has a low rolling noise requirements

In our production of standard bearings, some single row radial ball bearings andcylindrical roller bearings have powered machine bearings using low-noise variety. Wherein the ball bearing from φ60mm diameter φ2.5mm to a number of varieties with Zl, Z2 and Z3 three kinds suffix, corresponding to three different low noise requirements, and roller bearing type N309 to N322 from eight types of models have manufactured by low-noise standard varieties.
These bearings can be applied to other low-noise requirements of the machine, and the price is cheap, as in the type and size can meet the requirements, maximize the use of these two types of low-noise bearings.
(1) use of a relatively small bearing noise
When not using the two types of low-noise bearing, the noise can be relatively small bearings. Specific basis of comparison is as follows:
2) The ball bearing roller backing bearings noise ratio is low, fewer bearing sliding (friction) more noise than the sliding bearing is low;
3) using physical cage relative bearing noise than lower punch bearing cage; with plastic cage bearing noise than the above two bearing cage are low; ball a few more, the thickness of the outer ring, the noise is small,
4) high precision bearings, especially in the higher precision rolling element bearing, the noise than the low precision bearing noise is relatively small,
5) small bearing noise than large bearing noise is relatively small.Bearing ---- separable bearings with separable components;
6) non-separable bearings ---- bearings in the final package, the ring can not be separated any free bearings.
(7) bearing their structural shapes (eg with or without filling slot, with or without inner and outer rings and rings shape, wall structure, even without the cage, etc.) can also be divided into a variety of structural types.
B. By rolling bearing according to their size diameter size classification, divided into: