How to judge the replacement period of rotary table bearing?

Rotary Table Bearing plays an important role in construction machinery. If there is damage to the rotary table bearing, it will affect the normal operation of the machinery. Thus, the rotary table bearing should be replaced after a period of operation. There are two methods to judge the condition of the rotary table bearing: one is use Ferrography; the other is to use SPM/I-ID—1 Bearing working condition monitoring instrument.

When using HD-1 instrument, if the pointer is close to the danger zone from the warning area, we should take the lubrication measures. If the pointer is still not returned after measures, we can identify that the bearing has problem. It is safe and economical to use this kind of instrument to judge the bearing condition and then repair it to avoid the stop of machine.

Secondly, we can use simple monitoring tools to determine the replacement time of rotary table bearing. Operators can hold tools against the nearest machine part of bearing to judge the operation condition of rotary table bearing from the sound from the tools. The normal operation sound should be even, stable.

What are the storage conditions for cross roller bearings?

Cross roller bearing is a kind of precision bearing with special structure. It also requires special care during storage. The accuracy and quality of cross roller bearings can be maximized only in the proper environment. What are the storage conditions for cross roller bearings?

1. Cross roller bearings shall be stored in a clean, dry environment. Temperature and humidity shall be controlled within an acceptable range in handling and storage.

2. Some bearings have a certain shelf life. For example, bearing with dust-proof cover and oil seal, when stored for a period of time, the starting torque of the bearing will be larger than the new bearing. At the same time, the lubricating performance of lubricating grease will be destroyed after long storage, so the  bearing should be checked regularly for maintenance.

3.  To ensure the normal and reliable operation of the bearing, adequate lubrication must be applied to prevent direct metal contact between the rolling body, the raceway and the cage, resulting in wear and corrosion on the bearing surface. Therefore, in a variety of applications, the choice of appropriate lubricants and lubrication mode is extremely important.