Page 150 - FanPedia - By Twin City Fan and Blower

FAN-PEDIA BEARINGS

Published by
Twin City Fan & Blower BEARING SEALS
©2017 TCF.COM

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)
> Used for low to moderate shaft surface speeds
Labyrinth Seal Labyrinth Seal > 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
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