On the outer ring flange at the upper side of the intermediate shaft in vertical high-speed pumps, there is a notch that can be used to remove and insert the bearing balls.
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Why is this type of bearing designed in this way?
This type is called a rolling bearing with filler grooves, and more balls can be added to it; it is not recommended to use this type of bearing when thrust loads are present.
There is no axial force in medium-speed pumps! Isn’t the number of balls fixed? Can it be added arbitrarily? What are the advantages?
This is the ball bearing with the maximum capacity; no more can be added. It has the highest load capacity and a low level of eccentricity (2–5 arcminutes; 1 degree = 60 arcminutes).
There must be a retainer; you can take a look at bearings of the same specification without fill slots and see how many balls there are.
With a cage, the number of balls is fixed!
Is this design intended to facilitate installation?
The spacing between the balls can be changed; this design allows for the maximum number of balls to be placed.
Should this structure be considered from the perspective of lubricating oil? For example, it can serve as an inlet for forced lubricating oil, and also facilitates the removal of worn iron shavings.