Krone Spur Gear 139.190.0 / 139.171.2 AM167 AM202 AM242 AM282 AM322 Disc Mower. In excellent condition. Includes NSK open bearing, spacer, bearing shaft, (2) O-rings, bolt, & nut, all in excellent condition. See my other listings for additional parts for these disc mowers including the same gear with a sealed bearing for the shaft driven Krone models.