2970DBD101t

2970DBD101t · Product image

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2970DBD101t · Technical drawing

Brand
QIBR
Alternative brand
NSK
Rolling element type
Ball
Measurement system
Metric
Weight
2270 kg
Outer diameter
3428 mm
Inner diameter
2970 mm
Total width
189 mm
External hole circle diameter
3360 mm
Internal hole circle diameter
3136 mm
Inner diameter of outer ring
3213 mm
Outer diameter of inner ring
3208 mm
Number of mounting holes of the inner ring
90
Number of mounting holes of the outer ring
90
Hole diameter at inner ring
M30 mm
Depth1
40 mm
Depth2
60 mm
Hole diameter at outer ring
33 mm
Distance at top outer ring/inner ring
47 mm
Width of outer ring
168 mm
Tip diameter
2970 mm
Module
18 mm
Number of teeth
166
Tooth width
142 mm
Gear P.C.D
2988 mm
Gear type
Internal gear
Max. permissible tooth forces
189 kN
Basic static load rating (axial)
20 kN
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

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Description

The single-row ball slewing bearing with different diameters is specifically designed with larger axial and radial dimensions and a compact structure, making it highly suitable for crane equipment applications. This type of bearing is engineered to handle substantial axial and radial loads encountered in crane operations, providing robust support and stability during rotational movements. The use of single rows of balls ensures efficient load distribution and enhances the bearing's capacity to withstand dynamic forces and moments typical in crane operations. Its tight structure minimizes space requirements while maximizing strength and reliability, crucial factors in ensuring safe and efficient crane performance. Therefore, the single-row ball slewing bearing with different diameters stands out as a dependable choice for the demanding requirements of crane equipment.

QIBR - 2970DBD101t Slewing Bearing Advantages and Applications

2970DBD101t Slewing Bearing has small assembly clearance and strong load-bearing capacity. Inner diameter is 2970 mm,Outer diameter is 3428 mm,Total width is 189 mm,Weight is 2270 kg. It is suitable for dredgers, port cranes, reach stackers, and marine cranes, etc. and is the most widely used bearing in working conditions requiring high loads.

QIBR - 2970DBD101t Slewing Bearing Characteristics

2970DBD101t Slewing Bearing, less wear and longer life. 2970DBD101t Slewing Bearing, can bear radial load, axial load and overturning moment at the same time, suitable for mechanical equipment bearing high loads.

2970DBD101t 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 - 2970DBD101t 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 - 2970DBD101t 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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