The document discusses different types of deep groove ball bearings including single row, double row, and polymer ball bearings. It then provides guidance on properly installing deep groove ball bearings including ensuring cleanliness before installation, applying the appropriate amount of preload, using the correct grease, and installing with an even force. Finally, it discusses choosing the appropriate radial clearance for the deep groove ball bearing.

1. Deep groove ball bearings are used in a particularly wide variety of applications.
Consequently, they are available in many executions and sizes. The standard SKF range
comprises the following types:
– single row deep groove ball bearings
– SKF Energy Efficient deep groove ball bearings
– single row deep groove ball bearings with filling slots
– stainless steel single row deep groove ball bearings
– double row deep groove ball bearings
– single row hybrid deep groove ball bearings, see section "Engineering products - Hybrid
bearings"
– single row deep groove ball bearings for high temperatures, see section "Engineering
products - Bearings and bearing units for high temperatures"
– cam rollers, see section "Track runner bearings - Cam rollers"
– polymer ball bearings, see section "Engineering products - Polymer ball bearings"
Deep groove ball bearing is installed correctly is very important, following a few steps
outline the main points of the installation of deep groove ball bearings:
Preload requirements
For the required precision deep groove ball bearing drive, such as deep groove
ball bearing spindle, there are often preload requirements. These deep groove ball
bearing preload are reasonable, in order to achieve the nominal accuracy. Deep
groove ball bearing preload is generally factory-supplied parameters. The
traditional rule of thumb is often the assembly workers install. You can use
pre-measured amount of preload deformation method in some structure. Obtained
after deformation, the structure design in a tightening gasket, the gasket is just
pretension height difference before and after the change. In this way, tighten the
nut to ensure death, preload volume remains unchanged.
Clearance before installation
If there are burrs, dirt and other foreign matter go into the deep groove ball bearing
iron filings, deep groove ball bearings will generate noise and vibration when in
operation, or even damage the raceway and rolling elements. Therefore, when
install deep groove ball bearings, you must ensure that the mounting surface and
installation of the environment clean.
Deep groove ball bearings should be cleaned before the installation. Coated with
anti-rust oil, you must use gasoline or kerosene to clean carefully and then coated
with clean, high-quality, high-speed or high-temperature grease before installation.
Cleanliness of deep groove ball bearing will impact the service life and vibration
noise is very large.

2. How to choose the grease
How to choose the grease lubrication of deep groove ball bearing that influences
the operation and life importantly. Here to brief you the general principles to
choose grease. Generally low-viscosity base oil for low temperature, high-speed;
high viscosity for high temperature, high load. Thickener is also related to
lubrication, grease thickener of water determines the water resistance. In principle,
the grease cannot mix different brands, and even if the same kind of grease
thickener, also because of the different additives adversely affect each other.
Deep groove ball bearings and grease will cause too much room over oil mixing,
resulting in extremely high temperatures.
Deep groove ball bearing
installation
How to install and remove the hammer when installed directly face deep groove
ball bearing and non-force side, should be briquetting, sleeve, or other deep
groove ball bearing installation tool to make uniform force. If the mounting surface
coated with oil, the bearing will be installed more smoothly. Deep groove ball
bearings should be placed in mineral oil heated to 90 – 100 ℃ immediately after
installation. Difficulty in dismantling, it is recommended that you use the removal
tool to pull the inner ring, while carefully poured on the hot oil, deep groove ball
bearing inner ring heat will expand, making it easier to fall off.
How to choose the appropriate
clearance conditions
All of the deep groove ball bearings require minimum clearance work; you must
choose the appropriate clearance conditions. Rolling deep groove ball bearing
radial clearance group is divided into five groups -2, 0 group, 3 groups, 4, 5 groups,
followed by small to large clearance value, where 0 is the standard clearance
group. Basic radial clearance group for general operating conditions, temperature,
and commonly used conventional interference fit; at high temperature, high-speed,
low noise, low friction to work under special conditions such as deep groove ball
bearing; of precision spindle, machine tool spindles with deep groove ball
bearings, etc. should use a smaller radial clearance; for deep groove ball bearing
roller can maintain a small amount of clearance work. In addition, separate type of
deep groove ball bearings are indifferent clearance; Finally, deep groove ball
bearing clearance work after installed, install the front than the original clearance

3. is small, because the deep groove ball bearings to withstand a certain load
rotation, there are deep groove ball bearing and load produced with the elastic
deformation. Rolling deep groove ball bearing clearance and preload adjustment
process is to improve the precision deep groove ball bearing swivel and carrying
capacity, reduce vibration and noise transmission effective means. Assembly
work should clarify the concept of deep groove ball bearing assembly clear the
technical requirements, while also taking into account the deep groove ball
bearing temperature control and good lubrication, the right way to use this process
to ensure the ball rolling groove the quality of the bearing assembly.
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