Page 149 - FanPedia - By Twin City Fan and Blower

FAN-PEDIA BEARINGS

Published by
Twin City Fan & Blower FIXED & FLOATING BEARINGS
©2017 TCF.COM

OVERVIEW
Two bearings support and locate a shaft
axially and radially in relation to the housing,
PLENUM FANS which is stationary. There is “fixed” side and a
“floating” side. The fixed side controls the shaft
axially. The floating side has more freedom of
movement (floating) to help compensate for
thermal expansion or contraction of shaft.

Guidelines for use
300 F and below
o
Ball Type – Use 2 fixed
Roller Type – (1) fixed; (1) floating
Split Roller Type - (1) fixed; (1) floating

Arrangement 1 Arrangement 3 Arrangements 3HA / 3HS 301 F and above
o
(Horizontal Mount) (Horizontal Mount) (Horizontal Mount) All Types – (1) fixed; (1) floating

FIXED BEARING FLOATING BEARING

Also Know As: Also Know As:
Non Expansion Bearing Expansion Bearing
(Vertical Up Mount) (Vertical Down Mount) Non-Locating Bearing

Arrangements 3SM Arrangement 3VA / 3VS
(Horizontal Mount)

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