1888 Western Gear founded in San Francisco   1940-1984 Western Gear developed aircraft gearing, gear drive actuators, and related mechanisms to transmit rotary and linear power   1985 Bucyrus-Erie acquires Western Gear   1987 Lucas Aerospace acquires Western Gear; company renamed Lucas Western   1988 Lucas Western opens Park City Facility   1997 Rolls-Royce acquires Lucas Western; company named Rolls-Royce Gear Systems   2004 Triumph Group acquires Rolls-Royce Gear Systems; company named Triumph Gear Systems