John Crane Inc. is a subsidiary of Smiths Group

Smiths Group

Smiths Group plc is a global engineering company headquartered in London, United Kingdom. It has operations in over 50 countries and employs around 23,550 staff....

, which is a British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 company listed on the London Stock Exchange

London Stock Exchange

The London Stock Exchange is a stock exchange located in the City of London within the United Kingdom. , the Exchange had a market capitalisation of US$3.7495 trillion, making it the fourth-largest stock exchange in the world by this measurement...

.

John Crane designs and manufactures mechanical seals (including gas lubricated seals

Dry gas seal

Dry gas seals are non-contacting, dry-running mechanical face seals consist of a mating ring and a primary ring. When operating, grooves in the rotating ring generate a fluid-dynamic force causing the stationary ring to separate and create a gap between the two rings...

), sealing support systems, gland packing, asset management systems, power transmission couplings, bearings and bearing isolators for the oil & gas, chemical, pharmaceutical, pulp and paper and mining sectors. The business has 20 manufacturing sites and more than 6,400 employees located in 50 countries.

John Crane was originally founded in 1917 as John Crane Packaging Company.