TM 5-3895-374-24-1 Step #9.  (Fig.  13) Lower Half of Housing Remove any paint and burrs from the mating surfaces at the spilt and thoroughly clean the housing The vertical hole at the bottom of each enclosure  groove  must  be  free  of  foreign  matter  Set  lower halves of housings on base and oil the bearing seats Place shaft with bearings Into lower halves of housings, carefully guiding triple seals into the seal grooves and being certain that the bearing outer rings  Sit  squarely  in  the  pillow  block  bearing  seats  Bolt  the  held housing  securely  In  place  [The  free  bearing  housing(s)  will  be located and bolted after completing Step #10 and centering the free bearing(s) in the free pillow block bearing seat(s).] Step #10.  (Fig.  14) Stabilizing Ring (If required) A stabilizing ring should be used only if the bearing is to be held.  Move shaft axially so  that  the  stabilizing  ring  can  be  inserted  between  the  “held” bearing  outer  ring  and  housing  shoulder  on  the  locknut  side  of bearing, where practical Center all other bearings on one shaft In their housing seats NOTE: There must be only one “held” bearing per shaft.  Other bearing or bearings must be “free” to permit shaft expansion.  If the pillow block is to have one closed end, an end plug is supplied which fits snugly into the triple seal housing groove in place of the triple seal It is inserted in the lower half of the housing before the upper hall is bolted  to  the  base  If  grease  is  used  as  a  lubricant  tt  should  be applied before the upper half is secured and in accordance with the Lubrication Notes on back page Step #11.  (Fig.  15) Upper Half of Housing (CAP) The bearing seat In the upper half of the housing (cap) should be checked for burrs, thoroughly cleaned, oiled and placed over the bearing Especially with  oil  lubrication,  use  of  a  sealing  compound  must  be  applied sparingly wipe a thin film near the outer edges Excessive amounts are forced not only out but also In between the housing bore and bearing O D and this can pinch an outer ring or make a free bearing actually  held  The  two  dowel  pins  will  align  the  upper  half  of  the housing NOTE: Caps and bases of pillow blocks are not interchangeable. Each cap and base must be assembled with Its mating part. Lockwashers and cap bolts are then applied and properly torqued to complete assembly If shimming is required, only shims which cover the full mounting surface of the pillow block are recommended Step #12.  (Fig.  16) Cutaway Illustration Here  a  section  of  the  housing  has  been  removed  to  show  the relative position of all the parts. Assembly Instructions for SKF Self-Aligning Ball Bearings (Adapter Mounting) NOTE: Do not remove slushing compound from bearing as It will mix  with  any  petroleum  grease  or  oil  Step  #1.    Check  Shaft Tolerance (See Table on Page 1, Step #1) Step #2.  (Fig.  1) Inner Triple Seal Slide  Inboard  tnple  seal  on  shaft  This  seal  will  slide  freely  into position Step #3.  (Fig.  2) Adapter Sleeve - Clean Bore & O.  Dia. Position adapter sleeve on shaft, threads outboard as indicated, to approximate  location  with  respect  to  required  bearing  centerline Micronized or powdered (not flaked) graphite or light oil applied to the sleeve outside diameter surface, results in easier mounting and removal Step #4.  (Fig.  4) Clean Bearing Bore Mount bearing on adapter sleeve, starting with the large bore of the Inner ring to match the taper of the adapter With the bearing hand tight on the adapter, locate bearing to the proper axial position on the shaft  (Do  not  apply  lockwasher  at  this  time  because  drive  up procedure may damage lockwasher) Step #5.  (Fig.  5) Locknut Apply  the  locknut  with  chamfered  face  toward  the  bearing  after lubricating the face of the locknut next to the bearing Hand tighten the nut with a spanner wrench until the adapter sleeve can neither be moved axially nor rotated on the shaft Then with a hammer dnve the spanner wrench until the locknut has been turned 900 or ¼ turn on the adapter sleeve CAUTION A loose adapter sleeve can lead to the Inner ring turning on the adapter sleeve and/or the adapter sleeve turning on the shaft To Insure that the nut is not excessively tight, make certain the outer ring of the bearing rotates Ireely When mounting a normal fit bearing, swiveling the outer ring will result In a slight drag If the bearing Is a C3 fit, the outer ring will swivel freely. Step #6.  (Fig.  6) Locknut and Lockwasher Remove  locknut  and  mount  lockwasher  on  adapter  sleeve  with inner  prong  of  lockwasher  toward  the  face  of  the  bearing  and located in the slot of the adapter sleeve Reapply locknut until tight (Do not drve bearing further up the taper as this will reduce the radial internal clearance previously secured ) Find lockwasher tang that is nearest a locknut slot Bend one of the lockwasher tangs into a slot In the nut If slot is slightly past tang, don’t loosen nut, but tighten to meet a washer tang Step #7.  (Fig.  12) Outer Triple Seal Slide outer triple seal onto the shaft Locate both inner and outer triple seals to match labyrinths In the housing Step #8.  (Fig 13) Lower Half of Housing Remove any paint and burrs from the mating surfaces at the spilt and thoroughly clean the housings The vertical hole at the bottom of each enclosure groove must be free of foreign matter Set lower halves of housings on base and oil the bearing seats Place shaft with bearings into lower halves of housings, carefully guiding triple seals into the seal grooves and being certain that the bearing outer rings  sit  squarely  In  the  pillow  block  bearing  seats  Bolt  the  held housing  securely  in  place  [The  free  bearing  housing(s)  will  be located and bolted after completing Step #9 and centering the free bearing(s) in the free pillow block bearing seat(s) ] Step #9.  (Fig.  14) Stabilizing Ring (If required) A stabilizing ring should be used only if the bearing Is to be held.  Move shaft axially so that the stabilizing ring can be inserted between the “held” bearing outer ring and housing shoulder on the locknut side of bearing, where practical Center all other bearings on one shaft in their housing seats NOTE: There must be only one “held” bearing per shaft.  Other bearing or bearings must be “free” to permit shaft expansion.  If the pillow block is to have one closed end, an end plug is supplied which fits snugly into the triple seal housing groove in place of the triple seal It Is inserted in the lower half of the housing before the upper half is bolted to the base II grease is used as a lubricant it should be applied before the upper half is secured and in accordance with the Lubrication Notes on back page (page 3-587)