... -UCFL318UC200 Series (light series), UC300 series (heavy series), and distortion product UB, (SB) 200 Series, UK200 series, UK300 series. UEL200 family, UEL300, series, SA200 ... the pivot 4. With a smooth hole and seal installation 5.High quality ISO9001:20006.good service OEM ... Ball Bearings Sealing DeviceDual Seals, Single-layer Seal, Triple-lip seal.Type of Ball BearingsSet Screw type, Eccentric ...