Page 160 - FanPedia - By Aerovent

®
FAN-PEDIA BEARINGS
Published by AEROVENT.COM
Aerovent BEARING SEALS
©2017

Seal Material Shaft
GENERAL INFORMATION
- Bearing seals prevent foreign material from entering the
bearing
- Exact seal construction & material varies by bearing
manufacturer
- Seal type dictates speed limits on operation (Max RPM)

COMMON BEARING SEALS
- Labyrinth Seal (aka Non-Contact Seal)
> Used for higher speed applications
> Used on Spherical Roller Bearings (Solid & Split Pillow-
block)

- Lip Seal (aka Contact Seal)
Labyrinth Seal Labyrinth Seal > Used for low to moderate shaft surface speeds
> Used on Ball Bearings
- Taconite Seal
> Designed for dirty or abrasive environments
> Used on Split Pillowblock Spherical Roller Bearings
> Standard Type Taconite Seal: speed limits are lower than
standard labyrinth seals
> Canadian Type Taconite Seals (aka Non Contact) are
available for higher speed limits
> Taconite Seals can increase the width of the bearing
- Requires longer shaft
- May require repositioning of the bearing on the
pedestal and/or a larger bearing support structure
(i.e. bearing bar)

Lip Seal Taconite Seal
81