Depending on their design, series and size, SKF stainless steel deep groove ball bearings are fitted with one of the cages shown below.

	Stainless steel cages			Polymer cage
Cage type	Ribbon- type, ball centred	Riveted, ball centred	Snap-type, ball centred	Snap-type, ball centred
Material	Stamped stainless steel			PA66, glass fibre reinforced
Suffix	– Standard	– Standard	– Standard	TN9 Check availability

The lubricants generally used for rolling bearings do not have a detrimental effect on cage properties. However, some synthetic oils and greases with a synthetic oil base and lubricants containing EP additives, when used at high temperatures, can have a detrimental effect on polyamide cages.