XA 18 0309 N

XA 18 0309 N · Product image

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XA 18 0309 N · Technical drawing

Brand
QIBR
Alternative brand
INA
Rolling element type
Roller
Measurement system
Metric
Weight
30 kg
Outer diameter
408.4 mm
Inner diameter
235 mm
Total width
60 mm
External hole circle diameter
359 mm
Internal hole circle diameter
259 mm
Number of mounting holes of the inner ring
24
Number of mounting holes of the outer ring
24
Hole diameter at inner ring
13 mm
Hole diameter at outer ring
13 mm
Outer diameter of inner ring
308 mm
Inner diameter of outer ring
310 mm
Width of inner ring
52.5 mm
Width of outer ring
52.5 mm
Step diameter inner ring
237 mm
Width1
8 mm
Step diameter outer ring
312 mm
Width2
5 mm
Gear P.C.D
400 mm
Module
5 mm
Number of teeth
80 mm
Gear type
External gear
Tooth width
52.5 mm
Max. radial load (fixing screws)
99.1 kN
Normal permissible tooth forces
17.3 kN
Max. permissible tooth forces
25.1 kN
Basic static load rating (axial)
440 kN
Basic dynamic load rating (axial)
270 kN
Basic static load rating (radial)
215 kN
Basic dynamic load rating (radial)
172 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 with external gear teeth is preloaded for enhanced precision, sealed for protection, and includes a lubrication nipple on the circumference of the ring without teeth. This configuration ensures optimal performance in applications requiring high rotational accuracy and stability, such as robotics, machine tools, and semiconductor manufacturing equipment. The preloaded design minimizes internal clearance, reducing vibration and improving positional accuracy during operation. Sealing prevents contaminants from entering, prolonging the bearing's service life in challenging environments. The lubrication nipple allows for convenient lubrication, ensuring smooth and reliable operation over extended periods.

QIBR - XA 18 0309 N Slewing Bearing Advantages and Applications

XA 18 0309 N Slewing Bearing has strong multi-directional load-bearing capacity and high rigidity. Inner diameter is 235 mm,Outer diameter is 408.4 mm,Total width is 60 mm,Weight is 30 kg. It is suitable for submersible engineering drilling rigs, road rollers, self-propelled aerial work platforms, and packaging machinery, etc. It is the most widely used bearing in working conditions that require multi-directional loads.

QIBR - XA 18 0309 N Slewing Bearing Characteristics

XA 18 0309 N Slewing Bearing, not easy to deform, uniform force, low cost. XA 18 0309 N Slewing Bearing, can bear radial load, axial load and overturning moment at the same time, suitable for mechanical equipment with complex load direction.

XA 18 0309 N 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 - XA 18 0309 N 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 - XA 18 0309 N 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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