Han Yi's different types of ball splines are suitable for various scenarios

Applicable scenarios: Suitable for situations that require compact design, strict space constraints, and control of rotation direction clearance. For example, in small precision instruments and compact automation equipment, the internal transmission structure of cylindrical ball splines can achieve precise linear motion and torque transmission in limited space.  
Advantages: Compact structure, efficient use of space, and good stability and accuracy of motion when transmitting torque.
Case: The internal transmission mechanism of small electronic devices, such as the paper feeding mechanism of small printers and copiers.
Flange type ball spline:
Round flange type: The outer cylinder is fixed to the support base by bolts using a flange, which is easy to assemble and suitable for installation on the support base. Especially in situations where there is a risk of deformation during keyway machining or where the width of the support seat is relatively narrow, it can effectively prevent the rotational clearance generated by the mating parts, and is commonly used in CNC machine tools, four axis robotic arms, and other equipment.  
Method Blue Type: Similar to the circular flange type, it is also fixed by flanges and is suitable for scenarios that require high installation convenience, such as 3C product manufacturing equipment, semiconductor industry equipment, etc.
2. Classified by shaft diameter size:
Micro ball spline: suitable for light load and torque scenarios, commonly used in small equipment or precision instruments. For example, small detection equipment in medical devices, focusing mechanisms in optical instruments, etc., have low requirements for load and torque. The compact size and light weight of micro ball splines can meet their design needs while ensuring high motion accuracy.
Large shaft diameter ball spline: suitable for large equipment or heavy machinery with medium to high loads and torques. For example, the worktable feed mechanism of large CNC machine tools and the amplitude changing mechanism of large cranes need to withstand large loads and torques. The large shaft diameter ball spline can provide sufficient strength and rigidity to ensure the normal operation of the equipment.
3. Classified by travel length:
Infinite travel ball spline: Theoretically, it can extend its travel infinitely, suitable for applications that require long-distance linear motion. For example, some large material conveying equipment and conveyor tracks in automated production lines require ball splines to provide continuous and unrestricted linear motion to meet the conveying needs of materials or workpieces
Limited stroke ball spline: The stroke is limited and suitable for linear motion within a specific range. For example, some precision positioning devices, small lifting mechanisms, etc., these devices only need to perform precise linear motion within a certain range of travel, and limited stroke ball splines can meet their precise control requirements for travel.
4. Classified by spline shaft type:
Precision solid spline shaft: By precision grinding the rolling grooves of the spline shaft, high precision is achieved, suitable for occasions with extremely high requirements for motion accuracy. For example, the spindle drive of precision CNC machine tools and the wafer transfer system of semiconductor manufacturing equipment require high-precision motion control to ensure the machining accuracy and production quality of products.  
Hollow spline shaft: suitable for places that require piping, wiring, exhaust, or weight reduction. For example, some automation equipment that requires internal installation of cables, air pipes, etc., or aerospace equipment with strict weight restrictions, hollow spline shafts can achieve internal wiring or reduce the overall weight of the equipment while meeting linear motion and torque transmission requirements.
5. Classified by integration method:
Integrated ball spline: The nut and spline shaft form a compact unit, providing a compact structure suitable for equipment with strict space requirements and limited installation positions. For example, some small robot joints, precision automated assembly equipment, etc. require precise motion control in limited space, and integrated ball splines can meet their design requirements.
Rotating nut ball spline: The nut can rotate and is suitable for applications that require high-precision positioning and torque transmission. For example, some devices that require precise angle or position adjustment, such as angle adjustment mechanisms for precision optical instruments and pointing adjustment mechanisms for satellite antennas, can achieve accurate angle or position adjustment by rotating the nut ball spline.