ST 406080 B
The ST 40 B is a linear motion ball bearing (linear bushing) designed for smooth, low‑friction sliding along a 40 mm shaft in automated and mechanical systems. With an inner diameter of 40 mm, outer diameter of 60 mm, and a robust 80 mm length, this bearing provides stable support and precise linear travel for applications such as CNC machines, linear actuators, guides, and automation equipment. Made from hardened chrome steel, ST 40 B offers good durability and resistance to wear under continuous or repetitive motion, while its dynamic and static load ratings ensure it can sustain considerable loads without compromising performance. Its compact cylindrical shape and moderate weight make it easy to integrate into linear motion systems, offering a reliable and cost-effective solution for guiding shafts, rails, or rods in industrial or DIY setups.
The LM80UU is a heavy-duty linear motion ball bearing designed for smooth, accurate, and low-friction movement along an 80 mm precision shaft. Built from hardened bearing steel, it features multiple recirculating ball circuits that provide excellent load capacity and rigidity, making it ideal for industrial automation, CNC machinery, packaging systems, and heavy linear motion equipment. Its double-sealed “UU” design helps keep dust and contaminants out, ensuring long life and reliable operation even in demanding environments. With its large inner diameter and robust construction, the LM80UU delivers stable, precise linear travel for high-load and long-stroke applications.
The MGN 12 C is a narrow-width miniature linear guide block from the MGN series, designed for compact and precise linear motion applications. It runs on a 12 mm wide rail, with the carriage block approximately 27 mm wide and an assembly height of about 13 mm. Its light weight, roughly 0.03–0.034 kg, makes it ideal for small machinery and devices where space is limited.
The block uses a Gothic-arch contact geometry for its ball bearings, providing good stiffness and rigidity and allowing it to withstand loads from multiple directions, including moment loads, despite its small footprint. The balls are retained in a cage, keeping them captive even if the block is removed from the rail, which simplifies assembly and maintenance.
Because of its compact size, low weight, and smooth low-friction motion, the MGN 12 C is well-suited for applications such as 3D printers, small CNC machines, robotics, measuring instruments, and other miniature automated systems where precision and space efficiency are more important than heavy-load capacity.
The MGN 15 C is a miniature linear guide block from the “MG” series, designed for light- to moderate-load precision applications. Its compact, narrow design makes it ideal for equipment where space is limited, such as 3D printers, light-duty CNC machines, robotics, and measuring instruments. The block features a Gothic-arch contact geometry that provides high stiffness and rigidity against moment loads from all directions while keeping size and weight minimal.
The MGN 15 C has a block width of approximately 32 mm, a height of about 16 mm, and runs on a 15 mm wide rail. Its lightweight design, around 0.06 kg, reduces inertia, making it easier to drive with low-power motors or actuators. The block uses rolling steel balls retained by a cage, which ensures smooth, low-friction motion and prevents ball displacement during assembly or maintenance.
Overall, the MGN 15 C combines a compact footprint, good rigidity, low weight, and smooth linear motion, making it well-suited for small or lightweight automated systems where precision and space efficiency are essential.
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