TM 5-3895-374-24-1 Read All Instructions Carefully Before Assembling Shaft Tolerance Limits for Adapter Mountings (Values in Inches) (page 3-586) Mounting Procedure for SKF Split-Housing Pillow Blocks Assembly Instructions for SKF Spherical Roller Bearings (Adapter Mounting) Stabilizing  rings  that  are  included  may  or  may  not  be required    at    assembly.        “Held”    bearings    require stabilizing  rings  while  “Free”  bearings  must  not  use stabilizing  rings.    CAUTION:  Do  not  remove  slushing compound   from   bearing   as   It   will   mix   with   any petroleum grease or oil. Step #1.  Check Shaft Tolerance Step #2.  (Fig.  1) Inner Triple Seal Slide inboard triple 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 min easier bearing mounting and removal. Step #4.  (Fig.  3) Unmounted Radial Internal Clearance Measure  the  unmounted  radial  internal  clearance  In  the bearing by inserting progressively larger feeler blades the full length of the roller between the most vertical unloaded roller  and  the  outer  ring  sphere.    Do  not  roll  the  feeler blade through the clearance.  slide it through. Record the measurement   of   the   largest   size   blade   that   will   slide through.  This is the unmounted radial internal clearance. Step #5.  (Fig.  4) Bearing - 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 #6.  (Fig.  5) Locknut Apply  the  locknut  with  the  chamfered  face  toward  the bearing Use  a  lubncant  on  the  threads  and  face  of  the  locknut where  it  contacts  the  inner  ring  face  of  the  bearing  to make  easier  mounting  for  larger  sizes  LARGER  SIZE BEARINGS WILL REQUIRE A HEAVY DUTY SPANNER WRENCH AND SLEDGE HAMMER TO OBTAIN THE REQUIRED REDUCTION  IN  RADIAL  INTERNAL  CLEARANCE.  Do not attempt to tighten the locknut with hammer and drift. The  locknut  will  be  damaged  and  chips  can  enter  the bearing  in  larger  bearing  sizes  It  will  be  Impossible  to tighten the locknut far enough with a drift It lower hall of housing  is  in  position,  support  the  shaft  such  that  the bearing  outer  ring  Is  free  to  rotate.    This  will  prevent Internal  damage  to  the  bearing  during  tightening  of  the locknut. Remeasure internal radial clearance at this time Tighten  locknut  and  measure  radial  Internal  clearance with  feeler  blades  between  the  most  vertical  unloaded roller and the outer ring sphere or at the 6 00 position if the bearing is hanging  free  on  the  shaft,  until  the  radial internal clearance Is less than the measurement in Step 3 by the amount shown in the following tabulation: EXAMPLE: Determine the amount to reduce the radial internal clearance for a 37/6e diameter shaft mounting: A. Unmounted radial Internal clearance from Step 3 was 0102 mm (0.004”). B.  Reduction  In  radial  Internal   clearance   from   above table   is   a   minimum   of   0046   mm   (00018")   and   a maximum of 0064 mm (0.0025”). C.  Final   mounted   radial   Internal   clearance   will   range from: Minimum Maximum 0102 mm (0 004,) 0102 mm (0 004” -0 064 mm (0 0025') -0 046 mm (0 00188”) 0 038 mm (0 0015") 0 056 mm (0 0022”) Step #7.  (Flg.  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  drive  bearing  further up   the   taper   as   this   will   reduce   the   radial   internal clearance   previously   secured   Check   to   make   certain clearance has not changed) Find lockwasher tang that Is nearest a locknut slot Bend one of the lockwasher langs into  a  slot  In  the  nut  If  slot  is  slightly  past  tang,  dont loosen nut, but tighten to meet a washer tang. Step #8.  (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.