Compared with ordinary bearings, the accuracy of cross roller bearings is higher, so the use of the corresponding caution, otherwise it will affect the working life of the bearing.
1. Cross roller bearings, which have been injected with German high quality grease before delivery, can be installed and used directly by users.Grease should be changed every 3 to 6 months.In the early stage of bearing use, due to the resistance of grease, the friction torque of bearing will be relatively large, and when the excess grease overflows, the torque will return to the normal value.
2. The inner ring or outer ring divided shall not be separated after being fixed with bolts and nuts, and can be directly loaded into the bearing seat for use.At the same time, if the assembly of the isolation block inside the bearing is wrong, it will have a great impact on the rotating performance and rolling body force, so please do not disassemble the bearing casually.
1). The seam of the inner ring or outer ring sometimes deviates somewhat.Before loading the bearing seat, loosen the bolts fixing the inner ring or outer ring, and fix them with a plastic hammer before installing.
2). When installing or disassembling, do not apply external force to the connecting bolt.
3). Please pay attention to the dimensional tolerance of the mounting parts so that the side pressing flange can press the inner ring or outer ring from the side.
3. The following procedures shall be followed when installing the cross roller bearing
1). Check parts before installation
Wash the bearing seat or other mounting parts to remove dirt and ensure that burrs have been removed.
2). Insert into the bearing seat or shaft
Since it is a thin-wall bearing, it is easy to tilt when inserting, please use the plastic hammer and so on to find out the level, while knocking evenly in the circular direction, insert bit by bit, until you can confirm through the sound and the contact surface is completely close.
3). Side pressure flange installation
(1) After placing the side compression flange in place, swing it back and forth in the circular direction for several times to adjust the position of mounting bolts.
(2) Install the compression bolt.When screw the bolt by hand, make sure it is not difficult to screw in due to the deviation of bolt hole.
(3) The tightening of the compression bolt can be divided into 3 to 4 stages from temporary tightening to formal tightening, and repeated tightening is carried out in the diagonal order (as shown in the figure below).When tightening the compression bolts of two divided inner or outer rings, it is often necessary to turn the integral outer or inner ring a little during the tightening process to correct the two parts.
4). The bearing storage place shall be clean and ventilated without corrosive gas, and the relative humidity shall not exceed 65%.
4. The products are coated with special anti-rust oil for bearings when packaging. Generally, the anti-rust effect can be up to 2 years.
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