BigPatents India

In one embodiment, a bearing (14 or 90) comprises a cylindrical bearing surface (22 or 100) supporting a spherical journal surface (20 or 98). In another embodiment, a device comprises a shaft (10 or 84) having a spherical journal surface (20 or 98) supported inside and rotatable against a cylindrical bearing surface (22 or 100). In another embodiment, a sheet media feed mechanism comprises: a chassis (62); a motor (86) mounted to the chassis (62); a rotatable shaft (84) operatively coupled to the motor (86); a roller (80) affixed to the shaft (84); an idler (82) disposed opposite the roller (80), the idler (82) and the roller (80) engagable with one another to form a nip therebetween; bearings (94/102) mounted to the chassis (62) and supporting the shaft (84), each bearing (94/102) having a cylindrical inner bearing surface (100); and the shaft (84) having a spherical journal surface (98) inside and rotatable against each bearing surface (100). (FIG.1,10)