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TIMKEN bearing with fine and long of roll child (roll child length for diameter of 3~10 times, diameter General is unlikely to Yu 5mm), therefore radial structure compact, its diameter size and load capacity and other type bearing phase while, od minimum, special applies Yu radial installed size by limit of supports results. needle roller bearings according to using occasions different, can selection no within ring of bearing or roll needle and maintained frame component, at this point and bearing match of axis neck surface and shell hole surface directly as TIMKEN bearing of within, and Outside rolling surface, in order to guarantee performance and load carrying capacity and operation ring bearing the same, hardness of the shaft Raceway surface or shell holes, machining precision and surface quality with the bearing rings. Utilize a solid state diffusion infiltration of elements to change the chemical composition of the metal surface layer, TIMKEN bearing chemical heat treatment of surface strengthening method is called in order to achieve enhanced, also known as diffusion heat treatment. Including boronizing, alloying, carburizing and carbonitriding, and nitriding and nitrocarburizing, sulfurizing and sulfur nitrocarburizing, chromizing, aluminized and chrome aluminum Silicon infiltration, infiltration layer of graphite, and so on, variety and features vary. Infiltration of elements or metal into the substrate to form solid solutions, or combined with other metals to form compounds. In short the infiltration of elements is able to change the chemical composition of the surface layer, and phase structures are different. Carburizing process of bearing steel parts surface nitriding treatment and needle roller bearings are strengthening methods in this category. Self-aligning ball bearings are suitable for bearing subjected to heavy and shock loads, precision instrument, low noise electric motor, automobile, motorcycle, metallurgy, rolling mill, mining, petroleum, pulp and paper, cement, sugar industry and General machinery, etc.
Two inner ring raceways and rolling road between the spherical outer ring, fitted with drum shaped roller bearings. Outer ring raceway surface curvature Center consistent with the bearing, so it has with self-aligning ball bearings the same spherical function. Crust occurs when flexing the axis, you can automatically adjust, without increasing the bearing the burden. Spherical roller bearings can accommodate radial loads and two-direction axial loads. Large self-aligning ball bearings radial load capacity, suitable for heavy loads, shock loads. Diameter of the inner ring is tapered hole TIMKEN bearings, can be directly installed. Or using an adapter sleeve, demolished Launcher installed on a cylindrical shaft. Cage using a pressed window-type steel cages, polyamide take shape.
Sound of impact rolling and its control method, and larger models of ball bearings or cylindrical roller bearing under purely radial load and low speed operation, due to the centrifugal force of the rolling small impact load-free area in the rolling will roll cage or road noise. But as the speed increases, this noise will disappear. On the rolling control method for impact sound: appropriate reduction of radial clearance, reasonable structure and materials: soft cage of TIMKEN bearings.
TIMKEN bearing characteristics of these methods are: strengthening layer of dislocation density increases, and crystal structure refinement, so that its hardness and strength, surface roughness values decrease, can significantly improve fatigue strength and surface of the part of reducing the fatigue notch sensitivity. This enhanced method of process is simple, effective, hardened layer and there are no clear boundaries between the substrate and structure a coherent, easy in use fell off. Most of its methods were applied at the TIMKEN bearing industry has been: the rolling surface strengthened is the impact of application of such methods, precision rolling bearing ring machining has become the new and enhanced approach. Repair method on bearing wear.
After traditional methods generally use surfacing machine for repair and surfacing will enable part surfaces to reach very high temperatures, resulting in part deformation or cracks, obtained by machining dimensions causing downtime is greatly extended. On-site repair and polymer composites, no thermal effects, fixing thickness does not limit, product wear resistance and the material did not have backed down, and ensure that full contact repair parts meet, reducing shock and vibration of the device, avoid the possibility of wear.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| NJ2211ET NSK | 55 | 55 | 25 |
| NJ2210ET NSK | 50 | 50 | 23 |