FBK04A05L1SA PANASONIC [Panasonic Semiconductor], FBK04A05L1SA Datasheet - Page 3

• Manufacturer Part Number: FBK04A05L1SA
• Description: Locked rotor protection circuits Automatically restarts in a few seconds Reverse voltage protection
• Manufacturer: PANASONIC [Panasonic Semiconductor]

High Reliability with HWB (Hydro Wave Bearing)
Radial Direction
Axial Direction
shaft
thrust plate
bearing
(b) HWB
Figure 1: Pressure distribution in each load direction.
washer
HWB
thrust plate
stop ring
shaft
Figure 1: Construction of HWB
Panaflo’ s unique hydrowave bearing (HWB) addresses the traditional weakness of sleeve bearings…axial fric-
tion. By utilizing our unique HWB system, the thrust plate “floats” on a circulating film of oil, which greatly
reduces the axial friction and the bearing’ s deterioration. The HWB pattern on the bearing virtually eliminates
thrust plate contact which is depicted above.
As the shaft rotates it acts as a pump constantly circulating the oil in the radial, as well as the axial direction.
The sealed system and reservoirs of oil maintain the proper lubrication to minimize mechanical contact and
prolong the fan’ s life expectancy. The radial direction analysis shown above is essentially the same as a tradi-
tional sleeve bearing. Panasonic’ s unique HWB reduces the axial contact.
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