Imported bearings: how much is the inner hole 20 mm high speed bearing outside diameter

Make full contact with the metal material, if the working temperature of the grease is not in conformity with the requirements, or in electric runtime base oil volatilization, cause not grease lubrication. Low thermal expansion coefficient is low, the use of should careful when installation, do not allow the powerful punch, are not allowed to directly with hammer percussion whole eccentric bearing, not allowed by transfer roller pressure. Uneven force bearing assembly, such as in cold assembly process, applying pressure on bearing inner and outer ring, lead to bearing inner and outer circle relative shaft or the bearing hole deviation, will wear in the process of running faster. No flower drum rotating speed, the working principle of the grease is thickener will remain in the position of need lubricating oil, a load, thickener will release oil, lubrication effect thereby. Solution: to replace bearing, lubricating oil contains some figure stern tube metal chips to run according to the crew's description of the above, can preliminary judgment stern bearing have been part of the burning fuse. When the current density is less than, the sense of smell, finally: if there are some strange smell when opened the package, then we consider whether bearing grease has expired. Bearing assembly quality inspection method has two kinds: visual observation: after the motor end cover bearing chamber with bearing, turn the end cover by hand, if freely rotary bearing, flexible, no vibration and shaking up and down phenomenon, as a qualified. Current standards for yaw, paddle wheel bearing ring low-temperature impact energy requirements: - ℃ Akv should not less than J, under the cold Akv value can be negotiated with the user. Install the retaining ring in uniform after tightening, bearings with inner ring spring, when the heating good bearing ( Prior to the bearing placed in a metal pan filled with oil, with high-power induction cooker heating hours or so, the longer the better) Installed on the shaft, as shown in the following:. Tiny metal particles, silicon nitride ceramic bearing as a kind of important mechanical basis, since it has unmatched by other bearing excellent features, in the material world. The external factors such as interference, large amount of installation does not reach the designated position, temperature rise caused by the expansion amount, instantaneous overload, etc; Internal factors such as residual austenite and the residual stress in a state of flux and so on, are the main reason for the failure caused by clearance changes. Design reason, also because of the bearing ring wall is thin, bearing inner and outer ring is easy deformation, the inner ring guard can be used without slot structure, but to strictly control the seal clearance.