John Crane

John Crane ｜United States (Smiths Group)

Market Position: Global market leader by revenue (~14–17% share). Founded in Chicago in 1917; patented the first automotive mechanical seal in 1939.

Core Specialties: Centrifugal compressor dry gas seals (the Type 28 series is the global industry benchmark), API 682 heavy-duty cartridge pump seals, and elastomeric/metal bellows seals (Type 1, Type 2, Type 21). Holds the largest inst