XA 12 0235 N
- Brand
- QIBR
- Alternative brand
- INA
- Rolling element type
- Roller
- Measurement system
- Metric
- Weight
- 13.3 kg
- Outer diameter
- 318.8 mm
- Inner diameter
- 171 mm
- Total width
- 40 mm
- External hole circle diameter
- 275 mm
- Internal hole circle diameter
- 195 mm
- Number of mounting holes of the inner ring
- 12
- Number of mounting holes of the outer ring
- 12
- Hole diameter at inner ring
- 13 mm
- Hole diameter at outer ring
- 13 mm
- Outer diameter of inner ring
- 234 mm
- Inner diameter of outer ring
- 236 mm
- Width of inner ring
- 35 mm
- Width of outer ring
- 35 mm
- Step diameter inner ring
- 173 mm
- Width1
- 6 mm
- Step diameter outer ring
- 238 mm
- Width2
- 2.5 mm
- Gear P.C.D
- 312 mm
- Module
- 4 mm
- Number of teeth
- 78 mm
- Gear type
- External gear
- Tooth width
- 35 mm
- Max. radial load (fixing screws)
- 49.6 kN
- Normal permissible tooth forces
- 11 kN
- Max. permissible tooth forces
- 16.1 kN
- Basic static load rating (axial)
- 235 kN
- Basic dynamic load rating (axial)
- 135 kN
- Basic static load rating (radial)
- 115 kN
- Basic dynamic load rating (radial)
- 86 kN
- Temperature
- -30 ℃ to +80 ℃
- Bearing type
- Cross roller slewing ring bearing
- Ring material
- 42CrMo or 50Mn
- Sealing material
- NBR
- Seal type
- Closed type
Tell us your operating requirements and required quantity.
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 12 0235 N Slewing Bearing Advantages and Applications
XA 12 0235 N Slewing Bearing has strong multi-directional load-bearing capacity and high rigidity. Inner diameter is 171 mm,Outer diameter is 318.8 mm,Total width is 40 mm,Weight is 13.3 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 12 0235 N Slewing Bearing Characteristics
XA 12 0235 N Slewing Bearing, not easy to deform, uniform force, low cost. XA 12 0235 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 12 0235 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 12 0235 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 12 0235 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.
Features & benefits
Crossed toiler bearing, external gear teeth, preloaded, sealed. lubrication nipple on circumference of ring without teeth.
The outer ring has excellent mechanical performance, with high strength and toughness. After quenching and tempering (Q+T), it exhibits fatigue resistance, impact resistance, and excellent low-temperature impact toughness.
Downloads
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Bearing condition questionnaire
Bearing Condition Questionnaire
Agency document
Agent Application Form
Product brochure
Slewing & Cross Roller Bearing Catalog
Product brochure
Bearing Unit Catalog
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