ISO 15540:1999 - Fire resistance of hose assemblies - 15540
Coefficient of thermal expansion
Al2O3
The hub bearing unit is developed on the basis of standard angular contact ball bearings and tapered roller bearings. It integrates two sets of bearings and has good assembly performance, can eliminate clearance adjustment, light weight, compact structure and load capacity. Large, sealed bearings can be pre-loaded with grease, omitting external hub seals and maintenance-free. They have been widely used in cars, and there is a tendency to gradually expand applications in trucks.
Al2O3cte
The main function of the hub bearing is to load and provide precise guidance for the rotation of the hub. It is both an axial load and a radial load and is a very important component. The traditional automotive wheel bearings are composed of two sets of tapered roller bearings or ball bearings. The installation, oiling, sealing and clearance adjustment of the bearings are carried out on the automobile production line. This structure makes it difficult to assemble in a car production plant, high in cost, and poor in reliability, and the car needs to be cleaned, oiled, and adjusted at the time of maintenance at the maintenance point.
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The largest number of wheel bearings for cars used in the past was the use of single row tapered roller or ball bearings in pairs. With the development of technology, car hub units have been widely used in cars. The range and use of hub bearing units is growing, and today it has reached the third generation: the first generation consists of double row angular contact bearings. The second generation has a flange for fixing the bearing on the outer raceway, which can be simply fixed to the axle by a nut. Make the maintenance of the car easier. The third-generation hub bearing unit is equipped with a bearing unit and an anti-lock brake system ABS. The hub unit is designed with an inner flange and an outer flange, the inner flange is bolted to the drive shaft, and the outer flange mounts the entire bearing together.
Bearing Detail Item No. 42KWD11 Wheel hub bearing Wheel hub bearing Seals Type: DU ZZ 2RS Material Chrome steel GCr15 Precision P0,P2,P5,P6,P4 Clearance C0,C2,C3,C4,C5 Cage type Steel cage Ball Bearings Feature Long-life with high quality Low-noise with strict controlling the quality of HJR bearing High-load by the advanced high-technical design Competitive price, which has the most valuable OEM service offered, to meet the customers requirements Application mill rolling mill rolls, crusher, vibrating screen, printing machinery, woodworking machinery, all kinds of industry Bearing Package Pallet,wooden case,commercial packaging or as customersâ requirement Â