SKF bearing installation should be preceded with gasoline or kerosene cleaned, dried, and ensure good lubrication, double row deep groove ball bearings are generally lubricated with grease, oil lubrication can be used also. Greased, should be used without impurities, anti-oxidation, anti-rust, extreme pressure grease functional advantage. Grease filling is 30% -60% of the bearings and bearing capacity of the container, not too much. Double row deep groove ball bearings with sealing structure filled grease, the user can be used directly, not cleaning.
Installation of SKF bearings, bearings must exert equal pressure on the circumference of the ring face pressed into the ferrule the not hammer first class tools directly for percussion end bearings, so as not to damage the bearings. At room temperature in the case of the small amount of interference, with a sleeve onto the end face of the bearing rings, with the hammer beating sleeve, through the sleeve will be pressed into the ring balanced. Bulk installation, to be used in the hydraulic machine. Press-fitting, should ensure that the end face of the outer ring face and shell shoulder, inner ring end face of the end face of the shaft shoulder pressed, does not agree there is a gap.
(1) measurement of the size of the shaft and the bearing hole to determine with precision bearings, with the following requirements: take the inner ring and the shaft interference fit, the amount of interference 0 ~ 4μm (0) in light-load, high-precision; taken by the outer ring and the bearing hole with a clearance fit, the amount of clearance to 0 ~ 6μm (but in the free end of the bearing using the angular contact ball bearings, but also increases gap); shaft and the surface of the seat hole roundness error of 2μm or less, a double row deep groove ball bearing with the spacer end faces parallel to within 2μm or less, the shoulder axis within the face of the external end of the beating of 2μm or less; retaining shoulder of the bearing hole on the axis of the beating in the following 4μm; the spindle front cover the inner end face of the axis of the beating in 4μm or less.
(2) fixed end bearing shaft installed: the double row deep groove ball bearings with a thorough cleaning to clean the cleaning kerosene, containing 3% to 5% of the grease for grease lubrication, the first organic solvent into the bearings for the defatted after cleaning oil quantitative grease gun to fill in SKF bearings within (accounting for 10% to 15% of the bearing space volume); heating bearings so that the temperature rise from 20 to 30 ℃, oil press bearing onto the shaft; would tighten sleeve pressure on the shaft and end bearings axially positioned up against the right pressure; spring scale tape volumes in the bearing outer ring, the method of calibration measurements starting torque under preload whether there is substantial changes in (double row deep groove ball bearings are correct, but due to the tie or cage deformation preload changes may be).