XU 12 0222

XU 12 0222 · Product image

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XU 12 0222 · Technical drawing

Brand
QIBR
Alternative brand
INA
Rolling element type
Roller
Measurement system
Metric
Weight
12 kg
Outer diameter
300 mm
Inner diameter
140 mm
Total width
36 mm
External hole circle diameter
270 mm
Internal hole circle diameter
170 mm
Number of mounting holes of the inner ring
12
Number of mounting holes of the outer ring
12
Hole diameter at inner ring
18 mm
Counter bore diameter1
/
Counter bore depth1
/
Hole diameter at outer ring
M16 mm
Counter bore diameter2
/
Counter bore depth2
/
Outer diameter of inner ring
220 mm
Inner diameter of outer ring
224 mm
Width of outer ring
30 mm
Width of inner ring
30 mm
Width
/
Gear type
No gear
Max. radial load (fixing screws)
65.5 kN
Basic static load rating (axial)
275 kN
Basic dynamic load rating (axial)
133 kN
Basic static load rating (radial)
131 kN
Basic dynamic load rating (radial)
85 kN
Temperature
-30 ℃ to +80 ℃
Bearing type
Cross roller slewing ring bearing
Ring material
42CrMo or 50Mn
Sealing material
NBR
Seal type
Closed type

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Description

The crossed roller bearing, without gear teeth, is preloaded for enhanced precision, sealed for protection, and includes a lubrication nipple on the ring without teeth for easy maintenance. This design ensures optimal performance in applications requiring high rotational accuracy and stability, such as in robotics, machine tools, and semiconductor manufacturing equipment. The preloaded configuration minimizes internal clearance, reducing vibration and improving positional accuracy during operation. Sealing prevents contaminants from entering, prolonging the bearing's service life in demanding environments. The lubrication nipple allows for convenient lubrication, ensuring smooth and reliable operation over extended periods.

QIBR - XU 12 0222 Slewing Bearing Characteristics

XU 12 0222 Slewing Bearing, can adapt to various harsh environments, long life, corrosion resistance. XU 12 0222 Slewing Bearing, can bear radial load, axial load and overturning moment at the same time, suitable for mechanical equipment requiring high stability.

XU 12 0222 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 - XU 12 0222 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 - XU 12 0222 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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