DE3822472A1 - Radial rolling bearing - Google Patents

Abstract

The invention relates to a radial rolling bearing which is designed as a clamp-ring bearing and in which the inner race can be fixed in a defined position on the associated shaft by means of a clamping ring by way of eccentric, mutually corresponding ring extensions. The essential point of the invention is the proposal, for the purpose of safeguarding against axial displacement and radial detachment, additionally to brace the two eccentric ring extensions (2', 5') against one another by means of at least one retaining screw (7). <IMAGE>

Description

The invention relates to a radial roller bearing according to the generic concept of claim 1. So far were such bearings against axial displacement secured on the shaft by the clamp ring with a locking screw was clamped directly opposite the shaft. Apart from the fact that this causes the waves surface was damaged and consequently the bearings disassembly was difficult due to this Measure does not ensure that Kelmmring and bearing inner ring by radial twisting released their tension. For safety reasons against loosening the eccentric connection the assembly of the described bearing arrangement in addition, the tightening of the clamping ring always in rotation direction of the shaft, which requires special care required.

The described disadvantages of the known solution become direct with elimination of the shaft and clamping ring tensing locking screw through the gauge ver according to the characterizing part of claim 1 avoided. Particularly advantageous solutions result from the wording of claims 2 and 3.  

The invention is explained by way of example with reference to the drawing.

Show it:

Figure 1 is a partial section through a bearing arrangement of the type in question.

Fig. 2 shows a section along the line II./.II in Fig. 1 and

Fig. 3 shows a section along the line III./.III in Fig. 2.

1 denotes a shaft onto which the radial roller bearing 4 consisting of inner ring 2 and outer ring 3 is pushed. The clamping ring has the reference numeral 5 and has an eccentric ring extension 5 ', which cooperates with the eccentric extension 2 ' of the inner ring 2 . The fixed setting of the bearing 4 on the shaft 1 is done by engaging with a hammer and mandrel or with a special key in the tool bore 6 and clockwise by Radialbe movement, the clamping effect is achieved. Disassembly is carried out in the same way.

With 8 the clamping point is designated at which the eccentric parts 2 'and 5 ' abut each other. Tensioning screws 7 secure the eccentric parts according to the invention against loosening of the eccentric connection par excellence, both in radial and in axial view.

1 wave
2 inner ring
3 outer ring
4 radial roller bearings
5 clamping ring
5 ′ eccentric ring extension
2 ′ eccentric ring extension
6 tool bore
7 locking screw
8 clamping point

Claims (3)

1. Radial roller bearing, which is designed as a clamping ring bearing such that the bearing inner ring can be fixed by means of a clamping ring on the associated shaft, an eccentric extension of the inner ring cooperating with a corresponding extension of the clamping ring, characterized in that the eccentric extension ( 2 ') of Inner ring ( 2 ) and the eccentric extension ( 5 ') of the clamping ring ( 5 ) is secured against loosening of the eccentric connection by at least one of the two extensions ( 2 ', 15 ) additionally tightening locking screw ( 7 ). 2. Bearing according to claim 1, characterized in that the locking screw ( 7 ) is arranged in the peripheral region of the largest eccentric play. 3. Bearing according to claims 1 and 2, characterized in that two locking screws ( 7 ) are provided, which preferably form an angle of 120 ° with their axes.