Fixed bearing configuration
Avoid bearing jamming and understand bearing three typical bearing configurations:
The double fulcrum is fixed in one direction
This configuration allows each fulcrum to axially fix the shafting in one direction. The defect is that the two fulcrums are fixed by the bearing cover, so when the shaft is heated and extended, it is bound to make the shaft bear the effect of additional load and affect the service life. Therefore, this form is only suitable for occasions with low working temperature rise and short shaft (span L ≤ 400mm). For deep groove ball bearings, the axial clearance C between the bearing outer ring and the bearing cover shall also be reserved, taking C = 0.2 ~ 0.4 mm to compensate for the thermal elongation of the shaft. Due to the small clearance, it may not be drawn on the drawing. For angular contact bearings, the thermal compensation clearance is guaranteed by the clearance inside the bearing.
