preload preload preload preload

” axle of Daye ” -Thrust get away the structural form of the sub bearing is analyzed


30th June 2010 Bearing Technology 0 Comments

Thrust roll sub bearing include thrust transfer heart roll sub bearing, the intersection of thrust and taper roll sub bearing, the intersection of thrust and cylinder get away sub bearing and thrust needle bearing.

Structural pattern

1. Thrust transfer heart get away sub bearing
Thrust transfer heart roll sub the intersection of bearing and the intersection of department and separating bearing, form by the thing that its load acts on line and bearing axis in certain angle, so this kind of bearing can bear axial and radial load at the same time, and can use in the extremely heavy load occasion, the rotational speed allowed is relatively high too. Thrust adjusts the heart and rolls the sub bearing has better adjusting heart performance automatically, the angle error allowed is 2 degrees – 3 degrees, but the angle error allowed exerts the increase of the actual load to the bearing to reduce at the same time. Such as 292, 293 and 294 three serial bearings, as Fa 2.7Fr=0.15Ca, its angle error allowed will be lowered to 1.5 degrees.
It has the bushing and not has two kinds of structure of bushing that the axle is enclosed and divided into

2. Sub bearing of cylinder roller of thrust
The cylinder of thrust rolls the sub bearing can bear unidirectional axial load, can limit the unidirectional displacement of the bearing, it is much greater than the axial bearing capacity of the thrust ball bearing, and rigidity is great, it is small to take up the axial space. Occasion low in rotational speed mainly for the bearing.

3. Thrust taper get away sub bearing
The thrust taper rolls the sub bearing can bear unidirectional axial load, can limit the unidirectional displacement of the bearing, it has larger axial bearing capacity than thrust cylinder bearing, the terminal rotational speed is higher than the cylinder of thrust and roll the sub bearing slightly.

4. Rolling mill pigeonhole down the intersection of thrust and taper get away sub bearing
Rolling mill pigeonhole down the intersection of thrust and taper roll sub bearing belong to, put, get away son while being full, can bear the large unidirectional axle load.

Keep the shelf
Adopt copper ‘ Steel Making entity car makes and keeps the shelf.
Roll the body
Thrust transfer heart roll whom sub bearing adopt roll body, get away son for asymmetrical sphere, keep symmetrical sphere, get away son for user.










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