Installation and adjustment with high speed bearings

When the co-ordination and high speed bearings clearance due to the rapid bearing both high precision bearings according to requirements, but also according to the requirements of high temperature bearings, so consider the mating and clearance, to take into account the following points:
(1) changes in the size and hardness changes in temperature rose at a high temperature;
(2) High speed centrifugal force caused by the force system changes and shape changes.
In short, at high speed, high temperature conditions, with and clearance from the choice you want to strive to maintain the accuracy and performance of the bearing, which is difficult. In order to ensure the installation of the rear bearing raceway deformation is small, angular contact ball bearing interference fit the amount of interference can not achieve much, but heat and centrifugal force at high speed under high temperature expansion, surface or offset with normal pressure. Or the mating surface relaxation, and therefore the amount of
interference must be carefully applied in consideration of the above two factors premise In computing, at normal temperature and normal speed under effective amount of interference for high-speed bearings may be invalid.

How to prolong the life of the bearing flange

Whether buyers or sellers are concerned, the length of the bearing life. Such as: flanged bearing mainly take radial load, but also to support radial and axial load. But for the life of the Flange Slewing Bearing are not very understanding, the following three steps teach you extend bearing life:
(1) In order to make a gap in the radial direction between the bearing retainer and the bearing ring is set larger than the eccentric amount of the internal structure has been improved;
(2) the use of FEM analysis, by the shape and thickness were optimized to improve the strength of the holder;
(3) In order to prevent reduce surface damage caused by lubricating oil in the bearing ring in the design of the guide groove.

Workaround miniature bearings when overheating

Because of different reasons miniature bearings fever, so to solve in different ways, the following are workarounds for miniature bearings overheating when:
1, filling fat law, so-called fat method is to fill the bearing surface regularly to fill the right amount of grease, is one of the most commonly used grease lubrication.
2, oil cup oil cup method is to set the cap-type oil cup or mug oily pressure in the bearing housing, periodically rotating the cap or oil gun grease injection. This is also a common grease lubrication.
3, the pressure for fat method, pressure method is to rely on fat for the grease pump for grease. You should choose good mobility grease.
4, centralized method for fat, centralized method for grease through grease pump, simultaneously to various deep groove ball bearings and other parts for fat. Similarly, when the flow of grease should be used in offerings and good resistance to oxidation and corrosion resistance of the grease,It is also a method for grease pressure.

Miniature Bearing Failure

About the failure of miniature ball bearings in the 40% by dust, dirt, debris and pollution caused by corrosion. Pollution is usually caused by improper use and poor use of the environment, it can also cause problems torque and noise. Miniature Bearing failures and pollution generated by the ring is preventable, and by simple visual observation can determine the cause of this type of failure. As long as a reasonable use and install, miniature bearings are easy to avoid the erosion. Erosion is characterized in miniature bearing ring raceway indentations left by the impact load or incorrect installation generated. Erosion usually occurs when the load exceeds the material yield limit. If not properly installed so that a load across the miniature bearing ring will produce erosion. Indentation will be miniature bearing ring on noise, vibration and additional torque.

Liner Motion Bearings Operating Temperature

Joint bearing allowable operating temperature is mainly determined by the pairing of the sliding surface between the bearing material, especially plastic material self-lubricating slewing rings sliding surfaces bearing joints, its carrying capacity at high temperatures have decreased. When the sliding surface materials such as lubricating plain bearings pairing of steel / steel, the allowable operating temperature depends on the allowable operating temperature lubricant. robotics bearing But for all lubricated and self-lubricating bearing joints is concerned, may, within -30 ℃ ~ + 80 ℃ temperature range of use, and maintain the correct affordability.

rolling mill bearing

rolling mill bearing is generally only used to bear radial load, compared with the same size deep groove ball bearings have a greater radial load capacity, speed close to the deep groove ball bearing, but with such bearing with the shaft ﹑ shell higher body bore machining requirements, allowing the inner and outer ring axis inclination of the axis is very small (2-4 °), two-axis tilt as beyond the limits of the roller and the ring raceway contact situation will deteriorate seriously affected load bearing capacity, reduced bearing life. Therefore, these bearings as you need to install the axial load acting host components, only the simultaneous use of other types of bearings to bear axial loads under the premise before use.

Bearing Encyclopedia

Bearings, mechanical fixed parts. While other parts to each other when the shaft relative motion, used to maintain the axis of the central location and control of parts of the movement, it is called bearings. Ball bearing means is a rolling body is a ball rolling bearing, miniature ball bearings for the nominal diameter size range of rolling bearing 26mm or less. General said bearing more for rolling bearings. Rolling is the sliding friction shaft and the shaft will run between the seat becomes rolling friction, thereby reducing the friction loss of a precision mechanical components. Rolling generally consists of an outer ring, inner ring, rolling elements and a cage. Rolling easy maintenance, reliable, good starting performance, at moderate speed higher carrying capacity. Comparison with the sliding bearing, the radial rolling bearing large size, poor damping capacity, high speed, low life, sound larger.