The purpose of the lubrication NTN import bearing:
NTN import bearings lubrication aim is to reduce the internal friction bearings and loss, prevent burning stick, the lubrication utility as follows.

(1), and reduce the friction and the loss.
In the formation of the roller bearing rings, and keep the device touch each other parts, prevent metal contact, reduce the friction and wear.

(2), extend the fatigue life.
The import of the rolling bearing NTN fatigue life, in rotation, rolling contact surfaces good lubrication, the extended. On the contrary, low viscosity oil, lubricating oil film thickness is bad, is reduced.

(3) and charging the friction heat, cooling.
Circulation oil method can oil discharge by friction happen hot, or by external was hot, cooling. Prevent bearing overheating, prevent oil own aging.

(4), and other

Also have prevent foreign body into the internal bearing, or prevent rust and corrosion effect. Lubrication methods:

Bearing the lubrication method, divided into grease lubrication and oil lubrication. In order to make the bearing good use function, first of all, want to choose to suit the using conditions, use the purpose of lubrication method. If only consider lubrication, oil lubrication lubricity dominant. But grease lubrication, can simplify the structure of bearing is around the specialty, have grease lubrication oil lubrication and comparing the advantages and disadvantages in.

Bearing installation:

The installation of import bearings NTN correctly, affect precision, long life, a 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 parts relation;

(2), check the link the size of the parts and precision processing situation;

(3), installation;

(4), the installation of check after good bearing;

(5), supply lubricant.

Hope that in the coming before installation, have opened the bearing packaging. General grease lubrication, not to clean, direct filling grease. Lubricating oil, also need not ordinary cleaning, but, with the high speed bearings or instrument with to wash with clean oil, remove the rust on besmear in bearing. Remove rust bearing, easy to rust, so cannot place no heed. Moreover, already sealing grease into the bearings, not to clean use directly.

NTN import bearing installation method, for bearing structure, cooperate, conditions and different, 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.




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