EL-bearing

EVERCOOL's Research and Development team has created the Air sealed shaft fan. It has ready made an impact to the market. This kind of shaft structure is very cost efficient (low material cost and a longer life span than the traditional shaft.) The features are as follow:

Design Principle:

The sealed bearing is composed of five components including the oil cap, copper bearing, plastic washer, mylar piece, and o-ring; wherein the components can effectively prevent the oil from leaking through the top part of the bearing. At the bottom of the fan, the sealed single-piece mechanism can completely seal the oil within the fan structure without leakage. The copper bearing used for the fan unit can reduce the amount of oil spreading, effectively retaining the proper amount of oil in the fan for a long period of time to increase the lifespan and reduce the noise. However, EL bearings are achieved by injecting a sufficient amount of oil into the copper bearing<and fulfill oil space>, and then sealing off the top and bottom parts of the bearing to prevent the oil from leaking, thereby improving the lifespan of the fan unit. As the bearing is sealed, dust can be effectively stopped at the top or bottom of the bearing to prevent malfunction of the fan unit due to dust accumulation.

Design Concept:

EL: Completely sealed bearing structure →No mechanical contact during usable lifespan of fan →No oil loss →Oil quality not degraded

Comparison between EL bearing and sleeve bearing:

	Sleeve bearing has a simple structure with only an o-ring at the tip of the fan to prevent oil from spreading.
	EL bearing has the o-ring at the tip of the fan and the single-piece fan base in addition to the seal mechanism (rubber washer, o-ring, mylar piece, copper cap) to effectively reduce the risk of oil leak and improve the fan lifespan.

ELA
Feature:
1. Long lifespan {>50,000 hrs@ 40℃ 90%}
2. High reliability, effective at preventing dust from entering
3.No oil pollution
4.Low friction
5. High temperature resistance ( continuous 7-day testing at 90℃ )
6. High efficiency and low cost

CA
Feature:
1. Middle range pricing
2. Average life span.
3. Easy accesses for dusts, dusts will combine with the oil.
4. Easy accesses for oil to get into the bearing

BA
Feature:
1. Expensive
2. Long life span
3. Easy access for dusts, dusts will combine with the oil.

SA
Feature:
1. Low price.
2. Easy access for dusts, dusts will combine with the oil.
3. Short life span.
4. Friction between parts easy for parts to wear off.

Remark:

dusts	oil ring	copper cap	lubrication
C-clip	Ball	spring	copper pipe
rubber pad	plastic pad	Single-piece sealed structure	plastic clip
Copper bearing

30x30x10	40x40x10	40x40x20	45x45x10
50x50x10	50x50x15	50x50x20	60x60x15
60x60x20	60x60x25	70x70x15	70x70x25
80x80x15	80x80x20	80x80x25	80x80x35
92x92x25	92x92x32	120x120x25	120x120x38
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