Bearings for rotary motion are designed as rolling bearings or
plain bearings. A distinction is drawn as to whether the forces
occurring between the parts movable relative to each other are
transmitted by rolling or sliding elements.
Cylindrical roller bearings with cage
Single row cylindrical roller bearings with cage are units
comprising solid inner and outer rings together with cylindrical
roller and cage assemblies. The outer rings have rigid ribs on both
sides or are without ribs, the inner rings have one or two rigid
ribs or are designed without ribs. The cage prevents the
cylindrical rollers coming into contact with each other during
The cylindrical roller bearings are very rigid, can support high
radial loads and, due to the cage, are suitable for higher speeds
than the full complement designs. Bearings with suffix E have a
larger roller set and are thus designed for extremely high load
The bearings can be taken apart and can therefore be fitted and
dismantled more easily. Both bearing rings can therefore have an
Single row cylindrical roller bearings with cage are available as
non-locating, semi-locating and locating bearings.
Many sizes are supplied in X-life design.
Bearings of X-life quality have a lower roughness Ra and superior
geometrical accuracy of the raceways than comparable designs that
are not X-life. As a result, the load carrying capacity and life of
these bearings is higher while maintaining the same dimensions. In
certain applications, a smaller design of bearing arrangement can
therefore be used if necessary.
These bearings are mostly found in middle-sized and large-sized
motors, electricity generators, internal combustion engines, gas
turbines, machine tool spindles, deceleration devices, unloading
and lifting machines and other industrial machines.
Ring Material Chrome Steel ,Carbon steel,Stainless steel
Nylon ,steel , brass
Zv1,Zv2 and Zv3
Number of Row
Home appliances, low noise and high speed electric motors,
automotive components, pumps, machinery.
Place of Origin
(1) Prompt Delivery
(3) Good Service Offered
(4) Buyer Label Offered
T/T or L/C
1. Fast delivery
2. Competitive price
3. High quality and long life
Every roller bearing design has characteristic features that make
it especially suitable for specific bearing applications. It is not
possible to draw up generally valid rules for the selection of the
bearing type as several factors usually have to be considered and
weighed up. In addition to load and speed, attention must also
normally be paid to influences such as temperature, lubrication,
vibrations, fitting, maintenance etc. In many cases, at least one
of the main dimensions of the bearing – usually the bore diameter –
is already defined by the design of the adjacent construction.
Rolling bearings for predominantly radial loads are described as
radial bearings. Most radial bearings can support combined loads,
e.g. deep groove ball bearings, angular contact ball bearings,
tapered roller bearings or spherical roller bearings. Cylindrical
roller bearings N, NU, most needle roller bearings, drawn cup
needle roller bearings and needle roller and cage assemblies can
only support radial loads.
Rolling bearings for predominantly axial loads are described as
axial bearings. Axial spherical roller bearings and single
direction axial angular contact ball bearings can support combined
axial and radial loads. The other types of axial bearings are only
suitable for axial loads.
If there is little radial space available, bearings with a low
cross-sectional height must be selected, such as needle roller and
cage assemblies; needle roller bearings with or without an inner
ring, deep groove ball bearings and spherical roller bearings of
If there is little axial space available, bearings series including
single row cylindrical roller bearings, deep groove ball bearings
or angular contact ball bearings are suitable for radial and
combined loads. For axial loads, axial needle roller and cage
assemblies, axial needle roller bearings or axial deep groove ball
bearings are used.
A further feature is how the bearings guide a shaft. There are
bearings that allow axial displacements, bearings that guide a
shaft in one or both axial directions and bearings that allow
angular adjustment and thus tolerate misalignment of the adjacent
The bearing size is determined primarily by the magnitude and type
of load – dynamic or static – the bearing load carrying capacity
and the requirements for operating life and operational reliability
of the bearing arrangement. Rotating bearings are subjected to
dynamic stresses. Bearings are subjected to static stresses if
there is only very slow relative motion between the bearing rings,
if swivel motion occurs or if loads occur in a stationary
condition. Where external dimensions are identical, roller bearings
can in general be subjected to higher loads than ball bearings. As
a result, ball bearings are usually used for small and moderate
loads, whilst roller bearings are frequently used for higher loads
and larger shaft diameters.