BOSCH REXROTH
R067211240

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth SUPER LINEAR BUSH KBB-12-D (R067211240) is a high-precision linear motion component designed for smooth and accurate linear movement in various applications. This closed-type linear bushing does not feature self-alignment, which allows it to transfer lower tipping forces along the axial direction. It is equipped with a single seal to protect against contaminants, enhancing its longevity and performance. The KBB-12-D is constructed with steel bearing plates that have precisely machined ball guide grooves and optimized ball lead-in chamfers, ensuring exceptionally smooth travel and a long service life. The lack of self-alignment is deliberate to ensure stability and precision in applications where these attributes are critical. Its maximum dynamic load capacity (Cmax) and maximum acceleration (amax) are indicative of its robustness, while the friction coefficient ranges from 0.01 to 0.05, with a maximum of 0.25 under certain conditions. This model operates efficiently within an ambient temperature range of -30°C to +80°C and can handle high travel speeds up to 5 m/s; however, speeds at this upper limit may reduce the service life due to increased wear on plastic parts. Testing has demonstrated reliability over total travel distances ranging from 100 km to 100,000 km without failure. The SUPER LINEAR BUSH KBB-12-D has an outer diameter (D) that fits seamlessly into corresponding systems. It also features integrated wiper seals that contribute to its frictional properties when not under radial load, ensuring clean operation even in demanding environments. Lastly, this linear bushing has a weight of 0.1 kg and comes with radial clearance specifications for shaft-bore fitment, ensuring compatibility with a variety of shaft diameters for diverse application requirements. The ball retainer and outer sleeve are made from high-quality PA or POM materials, while the balls themselves are crafted from rolling bearing steel—no initial lubrication is required upon installation.