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Y-bearings are fitted as standard with a snap- type, glass fibre reinforced PA66 cage (fig. 1), no designation suffix.
The initial grease fill does not have a detrimental effect on cage properties. However, if other greases are used, note that some synthetic greases with a synthetic base oil and lubricants containing EP additives, when used at high temperatures, can have a detrimental effect on polyamide cages. For additional information about the suitability of cages, refer to Cages and Cage materials.
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