1) ball bearing roller bearing noise ratio is low, relative sliding less spherical roller bearings (friction) more noise ratio relative sliding bearings low;
2) Using solid cage spherical roller bearing noise ratio relative to use stamping cage bearing low; using plastic cage bearing noise than the above two cage bearings are low; ball a few more, and the outer ring thick, the noise is small,
3) high precision bearings, especially used by the body to move with greater precision bearings, the noise than the low precision spherical roller bearing noise is relatively small,
4) small bearing noise than large bearing noise is relatively small.
Product Model | Inside Diameter | Outside Diameter | Thickness |
30334 NTN | 170 | 360 | 72 |
30334U NTN | 170 | 360 | 72 |