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.

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

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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