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  • Clearance Seals and Labyrinth Seals
    the radial clearance of the bearing being sealed. In addition, the operating speed and temperature must be considered when using a labyrinth seal. These seals generally do not perform well at low operating speeds. Another form of labyrinth seal is a laminar sealing ring, which uses a series of flat
  • Ensuring Tight Seals (.pdf)
    -. be answered in order to judge a. 4. sary to achieve labyrinth seal effec-. seal strip/abradable combination. tiveness. Thermal expansion, shaft. are: motion, tolerance stack-ups, and. Do the seal strips undergo. 3. 3. rub tolerance influence the radial. wear?. 6. clearance. Labyrinth seals experi-. Does
  • Bearing Closures - Bearing Seals and Bearing Shields
    ), labyrinth type rubber seals are available. These bearings have a groove on the inner ring as well where the seal lip makes contact. This creates a more effective seal without increasing torque. Double lip rubber seals are also available and or normally of the labyrinth type. These are more
  • New spin on spindle bearings
    lubricant away and allow the bearing to rust or wear prematurely and possibly seize. Labyrinth seals are probably the most common way to keep contaminants out. Spindle labyrinth seals may include an external splashguard followed by a narrow gap, a large drainage chamber, and, space permitting, more gaps
  • Condition Monitoring of Steam Turbines by Performance Analysis
    machines, the relative lost output for each 25µm increase above design clearance of about 600µm is: HP: blade tips, 5kW; interstage seals, 6kW per stage; end glands 15 to 25kW. IP: blade tips, 2.5kW; interstage 2kW per stage; end glands 5kW LP: blade tips and interstage, 1.5kW per stage; end glands