sealed bearings
sealed bearings
Author :Admin | Publish Date:2013-03-07 17:31:03
Picture a bearing with balls between the inner and outer surfaces (called
races). Traditional bearings use steel balls, either loose between the surfaces
or sealed within some sort of container. Modern hybrid ceramic [sealed bearings]
have ceramic balls inside steel races. Full ceramic bearings have the inner and
outer races also in ceramic. The more ceramic components in a bearing, the
greater the cost, but there are some advantages.
High quality lithium grease lubricated sealed bearings use specially
tested. This grease can withstand the high temperatures of 120 degrees short
time. If a stable working temperature reaches 70 degrees or higher, standard
lithium grease life will be shortened.
If you are using a high temperature synthetic material is sealed, then also
consider this very effective fluoride material in more than 300 degrees, to emit
harmful health gases and smoke. Especially demolished tapered roller bearings to use a welding torch, but also to pay attention to
this.
1. Tapered roller bearings bear the load capacity is much smaller than the
same volume of the sliding bearing, therefore, the radial dimension of its
Rolling. Withstand large loads of occasions and small radial size requirements,
structural requirements for compact occasion <such as an internal combustion
engine crankshaft bearings>, the use of sliding timken bearings.
2. Bearing vibration and noise, especially in late will emerge. Therefore,
high precision bearing requirements, Xu Youzhen without moving occasion,
generally used in plain bearings better.
3. Tapered roller bearings are particularly sensitive to foreign matter
such as metal shavings, once mixed foreign matter, it will produce a relatively
large vibration and noise of the intermittently, easily lead to damage. So there
are certain limits in the life of a rolling bearing. In summary, like the life
of fag bearings than plain bearings shorter
D2760
D40210-0Z000
D40210-4700
Prev:sealed bearings Next:sealed bearings