Page 154 - FanPedia - By Aerovent
P. 154

®
                    FAN-PEDIA                                                                                                                                                                                                                                                BEARINGS
                     Published by                                                                    AEROVENT.COM
                       Aerovent                                                                                                                                                                                              FIXED & FLOATING BEARINGS
                         ©2017


                                                                                                                                                                                                                                 OVERVIEW
                                                                                                                                                                                                                                 Two  bearings  support  and  locate  a  shaft
                                                                                                                                                                                                                                 axially and radially in relation to the housing,
                                                            SINGLE WIDTH CENTRIFUGAL (HORIZONTAL MOUNT)                                                                                                                          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
                           Arrangements                                                     Arrangements                                                        Arrangements
                  1, 8, 9, 9F, 9ST, 9SS, 10                                                           3 & 7                                                        3SI* & 7SI*                                                           301 F and above
                                                                                                                                                                                                                                               o
                                                                                                                                                                                                                                              All Types – (1) fixed; (1) floating



                      DOUBLE WIDTH CENTRIFUGAL (HORIZONTAL MOUNT)                                                                                                     *Ball Type Bearings 300 F and
                                                                                                                                                                                                                 o
                                                                                                                                                                        below may require one fixed
                                                                                                                                                                            and one floating bearing






                                                                                                                                                                                                                                              FIXED BEARING                      FLOATING BEARING
                                                                                                                                                                                                                                                Also Know As:                         Also Know As:
                                                                                                                                                                                                                                          Non Expansion Bearing                    Expansion Bearing
                                                                                                                                                                                                                                                                                 Non-Locating Bearing



                            Arrangements                                                                         Arrangements
                                 3, 3F, & 7                                                                        3DI* & 7DI*
                                                                                                                                                                                                                                                                                                                  78
   149   150   151   152   153   154   155   156   157   158   159