- Hello Customer - Log in or Register!
Because the bearings are high-precision products, such as improper Assembly can easily cause damage to the bearing Raceway, cause damage to the bearings. During Assembly of the bearing should be dedicated 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.
NSK bearings are mounted to the rotor dynamic balance easily will enter the bearing dynamic balancing produced when iron filings, 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, if not not to control shall not be over bearing Interior accumulates.
Rust is characterized by many paint on the 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 bearing Raceway. The problem can only be chosen well varnished, and after drying after a period of ventilation Assembly.
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.
Precision parts for rolling bearings, thus the request accordingly cautious when using, using high-performance bearings, if used improperly, failing to reach the expected performance results, so bearings should be aware of the following considerations:
1. keep the bearing and its surroundings clean. Even invisible smile dust into the bearings, also increases bearing wear, vibration and noise.
2. installation should carefully, do not allow powerful punching, tapping bearing with a hammer directly is not allowed, passed through the rolling pressure is not allowed.
3. using the installation tool for the appropriate, accurate, using special tools as much as possible, avoid using things like fabric and fiber.
4. Prevention of corrosion of the bearing, by hand when taking bearings directly, to fully wash away sweat on his hand, and coated with high quality mineral oil before operation, paying particular attention to rust in the rainy season and summer.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| NNU4930 NTN | 150 | 210 | 60 |
| NNU4928K NTN | 140 | 190 | 50 |