New polyamide cage Precision Bearings

olyamide 66 (PA66), with or without glass fibre reinforcement, is characterized by a favourable combination of strength and elasticity. Due to its excellent sliding properties on lubricated steel surfaces and the superior finish of the contact surfaces, PA66 cages reduce friction, frictional heat and wear. PA66 can be used at operating temperatures up to 120 °C (250 °F). 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 PA66 cages. For information about the suitability of cages。PA66 is the standard cage material for many super-precision cylindrical roller bearings and angular contact thrust ball bearings.

Polyamide 46 (PA46) has the same excellent material properties as those of PA66. Glass fibre reinforced PA46 has a higher permissible operating temperature than glass fibre reinforced PA66 and can therefore be used at operating temperatures up to 135 °C (275 °F). However, as with PA66, 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 PA46 cages.