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Moving bearings codes describe the inner size, diameter series, width series, and also sort of the bearings, which are typically approximately five figures. The code is composed of basic code, article code, and also front code.
The Eccentric Bearings
First, as complies with:
1) The internal diameter of the bearings is suggested by the first and second digits of the rolling bearings code. For bearings with a usual inner diameter d = 20 ~ 480mm, the inner side of the bearings is generally a several of 5. These two digits represent the quotient of the inner diameter of the bearings separated by 5, such as 04 for d = 20mm, 12 for d = 60mm, and so on. For bearings with internal sizes of 10mm, 12mm, 15mm as well as 17mm, the internal diameter codes are 00, 01, 02, and also 03 in order. For bearings with an inner diameter of less than 10mm and also more than 500mm, the approach of expressing the internal size is otherwise defined, see GB/ T272-93.

2) The diameter series of bearings (that is, the collection of modifications in outer diameter and also the width of bearings with the same framework as well as the same inner diameter) is suggested by the 3rd number from the right of the basic code. For example, for radial bearings and radial drive bearings, 0 and also 1 represent additional light series; 2 represents light series; 3 represents medium series; 4 stands for heavy series; 7 stands for ultra additional light;

Thrust bearings size and also diameter series are somewhat various from radial bearings. Among them, 0means incredibly light series, 1 indicates extra light collection, two ways light series, 3 suggests tool collection, four means heavy set, and also five ways additional hefty collection.

3) The width collection of the bearings (particularly, the series of adjustments in bearings width in which the framework, inner size and also diameter collection are the same) is suggested by the fourth number from the right of the basic code. When the size series of the diameter series displayed in Figure 13-4 is the 0 series (normal series), the width collection code O is not marked in the code for the majority of bearings, but also for spherical roller bearings and also tapered roller bearings, the width collection Code 0 shall be noted. The size series, as well as size series, are jointly referred to as the size collection.

4) The moving bearings codes are suggested by the very first digit from the left of the fundamental code.

5) Rolling bearings codes:

0 means dual row angular call sphere bearings

1 indicates self-aligning round bearings

2 indicates spherical roller bearings and also thrust spherical roller bearings

3 indicates tapered roller bearings

4 implies dual row deep groove sphere bearings

Five indicates drive round bearings

6 suggests deep groove sphere bearings

Seven suggests angular get in touch with bearings

Eight means thrust round roller bearings

N indicates round roller bearings and dual row cylindrical roller bearings NN.

U means outer spherical bearings.

QJ suggests four-point contact round bearings.

Blog postcode

Moving bearings codes in the behind are composed of letters and also numbers to show the bearings structure, resistances and special requirements of products, and so on. There are a lot of postal codes. Here are some generally utilized codes.

1) The interior structure code shows various internal frameworks of the very same kind of bearings, which is shown by the letter followed by the standard code As an example, angular call ball bearings with contact angles of 15 °, 25 °, as well as 40 ° usage C, A/C, and also B to suggest the differences in the interior structure.

2) bearings tolerance qualities are divided right into two qualities, 4 qualities, 5 qualities, 6 qualities, 6X grades, and 0 grades. There are a total amount of 6 qualities, in order from high to reduced, as well as their codes are/ PZ,/ P4,/ PS,/ P6,/ P6X, and/ P0. Among resistance grades, grade 6X is only appropriate to tapered roller bearings; quality 0 is ordinary grade and is not marked in the bearings code.

3) The generally secondhand bearings radial clearance series are split right into 1 group, 2 groups, 0 teams, 3 teams, 4 groups, and five teams, an overall of 6 groups, the radial clearance in order from little to big. The clearance of group o is a typical clearance group, which is not noted in the bearings code. The staying clearance groups are represented by/ C1,/ C2,/ C3,/ C4,/ C5 in the bearings code.

Front code.

Rolling bearings codes in the front is used to show the sub-components of the bearings, which are stood for by letters. As an example, L is the separable ferrule of the separable bearings; K is the rolling element as well as cage assembly of the bearings.

There are lots of sorts of rolling bearings utilized in practice, and also the corresponding bearings codes are also more complex. The code presented above is one of the most standard as well as a typically used component of the bearings code. When you recognize with this code, you can recognize and also inspect the generally pre-owned bearings.