What are the best deck spindle bearings for Bad Boy mowers, my deck spindles are making noise after 20 hours on a 2022 Elite 54". Found the set screws missing on the bushings under all three spindle pulleys. Could this be the noise before I replace the bearings. Anyone else have this problem. The mower stays indoors when not in use and I don't use water to clean, just blow off with air. Thanks in advance for any advice.