please contact sales@tanchin.hk for any inquiry
Roller accessories Oil-free bearings in the installation and removal process should pay attention to the inner ring and bearing structure, because the rings are hardened thin-walled parts, hammer easy to produce surface cracks, so the installation should pay special attention to,
Usually inside and outside the circle is inseparable to the heart of the oil-free bearings, the inner ring and the shaft often used with the tight match; outer ring and the seat is used with loose loose. At this point the pressure can be used to roller roller bearing oil-free bearing on the shaft, and then oil-free bearings together with the shaft into the oil-free bearing hole. The sleeves used in the press fit are made of soft metal, such as copper or mild steel. The sleeve diameter is slightly larger than the shaft diameter, the outer diameter is slightly smaller than the oil-free bearing inner rim. When an oil-free bearing is to be fitted to both the shaft and the seat hole, a pressure plate is provided between the sleeve and the oil-free bearing end face. Its aperture slightly larger than the shaft diameter, diameter slightly smaller than the oil-free bearing diameter. Its role is to prevent the oil-free bearing outer ring in the seat hole flex or stuck. The pressure applied to the sleeve can be mechanical or hydraulic. But absolutely can not directly hammer the collar face. Because the ring is hardened thin-walled parts, hammer easy to produce surface cracks.
2. Heating installation
The force required to install the rim is related to the size of the oil-free bearing and the size of the interference. For the larger amount of interference, large oil-free bearings, often used to install the heating method. Hot oil before the oil-free bearings into the tank evenly heated to 80 ℃ ~ 100 ℃, and then removed from the oil installed on the shaft. When the heating roller roller accessories oil-free bearings should not be placed in the bottom of the box to prevent precipitation impurities into the oil-free bearings. And should strictly control the oil temperature shall not exceed 100 ℃. According to the size of oil-free bearings can also be used other heating methods, such as induction heaters, electric panels and electric furnace.
3. disassemble
Disassemble the inner ring and the shaft in close cooperation with the outer ring and the seat hole is loose with the oil-free bearings, the first axis with the roller accessories oil-free bearings from the oil-free bearing hole removed, and then the oil-free bearings Remove from the shaft. Remove the inner and outer rings can be divided into oil-free bearings, the first axis with the inner ring removed, and then remove the inner ring from the shaft; outer ring from the oil-free bearing hole hole. Oil-free bearings are removed from the shaft or oil-free bearings are removed from the shaft by the available presses. Screw mechanism can also be used. When the outer ring in the hole with the tight, the pressure can be used to press out the outer ring.


please contact sales@tanchin.hk for any inquiry
PREVIOUS:Bearing side cover packing Improvement        

F682X F692X F602 F694Z F695Z F696Z F697Z F698Z F699Z F604Z F605Z F606Z F607Z F608Z F624Z 6032DU 6030V 625VV 6032DDU 626DD