We know that most of the bearings are damaged in general after the replacement, but for some
bearings, repair up if the cost is not high, we will choose to repair the bearing.
Reference transformation combined repair method
Sometimes the design standard is too large, can not be used, it is to choose some other surface as a benchmark, while the size of the chain re integration. Hengding hub says for example, if the bearing body deformation is too large should to the rotary component as a benchmark, re processing and correcting bearing body, then according to the re processing of the bearing body size, adjust the assembly dimension chain by adjust the ring repair method, according to the arrangement of the dimension chain sequence detection and repair, finally reached a closed control loop precision.
Datum invariant combined repair method
When repairing and adjusting the precision of the dimension chain, according to the principle of the principle of reference, only one datum is chosen, that is the design standard, and all the other surfaces are the datum. The combined repair standard is convenient to check the accuracy and reduce the accumulated error. For example, repair the coupler, often in the bearing body for reference.
1 proper viscosity and good viscosity temperature characteristics
Hengding hub representation for the machine tool spindle temperature is not too high and make the machine heat distortion, affect the machining precision or the bearing lubrication bad, should according to the spindle bearing structure, rotational speed and bearing clearance and selects the appropriate temperature of lubricating oil and its good viscosity temperature characteristics, prevent for spindle temperature and environmental temperature change is large, changes in viscosity is too large and its impact on the lubrication performance.
2 good lubrication
In order to maintain a uniform oil film between the spindle and the bearing contact surface and the spindle start or stop motion produced by impact load of oil film also not be damaged to maintain good lubrication performance has reduced the friction and the friction heat and lower the spindle temperature rise, to ensure the machining accuracy and good lubrication performance is required.
3 good oxidation resistance
Machine spindle in the use of circular lubrication, the requirements of the spindle bearing oil for a long time without deterioration, so the requirements have good oxidation resistance.
4 good rust resistance
Because of the oil in the main shaft lubrication system working process will inevitably be mixed with air in the condensed water or machine tool coolant, so the oil has a good rust resistance.
