Rockler Pro Lift: pick the plate, then the collar.

Keep 52429 and 55803 separate

Rockler’s Pro Lift family contains a small 8¼-inch plate, SKU 52429, and a wider 9¼-inch plate, SKU 55803. Both are 11¾ inches long. The product family name alone is therefore insufficient for a replacement-plate purchase. Verify the selected SKU in the cart, not merely the photograph above it.

The manuals settle the motor-collar question

The main product page contains inconsistent smaller-motor diameter wording. We checked both model manuals instead. Page 4 of each names the Porter-Cable 7518 for the full-size housing and identifies adapter 57022 for Bosch 1617, DeWalt 616/618 and Porter-Cable 690/890 motors. The separate 57022 product page supports the named adapter relationship.

That source hierarchy matters. An editorial guess that one number looks more plausible would not be enough. Our published relationships attach to exact named motors and the model-specific manual. Other motor identities remain unknown; we do not extrapolate from a tape measurement or the collar’s advertised range.

A collar and an insert ring solve different problems

The motor collar supports the router body within the lift housing. A top insert ring changes the opening around the router bit. Buying one does not supply the function of the other. List the collar as a required part for the named smaller motors, then evaluate extra insert rings according to the job and the manufacturer’s instructions.

Do not improvise a missing collar with loose shims or substitute an accessory intended for another lift. The presence of a documented adapter is part of why this combination receives an adapter-required result at all.

Check the table’s history

PROMAXRT 25574 has its own Rockler modification bulletin for 52429. A correct small plate plus the correct motor collar still does not make that table a drop-in installation. Review the bulletin before placing an order and assess whether the modification is appropriate for your equipment and installer.

The small-plate Amazon listing in our research receipt did not conclusively establish the 52429 SKU. We have therefore left that product’s commerce link off. Its manufacturer record remains useful, and the seller can supply the missing identity evidence before a purchase. This is preferable to silently sending an owner to a possibly different lift.