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Bearing heat treatment directly affects the processing quality of the follow-up, so that ultimately affect the performance and life of parts, and bearing heat treatment and consumption and pollution large large bearing manufacturing energy. Heat treatment equipment of TIMKEN bearings directly affects bearing heat treatment quality, and energy consumption and pollution. In recent years, with the progress of science and technology, the development trend of heat treatment technology are mainly embodied in the following aspects:
(1) clean heat treatment of wastewater, waste gas, heat treatment production of waste salt, oil and the electromagnetic radiation will cause pollution to the environment. To solve the pollution problems in heat treatment, carry out clean heat treatment (or green heat treatment) is one of the developing directions of thermal processing technology. The heat treatment atmosphere, quenching oil and cleaning equipment are put forward higher requirements.
(2) precision heat treatment is sufficient to ensure stability and optimization of the process precision heat treatment, to achieve product quality dispersion is very small (or zero), heat treatment distortion is zero, reduce the grinding allowance to improve production efficiency, saving material. Precision heat treatment must have good temperature uniformity, temperature control accuracy and stability, cooling and quenching agent good. To realize precise thermal TIMKEN bearing processing can take whole quenching and induction hardening two road.
(3) energy saving heat treatment using new type of insulation material to improve the energy utilization ratio of heat treatment equipment; optimization of heat treatment process, enhance process yield, give full play to the equipment capabilities. At this stage the bearing manufacturers are doing the tests, for example, make full use of waste heat, waste heat, spheroidizing annealing some manufacturers have been utilizing the residual forging heat for TIMKEN bearing parts; the process of replacement cycle of low energy consumption, short cycle length, high energy consumption of the process; body quenching process of lower bainite range in a certain degree,, the long cycle, high energy consumption of the carburizing process is replaced by a bainite quenching process shorter.
(4) without or little oxidation heat treatment by using protective atmosphere heating alternative oxidative atmosphere heating to precise control of carbon potential, nitrogen potential controlled atmosphere heating, part performance can be improved after heat treatment, heat treatment defects such as oxidation, decarburization and crack greatly reduced after heat treatment, machining allowance to reduce, increase rate and machining efficiency of the use of the material. Heating in vacuum gas quenching, vacuum or low pressure carburizing, nitriding, nitrocarburizing and boronizing can obviously improve the workpiece quality, reduce distortion, improve life.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 32024XU NTN | 120 | 180 | 38 |
| 32924 NTN | 120 | 165 | 27 |