Support units are dedicated bearing components used as a set with ball screws.
They come in several types: models EK, FK, EF, and FF, which are tailored to fit Model BNK and Model SDA-VZ precision ball screws with finished shaft ends; models EK-L and EF-L, which are for low shaft centers; and models BK and BF, which are standardized for general ball screws.
The support unit on the fixed side includes a JIS Class 5-compliant angular bearing provided with an adjusted preload. The support unit on the supported side uses a deep-groove ball bearing.