"Glacier" is the name of a company - now named GGB ("Glacier Garlock Bearings") which makes roller bearing and other types of bearings for industry.

sergey.alexandrov, It is a type of bearing (подшипник) manufactured by the Glacier Garlock Bearings Company of England. Their bearings are made of metal-polymer materials which offer excellent low friction performance and high wear resistance in a wide range of loads, speeds and temperatures; with or without external lubrication. http://www.ggbearings.com/index.php