A: "SAVI features a special material composition, typically consisting of a thermoplastic matrix, reinforcing fibres and solid lubricants. The matrix and its network structure inherently deliver favourable friction and wear‑resistant properties, which are further optimised by solid lubricants. As the bearing starts to move, numerous tiny solid‑lubricant particles are released from the network. Consequently, additional lubrication with liquid lubricating oil is generally not required."

A: "The plain bearing shall be measured after being pressed into the base bore. If measurement is performed with the bearing in the unpressed condition, both its outer diameter and inner diameter will be larger than under the assembled condition (interference‑fit condition)."

A: "SAVI bearings shall be assembled by interference press‑fitting. After the bearings are pressed into the H7 housing bore, their inner diameters will shift to the corresponding tolerance range, followed by inspection using go‑no‑go gauges. The maximum interference value can reach 2 % of the inner diameter of the housing bore."

A: "Compared with conventional bronze bushings, SAVI self‑lubricating bearings feature several significant advantages. First, maintenance‑free: no oil refilling throughout the whole service life, which reduces operating costs and maintenance workload and brings lower overall cost. Second, light‑weight: the EP series weighs approximately 1/7 of bronze bushings, facilitating equipment weight reduction. Third, low noise: the damping property of plastic material can effectively absorb vibration and reduce noise. Fourth, strong environmental adaptability: it delivers more stable performance under harsh conditions such as dry friction, dust exposure and chemical corrosion."

A: "This indicates the formation of a transfer film on the bearing surface. The core lubrication mechanism of our material is to deposit an extremely thin uniform solid‑lubricating film onto the mating metal shaft surface. Before this film is fully formed, excess loosely‑adhered lubricating particles detach in powder form. This is actually an advantage of this type of bearing: it actively lubricates the mating shaft instead of wearing itself away. Once this film is fully established (typically after 24‑48 hours of operation), dust generation will cease automatically. The bearing enters a stable phase with an extremely low wear rate, and the coefficient of friction drops to approximately 0.1‑0.2.

A: "Conventional ball‑type products adopt rolling friction, and motion is realised by balls rolling within raceways. By contrast, the SAVI aluminium‑plastic linear drive works on sliding friction, where movement is achieved through sliding contact between the engineering‑plastic sliding film and the guideway surface. These fundamental differences bring the following characteristics of the SAVI‑LIN linear series: lower noise, lubrication‑free and maintenance‑free performance, dirt and dust resistance, lower cost and lighter weight. Nevertheless, ball guideways retain advantages in terms of accuracy and speed.

Therefore, selection depends on your application requirements. If your application puts high priority on noise level, maintenance cost and environmental adaptability, while ultra‑high accuracy and speed are not required, SAVI linear guideways constitute a highly‑desirable option."