111.28.1120

111.28.1120 · Product image

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111.28.1120 · Technical drawing

Brand
QIBR
Rolling element type
Roller
Measurement system
Metric
Outer diameter
1242 mm
Inner diameter
998 mm
Total width
82 mm
External hole circle diameter
1198 mm
Internal hole circle diameter
1042 mm
Number of holes
36
Diameter of through holes
22 mm
Bolt size
M20 mm
Depth
40 mm
Number of grease holes
6
Outer diameter of inner ring
1118 mm
Inner diameter of outer ring
1122 mm
Width of outer ring
72 mm
Distance at top outer ring/inner ring
10 mm
Tooth width
65 mm
Module
10 mm
Number of teeth
127
Tip diameter
1298 mm
Gear type
External gear
Temperature
-30 ℃ to +80 ℃
Seal type
Closed type
Bearing type
Cross roller slewing ring bearing
Ring material
42CrMo or 50Mn
Sealing material
NBR

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Description

The externally toothed single-row crossed roller slewing bearing is designed with a 1:1 cross arrangement of rollers and requires high installation accuracy. This configuration ensures precise rotational control and efficient power transmission, making it suitable for applications where accuracy and reliability are paramount, such as in robotics, semiconductor manufacturing, and precision machinery. The external teeth allow for seamless integration with gear systems, enabling precise positioning and smooth operation under heavy loads and varying conditions. This bearing type combines robust construction with precise engineering to meet the stringent demands of industrial operations requiring high installation accuracy and dependable performance.

QIBR - 111.28.1120 Slewing Bearing Advantages and Applications

111.28.1120 Slewing Bearing, small friction coefficient, high precision, good transmission performance, Inner diameter is 998 mm, Outer diameter is 1242 mm, Total width is 82 mm, suitable for cranes, hoists, radar systems and steel furnaces, etc., is the most widely used bearing under working conditions that require high bearing transmission performance.

QIBR - 111.28.1120 Slewing Bearing Characteristics

111.28.1120 Slewing Bearing, high working efficiency, simple maintenance, easy installation, strong durability. 111.28.1120 Slewing Bearing, can bear certain axial force, radial force and overturning moment at the same time, suitable for precision machinery.

111.28.1120 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 - 111.28.1120 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 - 111.28.1120 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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