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1, selection and control of shaft and housing tolerances: TIMKEN bearing pressed into the bearing back rotational flexibility of a block. If there is clearly turning the inflexible, it indicates that the axis dimensions are too large, tolerance to go down. If bearings are pressed into the shaft turn by hand after apparent "Salsa", the tolerances of the shaft may be too large or the roundness of the axis bad. So when the control shaft and housing tolerances to control the roundness, many domestic manufacturers currently control the tolerance, not to control the roundness.
2, TIMKEN bearing Assembly: bearing is a high precision products, such as improper Assembly can easily cause damage to the bearing Raceway, cause damage to the bearings. TIMKEN bearing Assembly should have a special mold, able to beat, only small forces when pressed into the shaft, pressure ring only ring stress. Assembly requires a pneumatic or hydraulic, pressure up or down mode to external to the level, such as tilt will cause damage to the bearing Raceway due to stress and the bearing rings.
3, assemble foreign object prevention: TIMKEN bearing when mounted to the rotor dynamic balance quite easy to balance produced when iron filings into the TIMKEN bearing and is therefore best done before the load bearing dynamic balancing. Some manufacturers for ease of Assembly, Assembly in the bearing Chamber coated with oil or grease lubrication, but often operations staff is difficult to control, if oil or grease in the bearing Chamber accumulates more in the bearing rotates easily along the shaft into the bearing. Preferably do not oil or grease the bearing room, if not not to control shall not be over bearing Interior accumulates.
4 Prevention of rust, paint: paint the rust is characterized by multiple sealed-type motor, motor Assembly, sounds very good, but after some time in the warehouse, the electrical noise gets so large, remove the bearing with serious rust. Many manufacturers are considered to be before bearing problems, through our advocacy, electrical machinery plant has been realized mainly insulating paint problem right now. The problem mainly because of the acidity of insulating varnishes containing volatile substances formed under certain temperature, humidity, corrosive substances, corrosion and cause damage to the bearings bearing Raceway. The problem can only be chosen well varnished, and after drying after a period of ventilation Assembly.
TIMKEN bearing life is closely related to the manufacture, Assembly, use, and must in every aspect well, will put the bearings in the best running condition, thus prolonging the service life of the bearing.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 32310U NTN | 50 | 110 | 40 |
| 4T-30310D NTN | 50 | 110 | 27 |