2. GYRATORY CRUSHERS
A spider bearing assembly for a gyratory crusher is disclosed in which a flanged bushing has a bearing sleeve projecting downwardly between the top of a gyrating shaft and a spider hub, and the sleeve has a lower edge below a fulcrum point within the hub about ...QMS are the premier manufacture of wear and spare parts for large primary gyratory crushers; supplying the largest mines and quarries around the world since 1980. QMS provide fully-guaranteed and warranted replacement parts for your gyratory crusher including: Spider bushes, eccentric bushes, main shaft nuts, rim liners, spider shields, dust seal rings, step bearing plates, …Referring to FIG. 1, the gyratory crusher 1 embodying the invention includes a lower frame 2 provided with a vertical hub 3, an upper frame 4 forming the outer shell of the crusher chamber 5, a top frame or spider 6 mounted on the upper frame 4, and a centrally · 5.1. Introduction Gyratory crushers were invented by Charles Brown in 1877 and developed by Gates around 1881 and were referred to as a Gates crusher .The smaller form is described as a cone crusher. The larger crushers are normally known as primary crushers ...
