JPS62177316A - Installing method of rolling element in rolling bearing or swiveling caster - Google Patents

Abstract

PURPOSE:To assemble rolling elements reliably and easily, by preliminarily inserting a required number of rolling elements into a soft bag-like holder, installing the rolling elements continuously assembled by the holder, and then removing the holder. CONSTITUTION:A holder 1 is formed of a thin-walled soft water-soluble polyvinyl, and is formed in a bag-like shape having a desired length. The holder 1 contains ball-like rolling elements 2 each having a desired diameter in the number required for one time of installation. The holder 1 containing the rolling elements 2 is formed in a circle. Then, the holder 1 is installed between an upper ball supporting portion and a lower ball supporting portion of a swiveling caster,and is assembled with a mounting washer 5 and a wheel mounting body 6 through a caulking step. Thereafter, the swiveling caster is immersed in a water tank so as to remove the water-soluble holder 1, thus completing the swiveling caster.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for assembling rolling elements in rolling bearings or swivel casters.

(Prior Art) Generally, rolling bearings or swivel casters require the incorporation of a large number of rolling elements such as balls, rollers, needles, etc.

Conventionally, rolling elements in rolling bearings or swing casters have been assembled by assembling the necessary number of rolling elements one by one.

In other words, when assembling, the required number of rolling elements such as balls, rollers, needles, etc. are taken out one by one and assembled into a race, etc., although there are differences in whether they are stored separately or in a row. .

Some rolling bearings use cages, but rolling elements are assembled one by one into the cage.

(Problems to be Solved by the Invention) A single rolling bearing or swing caster requires a large number of rolling elements, but if the rolling elements are installed one at a time, work efficiency is poor.

In addition, when assembling thrust ball bearings, swivel casters, or rolling bearings that can be disassembled and assembled freely, it is easy to assemble just one rolling element, but it is extremely difficult to assemble all the required number of rolling elements. However, it is necessary to apply grease to the races and the like in advance to hold them until all the rolling elements are assembled, resulting in problems such as poor work efficiency.

(Means for Solving the Problems) In order to solve these problems, according to the present invention, a rolling element that is a ball, roller, or needle in a rolling bearing or a rolling element for swinging in a swing caster is provided. The assembly method includes placing the necessary number of rolling elements in a soft bag-shaped holder in advance, incorporating the rolling elements formed continuously by the holder, and then removing the holder. A method for assembling a rolling element in a rolling bearing or a swivel caster is provided.

In the above configuration, the holding body is made of a water-soluble material,
After assembly, it can be removed by dissolving it with water or hot water.

Further, in the above configuration, the holding body is made of a combustible material and can be removed by burning after assembly.

Further, in the above configuration, the holding body is made of a material that is soluble in chemicals outside the waterside, and after assembly, it can be dissolved by the chemicals and removed.

Furthermore, in the above structure, the holding body can be formed into a net shape having a large number of holes.

(effect) The above technical means works as follows.

The rolling elements, which are originally separate, are formed into a continuous piece by being placed in advance in a holder.

As a result, first, the assembly works so that the quantity control, handling, storage, etc. of the rolling elements are facilitated in the previous state.

That is, the assembly can be prepared in advance in the units of quantity required for assembly, and the quantity can be controlled by the length of the holder containing the rolling elements, or by different diameters, etc. Many types of rolling elements can also be managed for each holder.

Next, in some cases, the required number of rolling elements can be assembled at once, and complex assembly is also possible, such as when mounting upwards or on an inclined surface, or when rolling elements are assembled in multiple stages. Since the rolling elements can be handled in units of the required number, each individual rolling element functions so that it can be easily assembled without falling off.

After assembly, the holder becomes unnecessary; for example, if the holder is made of water-soluble material, it can be immersed in a water tank or the like to dissolve the holder and remove it together with the water. The rolled elements function as if they were to perform their functions without any hindrance.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings (11
is a holder made of thin and soft water-soluble polyvinyl, and the holder +11 is formed into a bag shape of a desired length.

(2) is a ball-shaped rolling element having a desired diameter, and the number of rolling elements (2) required for one installation into the holder (1) is as shown in FIG. It is inserted as shown.

As shown in FIG. 2, the holder (1) in which the rolling element (2) is inserted is formed into an annular shape, for example, the upper corrugated ball receiving portion (3) and the lower corrugated ball receiving portion (
4), install the mounting seat plate (5) and the wheel mounting body (6).
It is then assembled through a caulking process.

Thereafter, the assembled swivel caster is immersed in a water tank (not disclosed) and the water-soluble holder (11 is dissolved in water and removed). is obtained.

The holder (1) may be shaped like a bag having a desired length from the beginning of the head, or may be shaped like a bag by closing one end of the cylindrical shape, or may be shaped like a long tube as desired. It may be cut to length and one end closed, or both ends may be closed after the rolling element is inserted.

Furthermore, although it is common practice to seal in a lubricant such as grease in the part where the rolling element (2) is installed, the above-mentioned holder (
When placing the rolling element (2) in 1), a lubricant may be added together in advance.

The present invention is not limited to the above embodiments, and the holder may be of any type as long as it can be removed after assembly. For example, after assembly, the holder may be removed by pulling out or tearing it out. is also often optional.

(Effects of the Invention) As explained above, the present invention enables the management and handling of loose rolling elements at least in units of the number required for assembly, and the quantity management, inventory management, and transportation of rolling elements. Not only is it easier, but complicated assembly also has the effect of making it possible to assemble the rolling elements easily and reliably during work.

[Brief explanation of drawings]

The drawings show one embodiment of a method for assembling a rolling element in a rolling bearing or a swing caster according to the present invention, and FIG. 1 is a partially cutaway front view of the holder, and FIG.
The figure is a front view of the molded holding body, and FIG. 3 is a partially broken perspective view of the swing caster. In the drawings, (1) is a holder, (2) is a rolling element, (
3) is the upper pole receptacle, (4) is the lower corrugated ball receptacle, (5
) indicates the mounting seat plate, and (6) indicates the wheel mounting body.

Claims (1)

[Claims] 1. A method for assembling rolling elements such as balls, rollers, or needles in a rolling bearing, or rolling elements for swinging in a swing caster, in which a required number of rolling elements are held in advance in a soft bag-like shape. 1. A method for assembling a rolling element in a rolling bearing or a swing caster, which comprises: inserting the rolling element into a body, assembling the rolling element continuously formed by the holder, and then removing the holder. 2. A rolling element in a rolling bearing or a swing caster according to claim 1, wherein the holding body is made of a water-soluble material and is removed by dissolving it in water or hot water after assembly. How to assemble. 3. The method for assembling a rolling element in a rolling bearing or a swing caster according to claim 1, wherein the holder is made of a combustible material and is removed by burning after assembly. 4. Rolling in a rolling bearing or a swing caster according to claim 1, wherein the holding body is made of a substance that is soluble in a chemical other than water, and is removed by dissolving it with the chemical after assembly. How to assemble elements. 5. A rolling element in a rolling bearing or a swing caster according to any one of claims 1 to 4, wherein the holding body is formed in a net shape with a large number of holes. How to assemble.