I want to replace the "Y" axis on my homemade cnc machine, and am interested in a pre-built bottom support linear slide assembly with a steel surface plate, ballscrew - and no motor (just a shaft for me to hookup my pullies & motor), and optional way-covers to protect against swarf & flood coolant. Table size is 12" x 16" and has 12" of travel.

Does anyone know any vendors I can check out their catalogs?