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Characteristics of needle roller bearings

Needle roller bearings are equipped with thin and long rollers (roller diameter D≤5mm, L/D≥2.5, L is the roller length), so the radial structure is compact, and its inner diameter size and load capacity are the same as other types of bearings. , the smallest outer diameter, especially suitable for support results with limited radial installation size. Depending on the application, a bearing without an inner ring or a needle roller and cage assembly can be selected. At this time, the journal surface and shell hole surface matching the bearing are directly used as the inner and outer rolling surfaces of the bearing to ensure the load capacity and operating performance. As with ring bearings, the hardness, machining accuracy and surface quality of the shaft or housing hole raceway surface should be similar to the raceway of the bearing ring. This kind of bearing can only bear radial load.

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Angular contact ball bearings

Single row angular contact ball bearings: machine tool spindles, high-frequency motors, gas turbines, centrifugal separators, small car front wheels, differential pinion shafts, booster pumps, drilling platforms, food machinery, dividing heads, repair welding machines, Low-noise cooling towers, electromechanical equipment, painting equipment, machine tool trough plates, arc welding machines

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Precautions for using wheel hub bearings

In order to ensure maximum safety and reliability, it is recommended that you check the wheel bearings frequently no matter how old the vehicle is - pay attention to whether there are early warning signs of bearing wear: including any friction noise during rotation or suspension combination wheels turning. Abnormal deceleration.

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Types of deep groove ball bearings

Deep groove ball bearings are mainly used to bear radial loads, but are also commonly used to bear combined radial and axial loads. Especially when the rotation speed of mechanical equipment is very high and it is not suitable to use thrust bearings, this bearing can be used to bear two-way pure axial load and does not require maintenance during operation. It is a low-priced and widely used bearing. The models of deep groove ball bearings include: deep groove ball bearings (60000 type); deep groove ball bearings with stop grooves on the outer ring (60000N type); deep groove ball bearings with a dust cover on one side and a stop groove on the outer ring on the other side. Bearing (60000-ZN type); deep groove ball bearing with dust cover on both sides and stop groove in the outer ring (60000-2ZN type);

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Performance Characteristics and Advantages of Deep Groove Ball Bearings

Deep groove ball bearing is the most representative rolling bearing, which is widely used. It is suitable for operation at high speed or even extremely high speed, and it is very durable without regular maintenance. This type of bearing has small friction coefficient, high limit speed, simple structure, low manufacturing cost and high manufacturing accuracy.

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Purpose and method of bearing lubrication

The lubrication methods of bearings are divided into grease lubrication and oil lubrication. In order to give full play to the function of the bearing, first of all, it is necessary to select the lubrication method suitable for the use conditions and purposes. If only lubrication is considered, the lubricity of oil lubrication is dominant. However, grease lubrication has the advantage of simplifying the structure around the bearing, comparing the advantages and disadvantages of grease lubrication and oil lubrication.

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