One Piece Roller Assembly Grind Spacer   INST 103.1

Service Bulletin: INST 103.1

Subject: One Piece Roller Assembly Grind Spacer

Recommendations: 

1. With the bearing installed in the roller, mount it along with the un-ground spacer to the roller bearing shaft.
2. Place this arrangement in the clamp ring on a work bench, as shown in Figure 1.
3. Use a depth micrometer to measure form the mounting surface of the roller shaft to the mounting surface of the clamp ring. Record this measurement as dimension (B).
4. (With a mandrel removed and the station in full forward position) Use a straight edge to span across the face of the clamp ring mounting surface and use a depth micrometer to measure from that surface to the mounting surface of the roller shaft in the slide. Record this measurement as dimension (A). See Figure 2.
   NOTE: Subtract the thickness of the straight edge used for obtaining dimension (A).
5. Subtract dimension (A) from dimension (B) and add 0.001″ (for clearance). This will be the amount to be ground from the spacer. See formula below: