Class 12.9 Threaded Rods & Studs Fasteners

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Class 12.9 Threaded Rods and stud bolt installation method and application scenario

1. Class 12.9 Threaded rod Fixed at both ends
Both ends are axially fixed with a pair of angular contact bearings, which are used in medium-speed rotation and high-precision occasions, but the processing accuracy and assembly requirements of parts are also high.
2. Grade 12.9 Stud Bolt Fixed at one end, supported at the other end
One end is axially fixed with a pair of angular contact bearings, and the other end is supported by a deep groove ball bearing. This is the most commonly used installation method, which is used for medium-speed and high-speed rotation; medium and high-precision occasions.
3. Grade 12.9 threaded rods Manufacturer Supported at both ends
Both ends are supported by deep groove ball bearings, which are used in occasions with small axial loads. This method is rarely used.
4. Stud Bolt grade 12.9 Fixed at one end, free at one end
One end is axially fixed with a pair of angular contact bearings, and the other end is not supported. It is used in occasions with short shaft length (limited by space), low-speed rotation, and medium precision.