Technical Information - Sealing
Any bearing, housing and support unit that is not suitably
sealed against its surrounding environment is unlikely
to achieve its full potential, either in terms of performance
or life span. The prevention of ingress of foreign materials
and contaminants is of paramount importance and should
be considered as early in the selection process as possible.
SRB units have inherent advantages over traditional
solid bearing arrangements when considering
sealing. The spherical location between housing and
support ensures that whichever type of seal is
used, it will always remain concentric to the shaft.
A wide variety of sealing solutions are available to
users of SRB products as "off the shelf" arrangements.
This range will cover the vast majority of operating
environments found throughout all industries. To cover
those situations where a proprietary arrangement is
not suitable, SRB Technical Services are able to work
closely with designers and end users to develop and
manufacture bespoke solutions tailored to specific applications.
SPLIT
ROLLER BEARING
|
 |
A
Split Roller Bearing takes up misalignment
by means of the spherical outside interface of
the housing.
This means the seals remain concentric
with the shaft at all times. This is a very effective
sealing arrangement.
|
SPHERICAL
ROLLER BEARING |
 |
A
Spherical Roller Bearing takes up
misalignment within the bearing, the housing is
static.
The result of any misalignment is
that the seal will be compressed on one side and
a gap will open on the other,
rending the seal ineffective.
|
Sealing Arrangements
|
Back