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1 the copper and manual hammering installation
This is a simple method of installation of small KOYO bearings. When the inner ring of the bearing outer ring is tightly matched, is a loose fit, the copper bars close to the bearing inner ring face, direct percussion hammer by copper, copper stress, the bearing is mounted to the shaft. The inner ring of the bearing is large, available copper along the bearing inner ring face evenly around hard hit, not only on the side, can not be too hard to beat, symmetry, gently tapping slowly on, in order to avoid strike oblique fissure bearing.
2 use the sleeve installation
The method and installation of KOYO bearing the same reason the copper. It is the direct pressure on the bearing surface (bearing installed in the shaft on the end face of the inner ring is pressed; mounted in the housing bore on the outer end face), percussion hammer can be evenly distributed in the installation of the bearing of the ferrule end face, and can be used in conjunction with the press, the installation of labor-saving and time-saving, reliable quality. Sleeve installation should be made for soft metal (copper or low carbon steel pipe.). If the bearing is mounted on the shaft, the inner diameter of the sleeve should be slightly larger than the Journal 1-4mm, outer diameter is slightly smaller than the diameter of the inner ring of the bearing retaining edge, or taking the sleeve thickness as the standard, the thickness should be made equal to the thickness of the 2/3-4/5 bearing inner ring, and both ends of the sleeve should be flat and cylinder body vertical. If the bearing is installed in the base hole, the sleeve diameter should be slightly smaller than the outer diameter of the bearing.
3 there is a press press law: KOYO bearing ring face mounting pressure should be applied directly to the interference fit, otherwise it will cause broken the working surface of the bearing, the bearing quickly damage.
4 heating installation
For the installation of a large amount of surplus KOYO bearing or large size bearing, in order to facilitate the installation, can use the principle of heat expansion and cold contraction, the bearing heating in the tank after the copper rod, sleeve and a hammer to install. Heating temperature control in 100 ℃, 80-90 ℃ appropriate. When the temperature is too high, easy to cause the bearing ring raceway and rolling body annealing effect, hardness and wear resistance, resulting in bearing life and reduce premature retirement.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 4T-32005X NTN | 25 | 47 | 15 |
| 4T-320/22X NTN | 22 | 44 | 15 |