SDM20GA 20mm Linear Ball Bushing

These ball bushings are compact, quiet and cost-effective linear motion components for high-precision applications. Bearing inner diameter is 32mm and the bearing is 42 mm long. The point contact between the load balls and the cylinder axis render the bearing suited for low load speed movement.

Specifications

Tips: Five Reasons for Using A Ball Bushing in Linear Motion Applications

1. Simple Working Mechanism
   Ball bushings are designed with mechanism that features the rolling motion of ball elements. The fact that linear motion is achieved with simple mechanism enables the linear bushing to be used in various applications, such as food processing, transportation, semiconductor manufacturing equipment, etc.
2. Smooth Movement
   The outer housing of a linear ball bushing bearing includes a ball retainer which is delicately designed to maintain the circulation of ball elements, offering smooth linear motion.
3. Compact Design
   Linear ball bushings produce linear motion using a round shaft as the guiding axis for saving space, resulting in compact designs.
4. Less Friction
   Ball raceway surface is precision processed. Thanks to the minimized contact area between steel balls and the raceway surface, linear ball bushing bearings provide lower friction than other linear motion mechanisms. 
5. Plentiful Shapes and Mounting Methods
   Linear ball bushings boast lots of types, including standard, closed, open, flanged, clearance-adjustable and many more so as to meet a wide range of application requirements.