VSI 20 0844 N

VSI 20 0844 N · Product image

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VSI 20 0844 N · Technical drawing

Brand
QIBR
Alternative brand
INA
Rolling element type
Ball
Measurement system
Metric
Weight
69 kg
Outer diameter
916 mm
Inner diameter
736 mm
Total width
56 mm
External hole circle diameter
890 mm
Internal hole circle diameter
805 mm
Step diameter outer ring
914 mm
Number of mounting holes of the inner ring
40
Number of mounting holes of the outer ring
40
Hole diameter at outer ring
14 mm
Hole diameter at inner ring
M12 mm
Outer diameter of inner ring
842.5 mm
Inner diameter of outer ring
845.5 mm
Width of outer ring
44.5 mm
Width of inner ring
44.5 mm
Gear type
Internal gear
Module
8 mm
Number of teeth
94
Gear P.C.D
752 mm
Max. radial load (fixing screws)
165.2 kN
Normal permissible tooth forces
31.4 kN
Max. permissible tooth forces
46.7 kN
Basic static load rating (axial)
1150 kN
Basic dynamic load rating (axial)
222 kN
Basic static load rating (radial)
510 kN
Basic dynamic load rating (radial)
145 kN
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

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Description

The bearing belongs to the standard series 20 and features internal gear teeth, selectable internal clearance, is sealed, and includes a lubrication nipple located on the circumference of the ring without teeth. This configuration is designed for applications where precise positioning and smooth operation are crucial, such as in construction machinery and other industrial equipment. The internal gear teeth allow for efficient torque transmission and precise movement control within the machinery. The selectable internal clearance provides flexibility to adjust the bearing's performance characteristics based on specific operational requirements, ensuring optimal functionality and longevity. With effective sealing, the bearing protects against dust, dirt, and moisture ingress, maintaining reliability even in harsh environments. The lubrication nipple positioned on the ring without teeth facilitates easy maintenance, enabling timely lubrication to enhance performance and extend service life.

QIBR - VSI 20 0844 N Slewing Bearing Advantages and Applications

VSI 20 0844 N Slewing Bearing has strong load capacity and high precision.Inner diameter is 736 mm，Outer diameter is 916 mm，Weight is 69 kg. It is suitable for high-speed railways, aircraft, offshore drilling platforms, rotary tables, stackers and reclaimers, etc. It is the most widely used bearing in working conditions requiring high precision.

QIBR - VSI 20 0844 N Slewing Bearing Characteristics

VSI 20 0844 N Slewing Bearing, simple maintenance, low maintenance cost, easy installation. VSI 20 0844 N 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.

VSI 20 0844 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 - VSI 20 0844 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 - VSI 20 0844 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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