SKF Thrust Ball Bearing 51120

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Thrust Ball Bearing 51104

      Thrust ball bearings are designed to withstand thrust loads during high-speed operation, and consist of washer-shaped rings with raceway grooves for ball rolling. Because the ferrule is cushion-shaped, thrust ball bearings are divided into two types: flat base cushion type and self-aligning spherical cushion type. In addition, this kind of bearing can bear axial load, but cannot bear radial load.

      Composition and classification of thrust ball bearings:

      Thrust ball bearings are composed of three parts: seat ring, shaft ring and steel ball cage assembly. The shaft ring matched with the shaft is called the seat ring matched with the shell.

      According to the force situation, it can be divided into one-way thrust ball bearing and two-way thrust ball bearing.

      One-way thrust ball bearings can bear one-way axial load.   

      Two-way thrust ball bearings can bear two-way axial load. Double direction thrust ball bearings in which the shaft ring fits the shaft. The mounting       surface of the seat ring is a spherical bearing, which has self-aligning performance and can reduce the influence of installation errors.

      Thrust ball bearings cannot bear radial loads, and the limit speed is low.

      Thrust ball bearing features:

1. Both unidirectional and bidirectional types are available.

2. In order to allow installation errors, whether it is one-way or two-way, you can choose the spherical self-aligning spherical seat cushion type or the spherical seat ring type.

3. Steel - use ultra-clean steel that can extend bearing life by 80%.

4. Advanced grease technology ― NSK's lubricant technology can extend the life of grease and improve the performance of bearings.

5. High-grade steel balls - quiet and smooth when rotating at high speed.

6. With the ferrule in the option, installation error can be tolerated.

      Thrust ball bearing application:

      It is only suitable for parts that bear axial load on one side and low speed, such as crane hooks, vertical water pumps, vertical centrifuges, jacks, low-speed reducers, etc. The shaft ring, seat ring and rolling elements of the bearing are separated and can be assembled and disassembled separately.

      Thrust ball bearing model parameters:

Bearing Type Domestic New Model Domestic Old Inner Diameter Outer Diameter Width Cr Cor Grease Lubricated Speed Oil Lubricated Speed Weight

                            Model         (mm) (mm) (mm) (kN) (kN) (r/min) (r/min) (kg)

Thrust ball bearing 51101 8101 12      26       9    10.3  15.4 6500 10000  0.022

Thrust ball bearing 51102 8102 15      28       9    10.5  16.8  6100  9400  0.024

Thrust ball bearing 51103 8103 17      30       9    10.8  18.2  6100  9400  0.028

Thrust ball bearing 51104 8104 20      35      10   14.2   24.7  5100  7900  0.040

      Main structural features and related parameters of double direction angular contact thrust ball bearings

      Double direction angular contact thrust ball bearings are used together with double row cylindrical roller bearings to bear bidirectional axial loads. The bearing consists of two shaft rings, a seat ring, a spacer, two rows of rolling elements and a cage. The clearance and preload of the bearing can be adjusted by grinding the thickness of the spacer, and the contact angle of the bearing is 60°. The nominal outer diameter of this kind of bearing is the same as that of the matching double row cylindrical roller bearing with the same aperture, but the outer diameter tolerance zone is below the zero line, and there is a gap between it and the shell, so it does not bear radial load. Designed for thrust bearings.

BEM bidirectional angular contact thrust ball bearings have the advantages of high precision, good rigidity, low temperature rise, high speed, and convenient assembly and disassembly.

      In order to facilitate effective lubrication, a lubricating oil groove is set on the bearing race, and a lubricating hole is opened in the middle.

      The structural forms of 2344 and 2347 series bearings are shown in the figure. The 2344 series bearings should be installed at one end of the cylindrical roller bearing with a smaller diameter (taper hole), and the 2347 series bearings should be installed at the side with a slightly larger diameter taper. Bearing code example: 234420M.SP234720M.SP

'Improve value with service, and strive to become the best service provider in the industry of SKF Thrust Ball Bearing 51120' is our corporate purpose. Welcome new and old customers from all walks of life to visit and guide, and work with us to create a brilliant future. Over the years, our company has been upholding the fundamental of excellent quality, technological progress as the core, green environmental protection as the responsibility, beyond innovation as the goal. We hope to continue to enhance the influence of the brand and continue to improve the competitiveness of the brand.