Adjust skf linear motion bearings errors countermeasures

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Every process in the the skf bearing parts processing, in order to obtain the size, shape, and position accuracy of the linear motion bearings machined surface, gotta tools, fixtures, and tool to adjust any adjustments will inevitably bring a certain degree o f error. Bearing parts of the production batch machining and machining accuracy often require different adjustment method is also different.
Such as high-volume skf bearing production, generally use the template, sample, file blocks and cam adjustment process systems; adjustments in single and small batch production, usually using the scale on the machine utilization block. Adjust the contents of the work due to the degree of complexity of the workpiece and adjust the positional relationship of each of the forming movement, generally only for the simple surface (e.g., inner and outer cylinders); For complex surfaces (such as helical surface, the involute surface), Also adjust the a shaping movement speed relationship. Therefore, the adjustment error is caused by a variety of factors.angular contact bearing
1. Mechanical damage
Serious when in contact with the outer metal stri pping occurs, as well as a large area of ​​clutter scratch; Under normal circumstances, the mechanical damage of the linear motion bearing alloy outer bush there are different levels of grooves. The contact surface damage and erosion phenomenon also exists the skf bearing mechanical damage caused mainly due to bearing appearance is difficult to form a film or film is severely damaged.
2. Bearing cavitation
The outer surface plastic deformation and cold hardening, linear motion bearings in the cylinder pressure shock load) repeated action. Partial loss of deformability, and gradually form a pattern and continues to expand, and then with the shedding of debris by the carrier outer surface to form a hole. General bearing cavitation occurs first pit, this pit then gradually expand and cause cracking of the alloy layer interface, the crack along the interface parallel to the direction of extension, until flaking far. The skf bearing cavitation main reason is due to the cross-section of the structural elements, such as oil groove and oil hole sudden change caused by strong oil flow disorders, the oil flow disorders vacuum region is formed bubbles, and then the pressure increases, the bubble collapse and cavitation. Cavitation generally occurs the skf bearing high load region, such as the lower bearing of the crankshaft main bearings.