Use steel ball bearings - deep groove ball bearings

Deep groove ball bearings are the most common type of rolling bearings. The basic deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls and a set of cages. The types of deep groove ball bearings are single row and double row. The single row deep groove ball bearing type code is 6, and the double row deep groove ball bearing code is 4. The utility model has the advantages of simple structure and convenient use, and is the most common and widely used type of bearing.

Deep groove ball bearings are mainly subjected to radial loads and can also withstand radial loads and axial loads. When it is only subjected to radial loads, the contact angle is zero. When the deep groove ball bearing has a large radial clearance, it has the performance of an angular contact bearing and can withstand a large axial load. The deep groove ball bearing has a small friction coefficient and a high limit speed. Especially in high-speed running conditions with large axial load, deep groove ball bearings are more advantageous than thrust ball bearings.

The deep groove ball bearing has a simple structure and is easy to achieve high manufacturing precision compared with other types, so it is easy to be mass-produced in series, and the manufacturing cost is also low, and the use is extremely common. In addition to the basic type, deep groove ball bearings also have various modified structures, such as: deep groove ball bearings with dust cover, deep groove ball bearings with rubber seals, deep groove ball bearings with snap grooves, and Deep groove ball bearings with large load capacity of ball notches, double row deep groove ball bearings.

Single row deep groove ball bearing

Single row deep groove ball bearing with dust cover

Single row deep groove ball bearing with dust cover and sealing ring

Single row deep groove ball bearing with stop groove and stop ring on outer ring

Single row deep groove ball bearing

Single row deep groove ball bearing with dust cover

Single row deep groove ball bearing with sealing ring

Single row deep groove ball bearing with stop groove and stop ring on outer ring
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The main reasons for premature bearing damage are as follows:

First, improper installation

1. The brute force is used when the bearing is installed. The hammer directly hits the SKF bearing to damage the bearing; it is the main cause of deformation.

2, the installation is not in place, the installation is biased or not installed to the bearing position, resulting in too small bearing clearance. The inner and outer rings are not at the same center of rotation, causing disagreement.

Recommendation: Select an appropriate or professional bearing installation tool, and use a special instrument to detect it after installation.

Second, fatigue

Fatigue damage is a common way of damage to SKF bearings. Common causes of fatigue damage may be: long-term overload operation of bearings; failure to repair in time; improper maintenance; equipment aging.

Recommendation: It is suitable to avoid the bearing being in a high working state for a long time, and can take intermittent work as needed; repair and replace the old SKF bearing.

Third, pollution

Contamination can also lead to premature bearing damage, which means that dust, metal chips, etc. enter the bearing. The main reasons include: opening the bearing packaging too early before use, causing pollution; the working environment is not clean during installation, causing pollution; the working environment of the bearing is not clean, and the working medium is polluted.

Recommendation: Use the bearings correctly, pay attention to the proper opening time of the package; keep the working environment clean.

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