1 NSK bearing, preparation

Since the bearing antirust processing and packaging after it, so in less than before installation don't open the package.
In addition, bearing on the coating with good lubrication performance oily-type, for general use of bearing or bearing grease filling, but does not need cleaning use directly. But for instrument used for high-speed bearing or with the bearing, the application of clean cleaning oil will wash to temporary, when bearing is easy to rust, do not be placed for long.

2, the shaft and the shell of the inspection

Cleaning bearing and the shell, ensure there is no scars or mechanical processing leave spines. The enclosure shall not have absolute abrasive (SiC, Al2O3, etc) sand, chip, etc.

Second inspection shaft and the shell size, shape and processing quality and whether it with drawings.

NSK bearing installation method, for bearing with, condition, structure and decide, generally, it is because for axis rotation, so inner circle over surplus to cooperate. Cylindrical holes bearing, multi-purpose pressed into the press, or use hot charging method. Cone hole occasions, installed directly to the taper axis, or with the sleeve installation.
Installation to shell, with general clearance, outer ring had surplus quantity, usually with pressed into the press, or have after cooling method of installation with cold. With dry ice for cooling agent with the occasion of installation cold, moisture from the air will be condensed in the surface of the bearing. So, need appropriate antirust measures.

Installation NSK bearing is correct, impact on the life, the precision and the performance. Therefore, design and assembly department for the installation of the bearing should fully research. Hope according to the standard installation work. The project operation standard usually are as follows:

1, cleaning bearing and bearing connection parts

2, check the bearing the size of the components associated and finishing

3, installation bearing

4, installed bearing the check after

5, to bearing supply lubricant

One, the installation methods

NSK bearing installation should be based on the bearing structure, size and bearing parts with the nature and decide, pressure should be added to a tight fit directly to the ring width, and shall not through transfer roller pressure, bearing installed general use of the method are as follows:

The installation of thrust bearing

Thrust bearing of the thorough and shaft with general for transition cooperate, a circle and the bearing of the hole with general for clearance fit, so the bearing is easy to install, two-way thrust bearing the axes of the shafts should be fixed, in order to prevent the relative to the rotation axis. Bearing installation method, usually is the axis rotation in the majority, so the inner circle of shaft for win with coordination, bearing outer ring and bearing the room with clearance fit for.

Pressure with the

NSK bearing inner circle is a tight fit axis to make, outer ring and housing is a loose with holes, usable press will be pressed on the shaft bearing first, and then will shaft bearing load bearing together together with the hole, and when pressed in bearing inner circle on the surface, a soft metal mat material of assembly casing (copper or mild steel), assembling the inner diameter of the casing shall be slightly larger than the shaft neck diameter, outer diameter circle of inner diameter than the bearing should be raised edge slightly small, lest the pressure in keep on the shelf.

Two, cleaning bearing and related parts

To have the bearing grease lubrication and bilateral with oil seal or dust cover, the sealing ring NSK bearings without cleaning before installation. Check the relevant part size and finishing.




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