It
is generally thought that the roller bearing is made up of six: outer
ring (seat), inner ring (shaft), tumbling, cage, seal and lubrication. Rolling
the bearing device, is divided into three processes: the first step is
to ring, outer ring and tumbling to match, to ensure that they thrust a
certain cooperation between the gasket, such as to ensure that the
bearing should have a certain The
second step is to assemble the cage, or riveting, or make a plastic
deformation of the cage in order to split the rolling body in the
bearing ring, so that it is Rotating
sensitive and not scattered, in order to facilitate the rolling
bearings can be used in a variety of machinery and equipment; the third
step is to grease and install the sealing device. Of course, similar to the situation of non-cage bearings, etc., the second and third steps can not.
The
radial clearance and nominal width of the bearing are the main
parameters of the complete bearing. The main factors that affect the
radial clearance or nominal width of the rolling bearing are the
diameter error of the inner and outer ring raceway and the diameter of
the tumbling body. In
China, the radial clearance value of the rolling bearing and the fair
value of the nominal width are now somewhat standardized and the rules
are in the corresponding national codes and industry specifications. To
small and medium-sized deep groove ball bearings, for example, the
diameter of aluminum-tin alloy bearings to the clearance of the
commercial scale of 0.01 ~ 0.02mm, in China now roll bearing into the
production of the situation, the bearing parts of the appearance of
finishing the economic precision The size of the error in the 0.01 ~ 0.03mm. Such
a production error resolution of the rolling bearing device can not be
as usual as the mechanical device as a random device, it is necessary to
ingenuity, this rolling bearing device used in the matching method,
which also shows the device hydraulic oil-free bushings and level And the level of grinding is closely related. The
so-called matching, that is, rolling bearing selection process, that
is, the inner and outer rings of the raceway diameter scale control in
its official scale, and then in accordance with the necessary scale
difference for a number of groups, the use of tumbling diameter scale
group Service,
the corresponding inner and outer rings and tumbling each other choose
to cooperate to arrive at the rules of the clearance or nominal width of
the service value request. The diameter of the roll group is poorly matched according to the
rules of the relevant rules, and it is now sorted in the production
workshop by fire sorting machine.
After the clearance value of the bearing is requested by the matching fit rule, the bearing can be carried out. Usually
the process of bearing the device, that is, the use of the cage will be
tipped to be restricted, so that the tumbler can not only sensitive to
roll, and not too hot will gather or scattered, so that the bearing into
a component. Cage
equipment according to the type of different, usually need to use the
appropriate things or mold, and by virtue of presses, electric riveting
machine, pneumatic press, welding machines and other equipment,
riveting, bending claws, embossing, Welding and other operations.
In the process of all the equipment in the bearing or device, but also with a lot of inspection process to be carried out. In the meantime, some of the bearing assembly process quality
inspection, and some of the bearing product quality indicators of the
inspection, these checks are very necessary and severe.
Through the inspection of qualified products after the bearings, to be able to oil, packaging factory. For the product bearing oil, packaging process, you can tailor, have their own strengths. For
example, in a highly mechanized plant or production line, oiling,
loading process is usually automatic, its quality is better, the
production of high power. In
the production conditions usually in the small batch of equipment shop,
has also been completed mechanized cleaning and oiling process. But in the poor conditions of small batch production plants and
some small factories, oil, packaging is still in the period of manual
labor.
By checking the qualified inner ring, outer ring, tumbler and
cage, into the bearing device workshop, no sealed bearing device
production of the main process is as follows:
Parts
demagnetization, cleaning - inner and outer ring raceway scale and
tumbling diameter scale for sorting - set - assembled cage - product
inspection - demagnetization, cleaning - oiling, packaging, into the
product library.
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