COMPACT LINEAR BUSHING KBC-25-DD-NR

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The Bosch Rexroth COMPACT LIN. BUSH. KBC-25-DD-NR (R065822530) is a high-performance linear bushing designed for general requirements with a compact construction that ensures small outer dimensions while offering a high dynamic load rating and long service life. This model features shaft diameter d, is equipped with two seals for protection, and boasts normal radial clearance in its corrosion-resistant version. The bushing is not greased, supporting low maintenance needs. Specifically engineered for applications requiring smooth linear motion, the KBC-25-DD-NR is characterized by its segmental loadbearing plates made from stainless steel, which are hardened to conform to the balls in the running track—making it suitable for environments such as medical, chemistry, and food industries where corrosion resistance is crucial. The linear bushing integrates wiper seals that serve to collect any contaminants and prevent jamming of the mechanism. Installation of this bushing is straightforward; it simply presses into place without the need for additional retention due to its integrated metal retainer that is approximately 0.5 mm larger than the outer diameter of shaft diameters ranging from 3 to 50 mm, ensuring a secure fit in the housing bore. The design includes multiple lubricant reservoirs which allow for extended lubrication intervals or even lifetime lubrication. The KBC-25-DD-NR supports high travel speeds up to n ms and operates within an ambient temperature range of -30°C to +80°C. It has a breakaway force of 0.5 N and can handle maximum dynamic loads efficiently with its robust construction, while also maintaining low friction coefficients between 0.01 and 0.25 depending on operating conditions. With a weight of just 0.02 kg, this linear bushing combines lightweight design with durability and performance, making it an ideal choice for various linear motion applications where space-saving installation and reliable operation are essential.