Climax R2CC-Series Re-Machinable Two-Piece Clamping Couplings are a supplied with an undersized pilot bore. These unique couplings allow the user room to re-bore the ID without damaging the clamp screws. The ID can be safely opened to the maximum bore size listed in the product table indicated as the Max Bore.
When opening the R2CC-Series bore:
1. Start by inserting a shim in the saw cuts on both sides of the coupling as illustrated . Shim thickness is provided in the chart below.
| PILOT BORE (in) | MAX BORE (in) | OD (in) | PART LENGTH (in) | SHIM THICKNESS (in) |
| 1/4 | 3/4 | 1-3/4 | 2-5/8 | 0.093 |
| 1/2 | 1 | 2 | 3 | 0.093 |
| 3/4 | 1-1/2 | 2-1/2 | 3-3/4 | 0.093 |
| 1 | 2 | 3-1/4 | 4-7/8 | 0.093 |
2. Tighten the clamp screws so that the coupling clamps down on the shims.
3. The coupling bore is then machined with the installation screws tightened and the shims on both sides holding the two halves of the coupling apart.
For a printable version of these instructions, please click here: R2CC Proper Re-machining Instructions.
