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(1) how to deal with NSK Bearings temperature effects
(1) The alarm bells will ring.
(2) the machine next to the plate water wheel mechanical failure light plate light, instrument temperature indicates that the bearing temperature, the signal relay.
(3). The thermometer disk (intumescent thermometer) black needle and yellow needle coincidence or exceed the yellow needle.
(4). Issued bearing temperature fault signal.
(2) bearing phenomenon causes:
(1) may interrupt bearing cooling water, resulting in the phenomenon.
(2). May NSK Bearings of oil deterioration, oil dirty or run Chinese Petroleum degradation. Increases, such as the increase in oil in the water will cause the acidity of the oil will reduce the lubrication of oil, so that the bush was corrosion, thereby causing the bearing temperature rise of the phenomenon.
Bearings appear to approach the phenomenon.
NSK bearing temperature rises, first of all have to determine whether there is an error action, if the temperature does rise, you should immediately do the following processing:
(1) Check the cooling water pressure, flow, and piping systems are normal. Flow depress the filter blockage, can not handle, you can stop processing when the confirmation can work, and then put into use.
(2) should check the oil pressure of the governor, if the low oil pressure may cause the cooling water hydraulic valve is closed.
(3) Check the bearing different tone, and detect whether there are abnormal NSK Bearings swing.
(4). Take oil samples to observe the oil color change, and conduct tests to see whether the deterioration. Confirm deterioration should be down to be replaced with new oil.
(5) Check the oil standard oil level is normal, abnormal, check the tank for oil discharge valve is closed. If you have closed, you should fill the oil seal in oil leakage, should stop treatment.
Prevent assembly of foreign bodies: NSK Bearings mounted to the rotor on balancing balancing when iron filings into the bearings inside, so it is best to do balancing mounted bearings. Some manufacturers in order to facilitate assembly, the assembly in the bearing indoor coated with oil or grease lubrication effect, but often the operator is difficult to control, if the oil or grease in the bearing chamber accumulates more in the bearing rotation easily along the shaft into the bearing. Bearing chamber is preferably not coated with oil or grease, such as non-coated not will have to control not in bearing indoor accumulates.
Paint rust prevention: paint rust is characterized by multiple sealed motor, the motor assembly sound good, but put some time in the warehouse after the motor abnormal noise becomes large, remove the NSK Bearings serious The rusting phenomenon. The past, many manufacturers would be seen as bearing, motor factory has realized that through our continuous publicity, varnish. The main problem is because the insulating paint out of the volatile acid formation of corrosive substances in a certain temperature, humidity, corrosion of the bearing channel lead to bearing damage. The problem can only be selected good insulating paint, and assembly ventilation for some time after drying.
Bearing assembly: because the bearings are precision products, such as the improper assembly bearing channel it is easy to damage, leading to bearing damage. NSK Bearings in the assembly should have a special mold, can not be beat, can only be pressed into the shaft, a small circle, force, pressure of the great circle only great circle force. Require the use of pneumatic or hydraulic assembly, press-fit upper and lower mold outside the state level, if inclined to cause damage to the bearing channel due to the force, leaving the bearings to produce the guide ring.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 6340 NSK | 200 | 420 | 80 |
| 6240 NSK | 200 | 360 | 58 |