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‌ heating before assembly ‌ : The outer ring and inner ring of cross roller bearing are usually interference fit or very small gap fit, so in the installation process, the method of oil bath heating or induction heating is generally used to heat the relevant parts. The heating temperature should not exceed 80℃, generally the bearing ring is heated first, and then the bearing outer ring is loaded into the seat hole, and then the installed bearing and the seat are heated at the same time, so that the bearing inner ring size expands, and then the bearing inner ring is loaded into the shaft. When using oil bath heating, it is usually necessary to design and make heating oil tank, heating electric heat pipe, temperature control device, detection device, etc. When using induction heating, it is necessary to control the temperature, and demagnetization treatment is required after heating ‌12.

‌ heating size control ‌ : Before the formal installation of cross roller bearings, it is necessary to actually test the heating size change of related parts to determine whether the heated size meets the installation requirements, so as to avoid installation failure due to the insufficient heating size change of parts. Generally, the assembly control time of the seat and bearing heating, the bearing inner hole assembly and the shaft assembly control time after heating should not be more than 30 minutes to ensure that there is sufficient dimensional expansion ‌12 in this time.

‌ pre-load adjustment requirements ‌ : in the installation and adjustment process of cross roller bearing, the most important adjustment work is the pre-load control. The amount of preload is usually controlled by adjusting the thickness of the gasket, and the torque of the rotary table is tested to verify the degree of preload. When pre-tightening, each bolt should control the torque consistency, and use the recommended tightening torque to tighten the bolt diagonally 2 to 3 times. Finally, the cross roller bearing can be installed in the workbench system, the whole machine test cutting processing, test the roughness of the workpiece to reflect whether the bearing preload is accurate, if necessary, you can adjust the bearing preload again, until the satisfactory roughness and performance ‌13.