Ball Screw Peripherals Support Unit
The support unit comes in six types: Models EK, FK, EF, and FF, which are tailored to the shaft end shapes of Model BNK precision ball screws with finished shaft ends, 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.
The internal bearings of the Support Unit Models EK, FK and BK contain an appropriate amount of lithium soap-based grease that is sealed with a special seal. Thus, these models are capable of operating over a long period.
Types
Highlight feature tags
- Support unit (fixed side)
- Support unit (supported side)
- Support unit (fixed side)
- Support unit (supported side)
Features
Structure and Features
The support unit comes in six types: models EK, FK, EF, and FF, which are tailored to model BNK precision ball screw with finished shaft ends, 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.
The internal bearings of the Support Unit models EK, FK and BK contain an appropriate amount of lithium soap-group grease that is sealed with a special seal. Thus, these models are capable of operating over a long period.
Uses the Optimal Bearing
To ensure the rigidity balance with the Ball Screw, the Support Unit uses an angular bearing (contact angle: 30°; DF configuration) with a high rigidity and a low torque. Miniature Support Unit models EK/FK 4, 5 and 6 are incorporated with a miniature angular bearing with a contact angle of 45° developed exclusively for miniature Ball Screws. This bearing has a greater contact angle of 45° and an increased number of balls with a smaller diameter. The high rigidity and accuracy of the miniature angular bearing provides the stable rotational performance.
Support Unit Shapes
The square and round shapes are available for the Support Unit to allow the selection according to the intended use.
Compact and Easy Installation
The Support Unit is compactly designed to accommodate the space in the installation site. As the bearing is provided with an appropriately adjusted preload, the Support Unit can be assembled with a Ball Screw unit with no further machining. Accordingly, the required man-hours in the assembly can be reduced and the assembly accuracy can be increased.
