020.30.900
- Brand
- QIBR
- Rolling element type
- Ball
- Measurement system
- Metric
- Outer diameter
- 1042 mm
- Inner diameter
- 758 mm
- Total width
- 124 mm
- External hole circle diameter
- 998 mm
- Internal hole circle diameter
- 802 mm
- Number of holes
- 30
- Diameter of through holes
- 22 mm
- Bolt size
- M20 mm
- Depth
- 40 mm
- Number of grease holes
- 6
- Distance at top outer ring/inner ring
- 29 mm
- Width of outer ring
- 114 mm
- Gear type
- No gear
- Temperature
- -20 ℃ to +100 ℃
- Bearing type
- Double-row ball slewing bearing with different ball diameters
- Ring material
- 42CrMo or 50Mn
- Sealing material
- NBR
- Seal type
- Closed type
Tell us your operating requirements and required quantity.
Description
The double row ball slewing bearing features two rows of steel balls with different diameters positioned on the top and bottom. This design optimizes load distribution and enhances the bearing's capacity to withstand axial, radial, and moment loads from various directions. The use of two different ball diameters allows for efficient load sharing and improved stability, ensuring smooth and reliable operation in heavy-duty applications such as cranes, excavators, and industrial machinery. This configuration not only enhances the bearing's performance but also contributes to its longevity and durability under challenging operating conditions.
QIBR - 020.30.900 Slewing Bearing Advantages and Applications
020.30.900 Slewing Bearing has high precision and low friction coefficient. Inner diameter is 758 mm,Outer diameter is 1042 mm,Total width is 124 mm. It is suitable for high-speed railways, aircraft, offshore drilling platforms, rotary tables, and industrial robots, etc. and is the most widely used bearing in working conditions with high precision requirements.
QIBR - 020.30.900 Slewing Bearing Characteristics
020.30.900 Slewing Bearing, saves space, evenly distributes load, and has a long service life. 020.30.900 Slewing Bearing, can simultaneously bear radial load, axial load, and overturning moment, and is suitable for mechanical equipment with high precision requirements.
020.30.900 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 - 020.30.900 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 - 020.30.900 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
Double row ball slewing bearing, there are two rows of steel balls with different diameters on the top and bottom.
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
Showing 4 of 7
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