RA108RRB-IMP Bearing for Universal ProductsOne New Aftermarket Replacement Ball Bearing Insert for Agricultural Equipment This spherical ball bearing insert with eccentric locking collar (RA108RRB series) is a heavy duty, non relubricatable replacement bearing used on a wide range of agricultural equipment including round balers, hay equipment, and field implements. The factory prelubricated, double sealed design provides reliable protection against contaminants, and the spherical outer