.png)
Self-aligning ball bearing
- Category: Self-aligning ball bearing
- Description:It is suitable for heavy load and impact load, precision instrument, low noise motor, automobile, motorcycle, meta...
- Email:admin@jngybearing.com
- TEL:+86 15165026537
- Company:Ji'nan Guang Yue Pml Precision Mechanism Ltd Of China
Details
Contact Us
It is suitable for heavy load and impact load, precision instrument, low noise motor, automobile, motorcycle, metallurgy, rolling mill, mine, oil, paper, cement, sugar and other industries and general machinery and so on.
As bearing materials, chromium steel, chromium molybdenum steel, nickel chromium molybdenum steel and carbon hardening are used to make the steel have a hardened layer from the surface to the proper depth. The carbonized bearing with proper hardening depth, fine microstructure, suitable hardness surface and the hardness of the heart has excellent impact resistance than the ball bearing ball bearing with bearing steel, and the chemical composition of the steel is used for the general carbonizing bearing.
Vacuum degassing has been carried out, so the materials used are high cleanliness, low oxygen content and good quality. Proper heat treatment is adopted to improve rolling fatigue life of the ball bearing.
Besides the above steel, high speed steel with good heat resistance and stainless steel with good corrosion resistance is also used for special purposes.
Cage material: material used for stamping cage, using low carbon steel. Brass plates and stainless steel plates are also used for different purposes. The material for cutting cage is made of high strength brass and carbon steel, and synthetic resin is also used.
The vibration system composed of the steel degree, flexibility, quality, damping and so on, which is determined by the design parameters of the KOYO bearing structure, will produce the vibration adapted to its mechanics under the operating conditions.
The smaller the vibration caused by deviation in manufacturing process, the smaller the vibration. The roundness, ripple and surface roughness of the surface of the steel ball are the most influential factors in the vibration of the KOYO bearing parts, followed by the shape error and the surface roughness of the inner ring and the outer ring groove, and the cleaning degree of the bearing and the quality of the lubricant.
Operating conditions such as installation conditions, speed, axial direction of load, magnitude and so on.
Bearing fatigue failure is a failure surface form, which is mainly manifested by the initiation, expansion and fracture process of fatigue cracks, in which the metal of the long-term effect of the load failure is produced alternately. The cracks are in two aspects:
First, on the surface, this is the effect of the external load on the KOYO bearing during the rolling contact, due to the periodic changes in the plastic deformation of the working surface and the contact stress of the strain hardening surface, and finally the formation of the surface cracks between the small cracks from the developing inner surface and the surface of the two, due to the working sheet. The surface into the lubricant, open strength, crack down on the wall, forcing the crack forward.
Second: from the surface, under repeated pressure, the surface contact, initially on the surface of the surface of a certain depth of crack cracks, and along the surface direction of the angle, to a certain depth, from the surface of the contact surface, and beyond the surface, and eventually form a peeling, leaving a horse pit.
The rings and rollers of the rolling bearing are subjected to repeated contact with high contact pressure and one side with rolling contact. The retainer has sliding contact with one side of the ring and rolling body or one side, and one side bears tension and compression force. Therefore, the material, performance and main requirements of bearing rings, rolling elements and cage are as follows.
The required properties of rings and rolling materials are high rolling fatigue strength, high hardness and high friction resistance.
The performance requirements of cage materials are good dimensional stability and high mechanical strength. Besides, the machinability is good. According to different uses, it also requires its impact resistance, heat resistance and corrosion resistance.
