When selecting the fit, the type of load borne by the ferrule should be Iko One-Way Bearing considered first. Generally, there are three types of load borne by the ferrule:
1 fixed load
The synthetic radial load acting on the ferrule is borne by the local area of the ferrule raceway and Iko One-Way Bearing transmitted to the relative area of the shaft or IKO one-way bearing seat. This load is called fixed load.
The characteristic of fixed load is Iko One-Way Bearing that the synthetic radial load vector is relatively static with the ferrule. Both the ferrule and the synthetic radial load do not rotate or rotate at the same speed, which are fixed loads. Loose fitting can be selected for ferrule bearing fixed load.
2 rotating load
The synthetic radial load acting on the ferrule rotates along the circumferential direction of the raceway and is successively borne by each part. This load is called rotational load.
The characteristic of rotating load is that the synthetic radial load vector rotates relative to the ferrule. Iko One-Way Bearing There are three cases of rotating load:
(1) The load direction is fixed and the ferrule rotates;
(2) The load vector rotates and the ferrule is stationary;
(3) The load vector and ferrule rotate at different speeds.
Sometimes the direction and size of the load cannot be determined accurately. For example, in high-speed rotating machinery, in addition to the load borne by the rotor weight which is fixed in the direction, there is also the rotating load caused by the unbalanced mass.
If this rotating load is much larger than the fixed load, the combined load is still the rotating load; If the rotating load is much smaller than the fixed load, the composite load is the swing load. No matter rotating load or swinging load, its size and direction are constantly changing.
In the variable working state, the load on some ferrules may be Iko One-Way Bearing rotating load, fixed load or swinging load. This kind of load is called indeterminate load.
Swing load and indefinite load should be treated equally with rotating load in terms of fit. Too Iko One-Way Bearing loose fit will cause damage to the mating surface.
Transition fit or interference fit shall be selected for the ferrule rotating relative to the load direction and the shaft or seat hole. The interference size is based on the principle that when IKO one-way bearing works under load,
its ferrule does not produce “creep” phenomenon on the matching surface on the shaft or in the seat hole. When the load is very light or the ferrule rotates occasionally at low speed under the action of heavy load, the transition fit can be selected. At this time, the shaft surface should have high hardness and small surface roughness.
For heavy load occasions, it is usually tighter than that in light load and normal load occasions. The heavier the load, the greater the fit interference.