bearing into ball bearings

Bearings are modern machinery and equipment is an important component. Its main function is to support the mechanical rotating body,crossed roller bearing reducing its coefficient of friction during movement, and to ensure the accuracy of its rotation.
According to the different nature of friction of moving parts, bearings Rolling and plain bearings can be divided into two categories. Wherein Rolling been standardized, serialized, but compared with the sliding bearing its radial dimension, vibration and noise is large, the price is higher.
Rolling generally consists of an outer ring, inner ring, rolling elements and cage four parts. According to the shape of the rolling elements, bearing into ball bearings and roller bearings two categories.

Bearing life

Under certain load, the number of revolutions or hours before the experience of bearing pitting in the event, called the bearing life.
Life of rolling bearings of the number of revolutions (or in hours of work under a certain speed) Definition: In this life bearing within, High Speed Backing Bearing initial fatigue damage should occur (spalling or defect) on any of its rings or rolling element bearings. However, both in laboratory tests or in actual use, we can clearly see, the appearance in the same working conditions of the same bearing, the actual life different. There are also several different definitions of bearings "life", one of the so-called "working life", which represents the actual life of a bearing can be achieved before the damage is usually not damaged by the wear caused by fatigue, but It is caused by wear and tear, corrosion, seal damage and other reasons.
To determine the standard bearing life, the bearing life and reliability linked.
Due to manufacturing precision, uniformity of material differences, even if the same material, the same group of the same size bearings, used under the same working conditions, their life is not the same length. In terms of the statistical life of a unit, relative to the longest life is 4 units, the shortest 0.1-0.2 units, the ratio of the longest and the shortest life of 20-40 times. 90% of the bearing does not produce pitting, the number of revolutions or the number of hours after which called bearing rating life.

Needle roller bearings

With thin and long needle bearing roller (roller length of 3 to 10 times the diameter, the diameter of generally not more than 5mm), therefore radial structure is compact, its diameter size and load capacity and other types of bearings, outer The minimum diameter, especially for radial bearing installation dimensions restricted structure of needle roller bearings according to different occasions, can be used without an inner ring of the bearing or needle roller and cage assembly,  paired tapered roller bearing this time bearing mating journal surface and the housing bore directly on the surface as the inner and outer rolling surface of the bearing, in order to ensure load capacity and operating performance and have the same bearing rings, shaft or housing bore raceway surface hardness, machining accuracy and surface quality should be bearing rings. Uses a combination of roll needle bearing is a bearing unit to the heart needle roller bearings and thrust bearing components portfolio, its compact structure, small size, high precision rotation, can withstand high radial load at the same time bear certain axial load. And product mix diversity, adaptability, easy to install. Combined needle roller bearings are widely used in machine tools, metallurgical machinery, textile machinery and printing machinery and other machinery and equipment, and mechanical system design allows highly compact and nimble.

Luoyang bearing should pay attention

1, surface cleaning: cleaning must be in accordance with the nature of the surface rust and the prevailing conditions, the appropriate method is selected. Commonly used solvent cleaning, bearings for sendzimir mills chemical treatment and mechanical cleaning method to clean. 2, Luoyang bearing the surface was cleaned by washing by filtration and dried in the drying compressed air, or a dryer 120 ~ 170 ℃ is dried, dry clean gauze can also be used. Second, anti-rust oil coating method: 1, soak method: Soak in some small items using anti-rust oil, allowed a layer of rust on the surface adhesion method grease. The film thickness can be achieved by controlling the temperature or viscosity rust preventive oil. 2, brush or spray for NA immersion outdoor construction equipment or special shape products, Thin section bearing  should pay attention when brushing does not produce accumulation, but also pay attention coated to prevent leakage. 3, spray some large rust-proof material coated with oil immersion method can not be used, Luoyang bearing usually with about 0.7Mpa pressure spraying compressed air filter in the air cleaner place. Spray application of anti-rust oil or solvent dilution thin rust oil, but it must be used to improve fire safety and labor protection measures.

With sensor wheel hub Tapered roller bearings units

As more and more cars equipped with ABS, ABS function is also growing. To solve the wheel speed sensor wheel speed to provide a signal to the ABS costs exist, installation and signal quality and other aspects of the development of the integrated ABS pulse generator hub bearing unit. Wheel split tapered roller bearing units with ABS sensors, including flanges, ring gear rotating body, Tapered roller bearings the seal assembly and hub with ABS sensors on the wheels, ABS sensor ring magnet rotating body suit on, and with the phase complexes; rotating body and a ring gear fixed to the flange was connected. ABS sensor includes a housing, the magnet and the coil, Slim-bearing the ring magnet fitted over the rotating member, the rotating member fitted with the ring magnet; coil via a signal line and a connector. Rotating body and flange ring was spline connection. End face is provided with a flange with bolt holes directly with suspension, brakes and tires connections. precision bearings in the flange has splines can be used in conjunction with a constant velocity drive shaft. The utility model is beneficial effect: Tapered roller bearings the structure to replace the original car steering knuckle, wheels, bearings portfolio, both the three functions are integrated, but also greatly reduces the size of the original structure, reducing the weight, but also greatly improving the reliability.