Abstract:
A backing ring (R) that serves to back an antifriction bearing (B) on the journal (2) of a rail car axle (A) includes an annular body (36, 52, 66, 88, 98, 118, 136, 160, 170, 188, 214, 234, 254) that seats against a fillet (6) that is located at the end of the journal and also a lip (46, 56, 70, 90, 100, 120, 138, 162, 172, 190, 216, 236, 268) that projects over a larger dust guard diameter (4) that is located on the axle immediately beyond the fillet. In addition, the backing ring includes a stabilizing element (38, 54, 68, 96, 102, 122, 142, 166, 178, 194, 224, 242, 256) which cooperates with the lip and with the dust guard diameter to lessen the tendency of the annular body to work against the fillet and create a fretting wear when the journal undergoes cyclic flexures. The stabilizing element accommodates dust guard diameters of varying size. The stabilizing element may also establish a seal between the lip and the dust guard diameter.
Abstract:
A bearing assembly (A1C) for installation over the journal (6,100) at the end of a railcar axle (4) has a backing ring (16,104) that seats against a fillet (10) at the end of the journal, an antifriction bearing (B1D) that fits around the journal, and an end cap (18,106) that extends over the end of the journal to retain the bearing and backing ring around the journal. In one form, the bearing (B) has two cones (32) that fit over the journal with an interference fit, with the inboard cone abutting the backing ring (16). A bore clip (22) holds the backing ring and inboard cone together in alignment before installation on the journal. In another form, a wear ring (108) is interposed between the backing ring (104) and the inner race (102) of the bearing (D), and the bore clip (22) extends between the backing ring and the wear ring. Once the backing ring and bearing are installed over the journal, the bore clip establishes a fluid barrier at the base of the fillet to prevent water from reaching and corrosion form developing at this critical area where flexure is greatest and also establishes fluid barriers with inside surfaces of the backing ring and inner race or wear ring.
Abstract:
A backing ring (R) that serves to back an antifriction bearing (B) on the journal (2) of a rail car axle (A) includes an annular body (36, 52, 66, 88, 98, 118, 136, 160, 170, 188, 214, 234, 254) that seats against a fillet (6) that is located at the end of the journal and also a lip (46, 56, 70, 90, 100, 120, 138, 162, 172, 190, 216, 236, 268) that projects over a larger dust guard diameter (4) that is located on the axle immediately beyond the fillet. In addition, the backing ring includes a stabilizing element (38, 54, 68, 96, 102, 122, 142, 166, 178, 194, 224, 242, 256) which cooperates with the lip and with the dust guard diameter to lessen the tendency of the annular body to work against the fillet and create a fretting wear when the journal undergoes cyclic flexures. The stabilizing element accommodates dust guard diameters of varying size. The stabilizing element may also establish a seal between the lip and the dust guard diameter.
Abstract:
A bearing assembly (A1C) for installation over the journal (6,100) at the end of a railcar axle (4) has a backing ring (16,104) that seats against a fillet (10) at the end of the journal, an antifriction bearing (B1D) that fits around the journal, and an end cap (18,106) that extends over the end of the journal to retain the bearing and backing ring around the journal. In one form, the bearing (B) has two cones (32) that fit over the journal with an interference fit, with the inboard cone abutting the backing ring (16). A bore clip (22) holds the backing ring and inboard cone together in alignment before installation on the journal. In another form, a wear ring (108) is interposed between the backing ring (104) and the inner race (102) of the bearing (D), and the bore clip (22) extends between the backing ring and the wear ring. Once the backing ring and bearing are installed over the journal, the bore clip establishes a fluid barrier at the base of the fillet to prevent water from reaching and corrosion form developing at this critical area where flexure is greatest and also establishes fluid barriers with inside surfaces of the backing ring and inner race or wear ring.
Abstract:
A backing ring (R) that serves to back an antifriction bearing (B) on the journal (2) of a rail car axle (A) includes an annular body (36, 52, 66, 88, 98, 118, 136, 160, 170, 188, 214, 234, 254) that seats against a fillet (6) that is located at the end of the journal and also a lip (46, 56, 70, 90, 100, 120, 138, 162, 172, 190, 216, 236, 268) that projects over a larger dust guard diameter (4) that is located on the axle immediately beyond the fillet. In addition, the backing ring includes a stabilizing element (38, 54, 68, 96, 102, 122, 142, 166, 178, 194, 224, 242, 256) which cooperates with the lip and with the dust guard diameter to lessen the tendency of the annular body to work against the fillet and create a fretting wear when the journal undergoes cyclic flexures. The stabilizing element accommodates dust guard diameters of varying size. The stabilizing element may also establish a seal between the lip and the dust guard diameter.