Patent ID: 8533957

Claim:
A method of manufacturing a bearing seal comprising the steps of: feeding a steel coil of a preselected width into a ring rolling machine, cutting a divided length of the steel coil and rolling the length of steel coil into a closed coil ring having a butted joint, the butted joint of the closed coil ring is welded to form a welded steel coil ring, transferring the welded steel coil ring to a weld bead removal station, then transferring to a weld flattening machine wherein any weld bead at the butted joint between the two cut ends of the steel coil ring is flattened to form a flattened steel coil ring, transferring the flattened steel coil ring to a first pre-forming machine wherein a first profile is formed in the flattened steel coil ring to form a first profiled steel coil ring, transferring the first profiled steel coil ring to a second pre-forming machine wherein a second profile is formed in the first profiled steel coil ring to form a second profiled steel coil ring, transferring the second profiled steel coil ring to a third pre-forming machine wherein a third profile is formed in the second profiled steel coil ring to form a third profiled steel coil ring, and transferring the third profiled steel coil ring to a final forming machine wherein a final profile is formed in the third profiled steel coil ring to form a final profiled steel coil bearing seal, further comprising a step wherein the second profiled steel coil ring is transferred to a third pre-forming machine wherein a third profile is formed on the second profiled steel coil ring to form a third profiled steel coil ring prior to forming the first profile.