Bearings 51138 Thrust Ball Bearing Size 190mmx240mmx37mm Quantity 1PCS Bearing

The thrust ball bearing adopts a design that can withstand thrust loads during high-speed operation, and is composed of a washer shaped ring with a rolling groove for the ball. Due to the cushion shaped ring, thrust ball bearings are divided into two types: flat bottomed cushion type and self-aligning spherical cushion type. In addition, this type of bearing can withstand axial loads, but cannot withstand radial loads The thrust ball bearing consists of three parts: the seat ring, the shaft ring, and the steel ball cage assembly. Weighing ring that matches with the shaft, weighing ring that matches with the housing Divided into unidirectional thrust ball bearings and bidirectional thrust ball bearings according to the force situation. Unidirectional thrust ball bearings can withstand unidirectional axial loads. Bidirectional thrust ball bearings can withstand bidirectional axial loads, where the shaft ring is matched with the shaft. The installation surface of the seat ring is a spherical bearing with self-aligning performance, which can reduce the impact of installation errors. Thrust ball bearings cannot withstand radial loads and have a lower limit speed 1. There are two types available: one-way and two-way In order to allow for installation errors, whether it is unidirectional or bidirectional, spherical seat cushion type or ball seat ring type can be selected. 3. High quality steel - using ultra clean steel that can extend the bearing life by up to 80% Advanced grease technology prolongs the lifespan of lubricating grease and improves the performance of bearings High grade steel ball - quiet and smooth when rotating at high speed By using the collar in the option, installation errors can be allowed There are two key points in the assembly of thrust ball bearings. One is the control of the compression quality between the cage and the steel ball, and the other is the control of the nominal height T after the bearing assembly. In addition, due to the fact that both the shaft ring and the seat ring can be separated, there is a management issue of preventing the mixing of imported bearing parts. The M-type stamping cage uses a bent edge assembly mold. After pressing, the steel ball is required to rotate flexibly in the pocket hole, but cannot fall off from the pocket hole, and the technical regulations check the amount of play of the steel ball in the pocket hole. If the solid holder is pressed too deeply, the amount of movement of the steel ball will be small, and the connection between the pressed protrusion and the holder will be insufficient, resulting in insufficient strength and easy occurrence of falling blocks, causing the holder to be scrapped. The difference in size between the inner diameter of the small thrust ball bearing seat ring and the shaft ring is very small, and there is no significant difference between the two sets. In order to prevent mixed sets, it is found that both sets of bearings are seat rings or shaft rings. This requires certain measures to be taken. Usually, when fitting, auxiliary fixtures are used to distinguish between the pull ring and the seat group, or the inner diameter size is checked with an inner diameter plug gauge before the nominal height is checked. For the convenience of checking the inner diameter, the seat ring is placed below and the shaft ring is placed above. If the inner diameter of the seat ring has obvious quenching and heating oxidation color or has not been ground, there is no need to inspect the inner diameter size. The difference between the shaft ring and the seat ring can be clearly seen, and it is not easy to mix them up. After the assembly of the thrust ball bearing, the nominal height T needs to be measured to confirm whether it is qualified. When measuring, calibrate with height blocks or standard parts and measure the load. The bearing needs to rotate dozens of times and must reach the minimum height When the thrust ball bearing operates at high speed, the contact angle between the steel ball and the radial plane of the raceway will be affected by centrifugal force, causing the steel ball to slide relative to the raceway. The adhesive wear caused by this sliding will damage the bearings. To prevent such damage, it is necessary to ensure the minimum load that the thrust ball shaft can withstand

• Product Material:gcr15 or 52100
• The purpose of thrust ball bearings is only applicable to components that can withstand axial loads on one side and have low rotational speeds, such as crane hooks, vertical water pumps, vertical centrifuges, jacks, low-speed reducers, etc. The shaft ring, seat ring, and rolling element of the bearing are separate and can be installed and removed separately
• A thrust bearing is a specialized bearing designed to withstand axial forces, which are forces in the direction parallel to the shaft Thrust bearings, also known as thrust bearings
• Bearing type: thrust ball bearing Model: 51138 Inner diameter (mm): 190 Outer diameter (mm): 240 Width (mm): 37 Lubricating speed (r/min): 970 Cor(kN)：657 Cr(kN)：170 Oil lubrication speed (r/min): 1500 Weight (KG): 3.95
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