Thrust Bearing- 16 x 74.5 x 51mm Models 2000, 3000, 5000, 5600, 5610, 5640, 5640, 6600, 6610, 6640, 6640, 6700, 6710, 6810, 7000, 7600, 7610, 7700, 7710, 7740, 7740, 7810, 7840, 7840, 7910, 8000, 8200, 8210, 8240, 8240, 8340, 8340, 8530, 8630, 8700, 8730, 8830