Model inquiry X

Non standard size bearing code

The code of non-standard size bearing is composed of basic code, pre code and post code. The basic code consists of two parts: type code and dimension expression; The codes of front and rear bearings are the same as those of common bearings.

How to detect the tightness between rolling bearing and shaft shoulder?

Generally speaking, the rolling bearing with tight fit and interference fit must be close to the shaft shoulder. So how to test it? According to the understanding of bearing knowledge, let's share the detection method about the tightness between rolling bearing and shaft shoulder. I hope it will be helpful for our bearing installation.

What are the bearing cage materials

Bearing cage has a great influence on the service performance and life of rolling bearing, and the selection of its material is particularly important. The cage material should have the characteristics of high mechanical strength, good wear resistance, good impact load resistance and dimensional stability.

80% of the bearings are damaged early, which may be caused by incorrect bearing installation

Whether it's bearings or machining, your bearings often have problems. Today, the China bearing network (referred to as: China bearing network) to seriously and sincerely inform you: in fact, 80% of the bearing early failure because there is no correct installation. The correct installation of the bearing can not only increase the service life of the bearing, reduce the cost, but also greatly improve the production efficiency. Therefore, it is urgent to learn the correct bearing installation knowledge.

Sliding bearing -- Characteristics and application of various sliding bearings

​Characteristics and application of various sliding bearings

Ferrule and rolling element materials

Rings and rolling elements are usually made of high carbon chromium bearing steel. Ccr15 is used for most bearings, and ccrl5simn with good hardenability is used for bearing rings with large cross section and rolling elements with large diameter. The high carbon chromium bearing steel is an integral hardening steel, which can be hardened in both the surface and the center. It is the best material for rolling bearings.

How to distinguish bearing precision? Bearing tolerance class

How to distinguish bearing precision? Bearing tolerance class

Adjustment measures for problems after bearing installation

Do not directly hammer the bearing face and the non stress surface during installation. The bearing shall be evenly stressed by pressing block, sleeve or other installation tools. Do not transfer power through rolling body for installation. If the mounting surface is lubricated, the installation will be smoother. If the interference is large, the bearing should be heated to 80-90 ℃ in mineral oil and installed as soon as possible. The oil temperature shall be strictly controlled to not exceed 100 ℃, so as to prevent the hardness reduction of tempering effect and the size recovery of influence. When it is difficult to dismantle, it is recommended that you use the disassembly tool to pull outward and carefully spray hot oil on the inner ring, which will expand the inner ring of the bearing, which will easily fall off.

Main differences and operation types of annealing and normalizing in bearing production process

Annealing, also known as braising, code named th, is to heat the steel parts to AC1 or AC3 above (30 ~ 50 ℃), keep them for a period of time, and then slowly cool them (generally furnace cooling).

Selection and matching of fixed end bearing and floating end bearing of motor

Fixed end bearings use radial bearings that can withstand combined (radial and axial) loads. These bearings include: deep groove ball bearing, double row or matched single row angular contact ball bearing, self-adjusting ball bearing, spherical roller bearing, matched tapered roller bearing, NUP type cylindrical roller bearing or NJ type cylindrical roller bearing with HJ angle ring.