Cages in CARB toroidal roller bearings are an integral part of the bearing internal design. Depending on their series and size, CARB bearings are fitted with one of the following cages:
- a glass fibre reinforced PA46 cage, window-type, roller centred (designation suffix TN9)
- a stamped steel cage, window-type, roller centred (no designation suffix)
- a machined brass cage, window-type, roller centred (designation suffix M)
- a machined brass cage, prong-type, inner ring centred (designation suffix MB)
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. For additional information about the suitability of cages, refer to Cages and Cage materials.