slewing Bearing, strong anti-overturning ability, small friction coefficient, Inner diameter is 434 mm，Outer diameter is 648 mm，Weight is 31 kg, suitable for grabbers, graders, dismantler, marine cranes and rotary drilling rigs, etc., is the most widely used bearing in working conditions requiring greater impact force.

QIBR - VLU 20 0544 Slewing Bearing Characteristics

VLU 20 0544 Slewing Bearing, less wear and tear, easy installation. VLU 20 0544 Slewing Bearing, can simultaneously withstand radial load, axial load and overturning moment, suitable for mechanical equipment that withstands high loads.

VLU 20 0544 Slewing Bearing Features and Advantages

Compact design: Compact structure, it can be installed in space-constrained environments, and has a wider range of applications.

High load capacity: It can withstand axial, radial and overturning moments at the same time, suitable for heavy-duty applications.

Superior precision: Maintain high precision during use and reduce errors in equipment operation.

High temperature and wear resistance: Made of high-temperature bearing steel, with good wear resistance and strength.

Application: Widely used in lifting machinery, engineering machinery, transportation machinery, mining machinery, metallurgical machinery, medical equipment, ships, warships, radar, wind power generation and other fields.

QIBR - VLU 20 0544 Slewing Bearing Optimization

Grease replacement: Replace grease with other greases such as SFK, Mobil, Krupp, etc. to optimize the working performance and use conditions of the bearing.

Coating optimization: Provide other coatings such as zinc plating or nickel plating to enhance corrosion resistance and wear resistance and extend its service life in harsh environments.

Process optimization: Optimize the bearing production process, increase the bearing operating temperature range, and improve the bearing accuracy and stability.

More customization: QIBR can optimize the bearing structure design according to customers’ drawings or equipment requirements to meet equipment needs.

QIBR - VLU 20 0544 Slewing support bearing quality control

Dimension measurement: Use a variety of professional high-precision instruments to measure multiple dimensions of the bearing, with the highest accuracy up to 0.01mm.

Rotation accuracy: Use a dial indicator to measure small flaws or deviations on the bearing surface, with a measurement accuracy of up to 0.01mm.

Hardness measurement: Use a Leeb hardness tester to measure the bearing surface hardness, with a measurement accuracy of ±6HLD.

Metallographic analysis: Use a professional metallographic microscope to analyze the internal metallographic structure of the metal.

Geometric tolerance: Use a roundness meter to measure the bearing geometry and relative position.

Noise monitoring: Use a vibration meter to monitor the vibration during operation and obtain noise data.

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