Temperature cannot exceed 30°C
Hot and cold will cause damage to the floor and wood furniture. Experts suggest that sudden indoor warming should be avoided and attention should be given to a gradual warming. If the temperature is raised too quickly, the floor may crack and twist due to expansion. Therefore, if geothermal heating is used, the surface temperature should not exceed 30°C. At this time, the room temperature is below the body's most suitable ambient temperature of 22°C, and the service life of the floor can also be guaranteed.
Humidity is controlled at about 50%
Although the winter sun is not very strong, long periods of sunshine combined with an already dry climate can cause cracks and partial fading of wood. At the same time, furniture should not be placed in a very humid place, because the wood is easy to expand in the event of wetness, and deformation, rot, etc. may occur after a long time.
The climate in winter is relatively dry. Minimize the window opening time and increase the humidity indoors. It is not only good for people to live in, but also helpful for the maintenance of the floor. Many people may think that in the winter, when the outside air comes in, the indoor temperature drops, and the floor separation phenomenon naturally weakens. In this regard, experts say that the real reason for floor separation from the seams is humidity, not temperature.
In addition, the higher the air temperature, the more saturated the water, which means that the indoor humidity in winter is higher than the outdoor. At this time, the outside cold air will be exchanged in, which will only make the room dry. Equipped with an air humidifier is very straightforward and effective. Experts revealed that the humidity in the room should be controlled at about 50%.
Nature Flooring Del Floor Furniture Humidifier Room Window Wood Furniture
Deep groove ball bearings are the most common type of rolling bearings.
The basic type of deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls and a set of retaining frames. There are two types of deep groove ball bearings: single row and double row, and the deep groove ball structure is also divided into two structures: sealed and open, open means that the bearing does not have a sealed structure, and the sealed deep groove ball is divided into dustproof seal and oil-proof seal. The dust seal cover is made of steel stamping, which simply prevents dust from entering the bearing raceway. The oil-proof type is a contact oil seal, which can effectively prevent the grease in the bearing from escaping.
The type code for single row deep groove ball bearings is 6, and the code for double row deep groove ball bearings is 4. Its structure is simple, easy to use, is the most common production, the most widely used type of bearing.
How it works
Deep groove ball bearings are mainly subjected to radial loads, but can also bear both radial loads and axial loads. When it is only subjected to radial loads, the contact angle is zero. When the deep groove ball bearing has a large radial clearance, it has the performance of angular contact bearing, can bear a large axial load, the friction coefficient of the deep groove ball bearing is very small, and the limit speed is also very high.
Bearing characteristics
Deep groove ball bearings are the most commonly used rolling bearings. Its structure is simple and easy to use. It is mainly used to bear radial load, but when the radial clearance of the bearing is increased, it has the performance of a certain angular contact ball bearing, and can bear the combined load of radial and axial directions. When the speed is high and thrust ball bearings are not suitable, they can also be used to bear pure axial loads. Compared with other types of bearings with the same specifications and dimensions as deep groove ball bearings, this type of bearing has a small friction coefficient and a high ultimate speed. However, it is not resistant to impact and is not suitable for bearing heavy loads. [2]
When the deep groove ball bearing is mounted on the shaft, the axial displacement of the shaft or housing can be limited within the axial clearance range of the bearing, so that it can be positioned axially in both directions. In addition, this kind of bearing also has a certain self-aligning ability, when it is inclined to 2′~10′ relative to the bore of the shell, it can still work normally, but it has a certain impact on the bearing life.
Structure and classification
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Bearing construction
Deep groove ball bearings have a simple structure and are easy to achieve high manufacturing accuracy compared with other types, so they are convenient for mass production in series, and the manufacturing cost is also low, and they are extremely commonly used. In addition to the basic type, there are various variant structures of deep groove ball bearings, such as: deep groove ball bearings with dust covers, deep groove ball bearings with rubber seals, deep groove ball bearings with stop grooves, deep groove ball bearings with large load capacity with ball notch, and double row deep groove ball bearings
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Hebei Fangqiang bearing manufacturing Co., LTD , https://www.fangqiangbearing.com