UK Flange Block Installation

Baart Industrial Group

Feb 11, 2026

209

INSTALLATION INSTRUCTIONS

NOTE: The steps below are for installing two flange blocks (on one shaft), with no other bearings currently installed. If you are only installing or replacing one unit, skip to step 10.

Step 1

Clean all surfaces. Remove contaminants from the shaft, sleeve, washer, nut, and bearing. Make sure shaft is free to move in either direction.

Step 2

Slide the tapered sleeve onto the shaft. Position the sleeve where you want the bearing to be installed.

Step 3

Use a light oil to lubricate the outside of the bearing sleeve, including the threads.
Do not apply anti-seize lubricant to tapered surfaces.

Step 4

Slide the flange block onto the shaft and sleeve. Tap the sleeve into the bearing.

Step 5

Slip the washer onto the shaft. Align the washer key with the sleeve keyway.

Step 6

Lightly oil the chamfered side of the nut. Slide the nut over the sleeve (chamfered side first) and begin to thread the nut to the adapter sleeve. Do not tighten the nut.

Ensure that the face of the nut is lubricated where it will make contact with the washer. Failure to lubricate these surfaces can cause friction during tightening and shear the washer key.

Step 7

Mount the flange block to the mounting surface. Tighten the bolts.

Step 8

Prevent the shaft from rotating, then tighten the nut of the mounted bearing to the torque listed in Table 4.

Step 9

Lock the nut in place on the bearing by bending a tab from the washer down into one of the slots in the nut. If needed, slightly tighten the bolt to align it with a tab.

Step 10

See steps 1-3 for installation instructions.

Step 11

To mount a second bearing to a shaft, you will need a shim stock. The thickness of the shim depends of the size of the bearing. See Table 5 to identify your shim thickness.

Step 12

Place the shim between the flange block and the mounting surface, at each bolt location, then tighten the mounting bolts.

Step 13

See steps 4-6.

Step 14

Slowly tighten the nut until the nut, bearing, and shaft turn as one unit.

Step 15

Remove the shims. This will make mounting bolts looser, but this is intended. Do not retighten mounting bolts at this time.

Step 16

Ensure the shaft can not spin then begin tightening the nut to the torque value listed in Table 4. You should reach at least 50% of this torque value before the foot of the flange block makes contact with the mounting surface. Failure to do this will pre-load your bearing. Continue tightening until the torque is reached.

Step 17

Lock the nut in place by bending a washer tab into the slot of the nut.

Step 18