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Tapered bore self-aligning ball bearings

Description
Tapered bore self-aligning ball bearing is a rolling bearing with a tapered hole in the inner ring and a spherical raceway in the outer ring. It can automatically compensate for the angular deviation between the shaft and the bearing seat to ensure smooth operation.

Application

Industrial machinery: textile machinery, papermaking equipment

Agricultural machinery: combine harvester

Conveyor system: belt conveyor, roller conveyor

Engineering machinery: mixer, lifting equipment

Heavy equipment: wind power, mining machinery

Advantages
✔ Automatic self-aligning, adapting to installation errors
✔ High radial load capacity
✔ Easy installation and maintenance
✔ Low friction, energy saving and high efficiency

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Overview of tapered bore self-aligning ball bearings

Tapered bore self-aligning ball bearings are a unique rolling bearing with a tapered bore design on the inner ring and a spherical profile on the outer ring raceway. This construction enables it to have an automatic correction function, which can effectively offset the centering deviation between the shaft and the bearing seat. The tapered bore structure is usually adapted to tapered shaft necks, and can also be matched with a clamping sleeve on the smooth shaft.

Common Models and Parameters of Tapered Bore Self-Aligning Ball   Bearings
Below is a reference table for common tapered bore self-aligning ball bearing models along with their key specifications. The parameters include bearing model, inner diameter, outer diameter, width, dynamic load, static load, and weight.
Model Inner   Diameter (d) Outer   Diameter (D) Width   (B) Dynamic   Load (Cr) Static   Load (Cor) Weight   (kg) Matching   Adapter Sleeve
1211K 55   mm 100   mm 21   mm 33.5   kN 12.2   kN 0.68 H211
1312K 60   mm 130   mm 31   mm 61.0   kN 26.5   kN 1.65 H312
2213K 65   mm 120   mm 31   mm 59.0   kN 23.5   kN 1.25 H313
2220K 100   mm 180   mm 46   mm 143.0   kN 86.0   kN 5.8 H320
2322K 110   mm 240   mm 80   mm 290.0   kN 197.0   kN 14.3 H322
1215K 75   mm 130   mm 25   mm 49.5   kN 17.8   kN 1.2 H215
2316K 80   mm 170   mm 58   mm 125.0   kN 79.0   kN 5.2 H316
Parameter Description
Model: Specific model designation of the bearing.

Inner Diameter (d): The diameter of the inner bore, matching the diameter of the shaft.

Outer Diameter (D): The diameter of the bearing's outer ring.

Width (B): The total thickness of the bearing.

Dynamic Load (Cr): Maximum load the bearing can withstand under dynamic conditions, measured in kilonewtons (kN).

Static Load (Cor): Maximum load the bearing can withstand under static conditions, measured in kilonewtons (kN).

Weight: The weight of the bearing, measured in kilograms (kg).

Matching Adapter Sleeve: The adapter sleeve model is used to mount the bearing on a plain shaft.

 

Core advantages

Automatic centering function It can adapt to installation deviations or axis center offsets during operation.

Strong load-bearing performance It has excellent radial load bearing capacity while adapting to medium axial forces.

Easy assembly The tapered bore design simplifies the installation, disassembly and clearance adjustment process.

Efficient operation Low friction loss ensures smooth operation and reduces energy consumption.

Common brands

SKF Tapered bore self-aligning ball bearings
NSK Tapered bore self-aligning ball bearings
KOYO Tapered bore self-aligning ball bearings
FAG Tapered bore self-aligning ball bearings
NACHI Tapered bore self-aligning ball bearings
NTN Tapered bore self-aligning ball bearings
INA Tapered bore self-aligning ball bearings
TIMKEN Tapered bore self-aligning ball bearings

Typical application areas

This bearing is suitable for equipment that requires efficient rotation and angle adjustment, mainly covering the following scenarios

Industrial field

Textile equipment such as spinning machines, sewing devices and other continuous operation machinery.

Papermaking equipment suitable for high humidity and high load conditions.

Tapered bore self-aligning ball bearings for Roller for paper machines

Agricultural field

Combine harvesters and other agricultural machinery that need to adapt to complex terrain.

Logistics conveying system

Beltroller conveyors and other devices that are susceptible to vibration and shock.

Tapered bore self-aligning ball bearings for Roller conveyor equipment

Engineering machinery

Concrete mixers, lifting equipment, etc.

Tapered bore self-aligning ball bearings for Roller for Construction Equipment Mixers~1

Other heavy equipment

Wind power equipment, mining machinery and other occasions that require high durability and self-aligning performance.

FAQ

1. What kind of shaft is the tapered bore bearing suitable for
It can directly match the tapered shaft, or be installed on the smooth shaft through a tight sleeve, and has a wide range of applicability.

2. What is the difference between tapered bore and cylindrical bore bearings
The tapered bore type is easy to install and axial fine-tune, and the cylindrical bore type is cheaper and suitable for standardized needs.

3. What are the criteria for bearing replacement
Replacement is required when abnormal noise, surface damage (crackspeeling), abnormal temperature rise or lubrication failure occurs.

4. Installation precautions

Use professional tools (such as heaters) to avoid damage.

Ensure that the dimensional tolerances of the shaft and the bearing seat match.

5. Typical failures and preventive measures
Overheating, poor lubrication or improper assembly are the main causes, and regular maintenance, standardized installation and real-time monitoring of operating status are required.

Conclusion

Tapered bore self-aligning ball bearings are ideal for industrial, agricultural and construction equipment due to their adaptive self-aligning characteristics and convenient installation. Proper installation and regular maintenance can significantly increase their service life and ensure stable operation of the equipment.

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