The anti-static floor contains conductive fibers, and the static electricity directly enters the earth by laying copper foil under the floor during construction. At present, there are two types of anti-static floors, one is an overhead anti-static floor, and the other is a PVC anti-static floor. The overhead anti-static floor is generally suitable for rooms that require a lot of wiring, such as the computer room, computer room, main room, and monitoring room. PVC anti-static floor, generally used in rooms with less wiring, such as electronic workshops, production workshops, places with anti-static requirements.
For large, medium and small computer rooms, in order to prevent the adverse effects of static electricity on the equipment room, you must consider installing an anti-static raised floor. Because it provides a lot of advantages:
1. Simplify installation and provide greater flexibility for future device configuration changes and expansions.
2. The equipment in the equipment room can be connected freely under the anti-static floor, which is convenient for laying and maintenance, and makes the machine room clean and beautiful.
3. It can protect various hardware cables, wires, data cables and sockets from damage.
4. The machine room can use the space under the floor as the static air pressure of the air conditioner to obtain satisfactory airflow organization. No matter where the computer equipment is installed, the air sent by the air conditioner can be obtained through the air outlet of the anti-static raised floor.
5. Conducive to the maintenance and maintenance of the bottom of the equipment.
6. Eliminate the danger of cable exposure to the human body.
7. The adjustability of the anti-static raised floor can be used to eliminate the unevenness of the ground and ensure the overall level of the ground of the machine room.
8. Allow static charge to leak to the ground and reflect electromagnetic radiation.
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Label: Practical analysis of anti-static floor
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NSK manufacture a full range of deep groove ball bearings. These bearings are the most common type and are used in a wide variety of applications.
Single-Row Deep Groove Ball Bearings
Pressed Steel Cages
Single-row deep groove ball bearings are the most common type of rolling bearings. Their use is very widespread.
In addition to open type bearings, these bearings often have steel shields or rubber seals installed on one or both sides and are prelubricated with grease. Also, snap rings are sometimes used on the periphery. As to cages, pressed steel ones are the most common.
For big deep groove ball bearings, machined brass cages are used.
Machined cages are also used for high speed applications.
Extra Small Ball Bearings and Miniature Ball Bearings
Miniature and instrument ball bearings can be divided into two basic types, deep groove and angular contact. The first (deep groove) can be further divided into the following five classes depending on their design details:
Standard type
Flanged outer ring
Extended inner ring
Expanded type in which one ring has a radial thickness that is larger than normal compared with the bearing width.
Thin section type in which both rings are extra thin in the radial direction. They can also be classified as: open, shielded, or sealed.
Maximum-Type Ball Bearings
Maximum-Type ball Bearings contain a larger number of balls than normal deep groove ball bearings because of filling slots in the inner and outer rings. Because of their filling slots, they are not suitable for applications with high axial loads. types of bearings have boundary dimensions equal to those of single-row deep groove ball bearings of Series 6200 and 6300 respectively. Besides the open type, ZZ type shielded bearings are also available. When using these bearings, it is important for the filling slot in the outer ring to be outside of the loaded zone as much as possible. Their cages are pressed steel.
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