JPS6020830Y2 - Non-separable rolling bearing - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a non-separable rolling bearing in which a bearing ring and a bearing ring or a side ring are connected using an endless coupling ring having staggered notches.

Due to bearing assembly considerations, bearings in which the bearing rings are separated or the bearing rings and the side rings are separated are often used, especially in roller bearings.

For example, a NUP type cylindrical roller bearing is separated into three parts: an outer ring 1 with rollers, an inner ring 2, and a side ring 3, as shown in FIG.

By fitting the U-shaped coupling ring 4 into the circumferential groove 5 formed on the bearing ring and the side ring, respectively, to make the bearing non-separable, it is easy to assemble the bearing to the shaft or housing. Ta.

Note that 6 indicates the rollers.

However, since the coupling ring has high rigidity and poor elasticity, it is difficult to assemble, and the number of man-hours required for assembly is unavoidable.

In addition, a coupling ring with a notch was used, but this was due to the change in aperture according to the curved ring theory, and such a coupling ring was easily dislodged, making it difficult to achieve dimensional accuracy.

In this invention, a coupling ring having a U-shaped cross section, which has elasticity by providing a plurality of notches in a staggered manner from one side edge of an endless coupling ring to the other side circumference, is coupled to a bearing ring and the bearing ring. The present invention relates to a non-separable rolling bearing that is fitted into a circumferential groove formed in a bearing ring or a side ring, thereby eliminating the above-mentioned drawbacks.

Next, an embodiment of this invention will be explained with reference to the drawings. Fig. 2 is a perspective view of a coupling ring, in which a large number of notches 7 are formed on both sides at equal positions on the circumference, and each notch is are alternately located on both side edges 9,10.

In addition, as shown in Figure 3, A9, the notches are provided from the perpendicular bisector X-Y of the coupling ring width 1 toward the other end, but the number of notches and It can be manufactured by appropriately selecting the size of the notch depending on the conditions of use.

To assemble a bearing, take the case of a NUP type cylindrical roller bearing as an example and explain it with reference to FIG. 4. As shown in FIG. It is pressed and fitted into the circumferential groove 5 of the inner ring 2.

Next, when the side ring 3 is pressed from above as shown by arrow A in the drawing, only the outer diameter of the other side temporarily contracts due to the notch in the coupling ring 4, as shown in the opening of Fig. 4. and engages with the circumferential groove 5 of the side wheel 3.

When the pressing force is removed, the ring returns to its original shape due to its elasticity, and the connection is complete, and the connection ring will not come off.

Furthermore, if the dimensions of the bearing are quite small, the number of notches 7 can be increased to create a spring-like shape as shown in Figure 5A, and compressed until the edges of the notches are in close contact with each other as shown in the opening in the figure. It can also be used to connect bearings.

Further, FIG. 6A-9 shows another embodiment of the present invention.

As mentioned above, this design uses a ring with a U-shaped cross section in which a plurality of notches are alternately provided in a staggered manner beyond the bisector of the width of the endless coupling ring toward the other side periphery. The beam principle works to not only provide sufficient rigidity and elasticity, but also to expand and contract the diameter like a spring, making it extremely easy to connect the bearing to the shaft or housing. Assembly can be facilitated.

Furthermore, by appropriately selecting the position and number of the notches in the coupling ring, desired rigidity can be obtained, and a non-separable bearing suitable for the usage conditions of the bearing and the size of the bearing can be obtained.

[Brief explanation of the drawing]

Fig. 1 (A) 9 is a sectional view of a non-separable rolling bearing, Fig. 2 (A) is a perspective view of the coupling ring, Fig. 3 (A) 9 is a partial front view of the coupling ring, and Fig. 4 (A) 9 is a bearing connection. An explanatory diagram of the state, Fig. 5 is an explanatory diagram of a coupling ring used in a small bearing, and Fig. 6 is an explanatory diagram of the coupling ring used in a small bearing.
Figure A9 is a half sectional view of another embodiment of this invention. 1... Outer ring (raceway ring), 2... Inner ring (
raceway ring), 3...Side ring, 4...Coupling ring, 5...Peripheral groove, 7...Notch, 9
, 10...Both periphery, X-Y...Vertical bisector, 1...Width of coupling ring.

Claims (3)

[Scope of utility model registration request] (1) An endless coupling ring having a U-shaped cross section is fitted into a circumferential groove formed on the circumferential surface of a raceway ring and the other raceway or side ring coupled to the raceway ring, and the coupling ring A non-separable rolling bearing characterized in that a plurality of notches are alternately formed in a staggered manner from one side circumferential edge to the other side circumferential edge across the perpendicular bisector of the width of the coupling ring. (2) A non-separable rolling bearing according to claim 1 or claim 2 of the utility model registration, in which a coupling ring is fitted onto the inner diameter surface. (3) A non-separable rolling bearing according to claim 1 or 2 of the utility model registration claim, in which a coupling ring is fitted onto the outer diameter surface.