SD.816.20.00.B
- Brand
- QIBR
- Alternative brand
- ATB
- Rolling element type
- Ball
- Measurement system
- Metric
- Weight
- 52 kg
- Outer diameter
- 816 mm
- Inner diameter
- 672 mm
- Total width
- 56 mm
- External hole circle diameter
- 790 mm
- Internal hole circle diameter
- 698 mm
- Raceway diameter
- 744 mm
- Number of holes
- 40
- Bolt hole diameter
- 14 mm
- Outer diameter of inner ring
- 742.5 mm
- Inner diameter of outer ring
- 745.5 mm
- Width of outer ring
- 44.5 mm
- Width of inner ring
- 44.5 mm
- Gear type
- No gear
- Temperature
- -20 ℃ to +100 ℃
- Bearing type
- Four point contact ball slewing ring bearing
- Ring material
- 42CrMo or 50Mn
- Sealing material
- NBR
- Seal type
- Closed type
- Ball material
- AISI 52100
Tell us your operating requirements and required quantity.
Description
Medium size single row four-point contact ball slewing bearings are indeed capable of operating at circumferential speeds up to 4 m/s. These types of bearings are designed to support axial, radial, and moment loads simultaneously while allowing rotational movement. The maximum operating speed depends on various factors including bearing size, design, lubrication, and application conditions. For medium size single row four-point contact ball slewing bearings, 4 m/s is within the typical operational range. It's important to ensure proper lubrication and maintenance to achieve optimal performance and longevity at these speeds. Additionally, specific application requirements and environmental conditions should always be considered when selecting and operating slewing bearings to ensure safe and efficient performance.
QIBR - SD.816.20.00.B Slewing Bearing Advantages and Applications
SD.816.20.00.B Slewing Bearing, with strong static load capacity and low friction coefficient, Inner diameter is 672 mm,Outer diameter is 816 mm,Weight is 52 kg, suitable for astronomical observation instruments, wire cutting machines, overweight transport machinery and high-precision machine tools, etc., and is the most widely used bearing in working conditions that need to withstand heavy loads.
QIBR - SD.816.20.00.B Slewing Bearing Characteristics
SD.816.20.00.B Slewing Bearing, easy maintenance, low cost, easy installation. SD.816.20.00.B Slewing Bearing, can bear radial load, axial load and overturning moment at the same time, suitable for mechanical equipment with high load-bearing capacity requirements.
SD.816.20.00.B 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 - SD.816.20.00.B 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 - SD.816.20.00.B 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
Medium size single row four-point contact ball slewing bearings can be operated at cir-cumferential speeds up to 4 m/s
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
Showing 4 of 7
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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