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Bearing support of the additional sealing means may be effective to the normal working of the bearing in good condition without external dirt invasion, but such additional sealing means may increase the axial dimension of the mechanical, the use and installation of the bearing inconvenience , additional sealing sealing performance of the device is often subject to the journal and the housing to match parts machining accuracy and geometric tolerance, and do this in a compact, sealed demanding parts.
The commonly used method of heating:
Electric hot plate heating bearings placed in a few minutes on a hot plate temperature of 100 ° C, and this method is the most simple, such as flip several times allows the bearing uniform heating efficiency can use the same method, the size of the bearing.
Electric furnace heating bearings will be placed in the the closed automatic temperature electric furnace heating heating uniformity, accurate temperature control, fast heating, suitable for a number of heating a lot of bearing occasions.
Induction heating method using an induction heater can be quickly and reliably clean the bearing is heated to the desired temperature, which is particularly suitable for the inner ring for fit occasions, due to be heated only the inner ring and the outer ring heat rarely, so can be more easily mounted on the shaft, and can easily be stored in the seat hole.
Electric lamp heating method using 50W bulbs heating bearings, can ensure that the heating temperature of about 100 ℃, smaller bearings may be placed directly on the bulb, the larger bearing can be placed within the conical cap of the lamp, the tapered cover can prevent the lamp heat loss , and uniform heating conical hood can be adjusted under the bit, within a certain range of different sizes of bearings, if a far infrared lamp, that the lamp direction should face down, so that the infrared rays are not conducive to the human eyes that the bulbs can be able to adapt to the heating energy-saving light bulb heating method applies to a small number but not often need; bearing heated occasions, usually bulbs can also be used as lighting, in addition, does not require any other equipment.
Oil bath heating method which is the wider application of traditional heating methods, and fuel tank from the bottom at 50 ~ 70mm set metal mesh the bearings placed online, large bearings use hook lift bearing should not be placed directly on the bottom, to prevent contact with the bottom of the bearing parts of the local heat is too high, or the bottom of the groove precipitation dirt into the bearing oil bath heating method points to note are as follows, should use non-corrosive good thermal stability of mineral oil, the best transformer oil, oil and container should be kept clean sump capacity should be the size of the bearing is heated, and fuel may be, if the container is too small, in continuous operation, one into the bearing oil temperature will soon drop, the effect on the poor.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7934CTYNDBLP4 NSK | 170 | 230 | 28 |
| 7932A5TYNDBLP4 NSK | 160 | 220 | 28 |