Application of seal on oil film bearing
of rolling mill
Oil film bearing is also called liquid
friction bearing. In the process of rolling the mill, liquid lubrication is
used to form a complete pressure oil film between the cone sleeve and bushing.
The oil film completely separates the casing from the cone sleeve and runs at
relatively high speed with no direct metal contact.
A sealing device is an important part of
oil film bearing.
There are three main characteristics of
the oil film bearing rotary seal:
1) two-way medium (water or emulsion,
lubricating oil) seal
2) Pressure difference on both sides,
but jet or splash
3) The seal rotates with the roller at
The rotary seal of the oil film bearing
in the rolling mill is lip seal. Lip seal mainly depends on the tip of the
sealing lip to compress the sealing coupling surface. Theoretically, it should
be line contact, but in fact, it is narrow-band contact, with enough compression
force, contact stress is peak.
The lip seal should not be pressed too
tightly and the contact band should not be too wide. Analysis from the dual
Angle of lubrication and sealing, that is: if the pressure is too large, the
surface of the seal and coupling will be in a semi-dry friction state,
aggravating the wear and heating of the seal, shortening the service life.
If the contact zone is too wide, thicker
wax lubrication may develop, which can leak outwardly and reduce the sealing
FV Bearing can not only produce standard
models to replace well-known international brands, but also make design
improvements according to the specific requirements of customers. If you have
any requirements for rolling mill bearings, please contact FV, send an
email to firstname.lastname@example.org. Describe your needs and
we’ll reply within 48 hrs.
The price of rockwell hardness
The price of rockwell hardness continues
to be affected by factors such as market growth momentum, various opportunities
and challenges. However, during the forecast period from 2020 to 2025, the
global rockwell hardness sales market is expected to continue to be over the
average of the last five years. The growth rate will continue to increase
rapidly. It is expected that from today to the first month of next year, the
price of rockwell hardness will increase to a certain extent.
Due to changes in consumer demand,
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into account the current market macroeconomic parameters, value chain analysis,
channel partners, demand and supply, the cost of rockwell hardness will also be
affected to a certain extent. It is estimated that the cost of rockwell
hardness will increase slightly from today to the first month of next year. FV
Bearing is a leading supplier of precision bearings and bearings-related
products across a large spectrum of customers – primarily OEMs and major
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The high-quality rockwell hardness
FUWEI(LUOYANG) METALLURGY BEARING with the trade mark ( FV )
is a professional manufacturer of heavy industry bearings and have official
locations in Luoyang and Dalian. FV Bearing is a leading supplier of
precision bearings and bearings-related products across a large spectrum of
customers – primarily OEMs and major distributors. We are good at combining
customers\' actual applications and designing with the advantages of well-known
brand bearings, in order to providing high-quality solutions to customers.
We strictly control bearing quality from
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are committed to providing customers with the highest quality products and
Get the latest bearings price
list from FV bearings, you can send an email to email@example.com. Describe your needs and
we’ll reply within 48 hrs.