Fit
Fitting of Models RU
Fitting for model RU is typically not required. However, for fitting requiring positioning accuracy, h7 and H7 are recommended.
Fitting of Models RB and RE
For the fitting of models RB and RE, we recommend using the combinations indicated in Table1 .
Table1 Fitting of Models RB and RE
| Radial clearance | Service condition | Shaft | Housing | |
|---|---|---|---|---|
| CC0 | Inner ring rotational load | Normal load | g5 | H7 |
| Large impact and moment | ||||
| Outer ring rotational load | Normal load | |||
| Large impact and moment | ||||
| C0 | Inner ring rotational load | Normal load | h5 | H7 |
| Large impact and moment | ||||
| Outer ring rotational load | Normal load | g5 | Js7 | |
| Large impact and moment | ||||
| C1 | Inner ring rotational load | Normal load | j5 | H7 |
| Large impact and moment | k5 | Js7 | ||
| Outer ring rotational load | Normal load | g6 | Js7 | |
| Large impact and moment | h5 | K7 | ||
- For the fitting for clearance CC0, avoid interference because it will cause an excessive preload. In addition, if higher rigidity is required, we recommend measuring the inner and outer diameters of the bearing and applying a slight interference fit to match the diameters.
Fitting of the USP-grade
For the fittings of the USP-grade series of models RB and RE, we recommend using Table2 .
Table2 Fitting of the USP-grade
| Radial clearance | Condition | Shaft | Housing |
|---|---|---|---|
| CC0 | Inner ring rotational load | h5 | J7 |
| Outer ring rotational load | g5 | Js7 | |
| C0 | Inner ring rotational load | j5 | J7 |
| Outer ring rotational load | g5 | K7 |
- Note) It is recommended that you measure the inside and outside diameters of the bearing and provide a slight interference fit for those measurements.
Fitting of Models RAU, RA and RA-C
For the fitting of models RAU, RA, and RA-C, we recommend using g5 and g6 for the shaft and H7 for the housing.
- Note) When using a Model RAU (small-diameter, 5 mm thin type), please design devices so that there is no interference.
