SF-2 boundary lubricated TIMKEN bearing plus: Acid polymer must be used in the assembly process with formaldehyde, which has high wear resistance. Storage pits on the surface of TIMKEN bearings are regularly arranged and full of grease. Especially for high load and low speed rotary movement and swing movement, a negative, not easy to form fluid lubrication opening and closing site is often set up. In the refueling process, the life of TIMKEN bearing can be extended much. At present, it can be used in metallurgical machinery, mining machinery, hydraulic machinery, automobile parts, construction machinery, agricultural machinery.
Oil-free Self-lubricating TIMKEN Bearings: This product is a mixture of steel plate as base plate, intermediate layer sintered spherical bronze powder, and surface rolled polytetrafluoroethylene [PTFE] and lead. It has small friction coefficient, wear resistance, corrosion resistance. Oil-free self-lubricating features, long life, use it to reduce costs, reduce noise, prevent sticky, slippery. It is widely used in various machines, such as sliding parts of printing presses, textile machinery, hydraulic haulers, tobacco machinery, pharmaceutical machinery, medical, micromotors, automobiles, motorcycles and so on.
Metal-based solid self-lubricating TIMKEN bearings inlaid with a metal TIMKEN bearing feature and function The new self-lubricating TIMKEN bearing lubricates the TIMKEN bearing by a metal matrix, a specially formulated solid lubricant for the lubricant load. It has the characteristics of high bearing capacity, impact resistance, high temperature resistance, strong self lubrication ability and so on.
Traditional oil-bearing TIMKEN bearings: low noisy sound, self-lubricating advantages, oil has become a computer CPU fan TIMKEN bearings, the new darling of the market demand; In addition, as people become more and more Cao Yin, the application of oil-containing household appliances is constantly expanding.
The basic requirements for working on TIMKEN bearings depend to a large extent on the performance of TIMKEN bearings. The choice of whether to create a suitable TIMKEN bearing material will have a significant impact on its performance and life. Under normal circumstances, TIMKEN bearing spalling fatigue under alternating stress is the main form of failure, as well as precision TIMKEN bearing wear due to friction loss. In addition, there are cracks, dents, rust and other irregular TIMKEN bearing damage causes. Therefore, TIMKEN bearings should have a high resistance to plastic deformation, reduce friction and wear, good rotation accuracy, good dimensional accuracy and stability, and long contact fatigue life. The properties of many materials and heat treatment processes are jointly determined.
Fatigue failure is one of the surface failure forms of TIMKEN bearing, which is the failure caused by metal under the long-term action of alternating load, mainly manifested as the initiation, expansion and fracture of fatigue cracks. Cracks can occur in two ways:
Number one: It occurs from the surface, that is, in the contact process of TIMKEN rolling bearing, the contact stress with periodic changes caused by external load on the working surface results in plastic deformation and deformation hardening on the surface, and finally a tiny crack appears on the working surface which develops from the surface to the inside. Between the two surfaces formed by the crack, the crack wall has been opened by force due to the lubricant. Force the crack forward;
Second: the crack is generated from the surface, that is, under the repeated action of the surface contact stress, the crack is initially generated at a certain depth from the contact surface, and along the direction of a certain Angle with the surface, to a certain depth from the surface, and then out to the surface, and finally formed pitting spalling, leaving a pitting pit on the contact surface.
Cracked from the surface or from the surface, these two conditions are objective existence (parts after carburizing, surface quenching and other heat treatment, if there is uneven hardness, uneven organization and adverse internal stress, then under the action of contact stress, cracks are generally generated from the surface. On the contrary, if the part surface processing quality is poor, there are defects (oxidation, decarbonization), friction or poor lubrication, the crack is generated from the surface.