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:
1.
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¢J 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¢J )
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.
dusts 
oil ring
Sleeve 
lubrication 
C-clip 
Ball 
spring 
copper pipe
rubber pad
plastic pad
Single-piece sealed structure
plastic clip
Copper bearing
