Product Description Product Parameters Product
applicationFAQ Q: Where to find Other bearings
?Discover the Homepage-----> ProductsQ: HOW TO CHOOSE A
BEARING?To properly choose a ball bearing, the important thing
is to take into account several parameters: 1.
Its applicationBearings are everywhere and therefore their
applications are varied:- Agriculture (agricultural machinery,
tools, ...)- Domestic (turntable, fishing rod, rollers, ...)-
Industry (assembly lines, industrial machinery, ...)- Machines
(tools, robots, ...)- Vehicles (cars, motorcycles, bicycles,
trailers, ...)- Office (fans, ….) The application for
which the bearing will be used will therefore be decisive in the
choice of the part. 2. The speed of rotationThe
ball bearing supports high speeds and reduced loads, while
the tapered roller bearing supports higher loads but
lower speeds. The speed limits of a bearing are determined by
the operating temperature.The speed limit can be defined as the
highest rotational speed a ride can achieve depending on use,
without compromising performance and duration.The speed limit of
bearings depends on several factors, such as: bearing type, load
size, tolerance class, cage configuration, work set, lubricant,
lubrication and cooling conditions, etc.3. The supported load2
types of loads are supported by bearings:- Basic Dynamic LoadThis
is the maximum permissible load of the bearing capable of providing
a nominal service life equal to 1 million revolutions.It is
necessary to calculate the service time necessary to show signs of
fatigue on the materials, and on this basis to determine the
theoretical duration.- Static chargeThis is the load that applies
to the stationary bearing. It corresponds to a contact stress
calculated between the rolling body in the most loaded contact and
the raceway.The loads are of simple type and radial, for the radial
bearings, of simple type and axial, forthe abutments.4 Life of
bearingsBearing life is defined as the number of revolutions or
hours of operation, which the bearing is able to withstand before
signs of fatigue appear on one of the rings, on the raceway or on
the rolling elements.5. Nominal fatigue lifeThe rated fatigue life
of an identical bearing or batch of bearings operating under the
same service conditions shall be equivalent to at least a 90 degree
of reliability.The average life of a bearing lot is much greater
than its nominal duration.The nominal fatigue life is expressed as
L10 (Million revolutions) or L10h (service hour).6. Bearing
toleranceBearing tolerances have been standardized both nationally
and internationally in accordance with ISO standards.Bearings are
generally manufactured in the P0 tolerance class.Other parameters
can be studied to choose the bearing best adapted to your needs:-
The conditions of use and the constraints- The requirements of
duration of the machine- The mimics of congestion of the bearing-
Negative factors (vibration, shock, heat, dirt, acceptable sound
level, etc.)The choice of bearing is therefore mainly dictated by
the dimension and load characteristics to which the bearing is
subjected.In order to supply even more stable quality to our vast
customers, we established a factory in Cixi city, Zhejiang
province, China, near Ningbo and Shanghai port, which has
recognized by special ISO. The various bearings we produce there
have been inspected and confirmed by SGS to be RoHS
compliant. Besides we has a genuine concern about our
customers' needs and desires, we believe that by establishing a
mutually beneficial relationship with our customers we can both
continue to grow and prosper, we wish and hope to always grant you
satisfaction.Q: HOW TO MEASURE A BEARING?You have to change your
ball bearing but do not know the model?There is no
written reference to it and you are lost?You do not have a sliding
foot?The measurement of the bearing will allow you to find this
bearing or an equivalent.GNYARBearing helps you to take accurate
measurement.1st step: the inside diameter of the bearing (called
the bore) A / Put your bearing on the grid as shown in the
diagram, taking care to justify the inside edge. B / Mark the
inner contour. C / For ease of reading, do not hesitate to
draw lines to the axes and then take the measure. And do not
hesitate to contact our GNYARbearings team who will be happy to
inform you by phone or email.24hours CET : (86)
15381928152 Do you prefer that we remind you ?Immediate and
free call/email back2nd step: the outside diameter of the
bearing A / Put your bearing on the grid as shown in the
diagram. B / Mark the outline of the outer ring. For more
convenience, use a pencil with a fine point. C / For ease of
reading, do not hesitate to draw lines to the axes and then take
the measurement. 3rd step: the thickness of the
bearing A / In the same way as for the outer diameter and the
bore, place your bearing on the edge on the grid as shown in the
diagram.B / Draw the outer contour. C / For ease of reading
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