Writer: Eric Bearing Limited
Depending on the mechanical equipment, the use of SKF bearing type operation will also be different. The use of the bearing is selected according to the requirements of the mechanical use. Then how to adjust the clearance of the bearing in different machinery? Based on the knowledge of different types of bearings, Eric Bearing Limited will share how to adjust the clearance of different mechanical bearings. I hope it will be helpful to everyone.
1. SKF tapered roller bearing inner ring in front wheel hub of car
Clearance adjustment method: generally use crown nuts with split pins, fin washers, and stop washers to adjust and fix (it is not advisable to use a back nut to lock the journal nut, because the adjusted bearing clearance will be affected by the thread The meshing gap changes), so that the support has a small amount of pre-interference.
2. Centering of the traveling wheel of the mine cart
Similar to a car wheel, the difference is that the driving force is larger and the speed is lower, so tighter adjustments are required.
Clearance adjustment method: generally use crown nuts with split pins, fin washers, and stop washers to adjust and fix (it is not advisable to use a back nut to lock the journal nut, because the adjusted bearing clearance will be affected by the thread The meshing gap changes), so that the support has a small amount of pre-interference. Today , Eric Bearing Limited share SKF 6311 2RSJEM bearings , if interested , pls contact us .
3. Steering gear king pin bearing
Clearance adjustment method: For the structural height tolerances of the SKF thrust bearing, steering yoke and shaft jaws here, use washers to adjust during assembly. Therefore, washers of various thicknesses should be available.
4. SKF cylindrical roller bearings and SKF thrust ball bearings in the lathe spindle
The smaller the clearance of the SKF bearing support, the higher its rigidity and working accuracy.
The adjustment method of the clearance: the working temperature rises as the clearance decreases. Therefore, it is necessary to find the best matching relationship between clearance and temperature during installation. Fasten the inner ring of the cylindrical roller bearing to the tapered journal with a nut to reduce its radial clearance; at the same time, use a nut to adjust the thrust bearing assembly to no clearance. The spring arranged between the two thrust bearings can keep the required pre-interference for the bearing unloaded due to the working pressure.
5. Heavy-duty steel rope support for cranes with low speed and large force
The adjustment method of the clearance: Use a nut to tighten and adjust the tapered roller bearing to have the necessary pre-interference.
6. The bearing of the tiller will be subjected to strong vibrations in a static state and in a small rotary motion
How to adjust the clearance: There must be no clearance, otherwise the roller will hit the raceway. Therefore, the radial clearance of the bearing before installation should be less than the clearance of group 0. It can be calculated from the original radial clearance value, the taper of the bearing conical mating surface and the thread pitch of the compression screw. How many rotations of the compression screw are needed to achieve the pre-interference required for the bearing's clearance-free fit.
7. SKF two-way thrust ball bearings
Clearance adjustment method: adjust with a nut. After adjustment, the bearing should have a considerable pre- and interference, so that a row of balls unloaded during work can still move reliably along the bottom of the groove.
8. SKF Thrust Ball Bearing
Clearance adjustment method: usually also use a fixed cover with gaskets for clearance adjustment. The thrust ball bearing is best installed on the vertical shaft, because the steel ball cage can be kept relatively concentric with the ring.