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Slewing Bearing Installation And Maintenance Points
Sep 27, 2017

Rotary bearing is a kind of large bearing which can bear the special load such as large axial load, radial load and overturning moment, such as integrated load, set support, rotation, transmission, fixed and so on. Therefore, in the installation of turntable bearings must do a good job of the relevant inspection work, or installation need to pay attention to matters, for this large bearing, we must do maintenance, storage and other work, so as to avoid the following damage to the turntable bearing, Resulting in normal use.

1, the installation of turntable bearings

Before the installation of the turntable bearing, the main installation of the host to check, requiring the support should have sufficient strength, the connection surface should be machined, the surface smooth without debris and burrs. For the machining can not be achieved to achieve the required flatness, you can use the injection of high strength of the special plastic filler, to ensure the accuracy of the installation plane and to reduce vibration. The turntable bearing rings are hardened soft zones, which are marked "S" on the end of the ferrule, which should be installed in a non-load or non-recurrent zone (the plug hole is always soft With the Department).

When mounting the turntable bearings, perform radial positioning, tighten the mounting bolts, and check the rotation of the bearings. Tighten the bolts should have sufficient preload, the preload should be the bolt material yield limit of 70%. Installation of bolts should be equipped with leveling flat washers and the use of spring washers.

2, turntable bearing maintenance

Installed and put into operation the turntable bearings in the continuous operation of 100 hours, should be a comprehensive check the installation of the bolt preload torque is in line with the requirements, after each continuous operation 500 hours to repeat the above check once. Tire bearing installation should be filled with the right amount of grease, and should be filled side of the rotation bearing to make grease evenly distributed. Turntable bearings in the work after a period of time, will inevitably lose part of the grease, so the normal operation of the turntable bearings every 50 to 100 hours after the supplement should be a grease.

3, turntable bearing transport and storage

Bearings in the transport process, should be placed horizontally on the vehicle, there should be to prevent sliding and to prevent vibration measures, if necessary, plus auxiliary support.