Description Disc Harrow Bearings - Round Bore - DS210TTR2, G10771, Amco. This item is a suitable alternative for the following: 308-GW210PPB2, 31RG3-210E3, 31RG3210E3, T53781, A-DS210TTR2, ADS210TTR2, DS210TTR2, G10771, PMDS210TTR2