The LME 25 UU is a closed-type linear ball bearing, also known as a linear bushing, designed to slide smoothly along a 25 mm shaft, providing precise, low-friction linear motion. The “UU” designation indicates that the bearing is sealed on both ends to protect against dust, dirt, and moisture, extending its service life and reducing maintenance. Internally, it contains six rows of steel balls retained in a polymer cage, allowing smooth, stable motion along the shaft. The bearing has an outer diameter of 40 mm, an overall length of 58 mm, and a total width of 44.1 mm. It has a basic dynamic load rating of approximately 980 N and a static load rating around 1570 N, enabling it to support moderate loads reliably. The sealed, closed design combined with hardened steel construction makes the LME 25 UU ideal for CNC machines, linear actuators, automation systems, 3D printers, and other equipment requiring precise, shaft-guided linear motion.
The LME 30 UU is a linear ball‑bushing bearing designed to provide smooth, low‑friction linear motion along a 30 mm shaft. The “UU” designation indicates that it is sealed on both ends with rubber seals to protect against dust, dirt, and moisture, extending the bearing’s operational life. It has an outer diameter of 47 mm and an overall length of 68 mm. Inside, it contains six rows of hardened steel balls held in a resin or plastic retainer, which roll along precision‑ground raceways to minimize friction while supporting the moving load. The bearing’s outer housing is made of hardened steel, giving it strength and rigidity for industrial applications. LME 30 UU is commonly used in CNC machines, 3D printers, automation equipment, robotics, and other machinery requiring stable, precise linear motion on a shaft. Its sealed, closed‑type design makes it particularly suitable for environments where contamination or debris could impair performance.
ST 162837 B
The ST 16 B is a small, lightweight linear ball bushing designed for smooth linear motion on 16 mm shafts. With a 16 mm bore, 28 mm outer diameter, and 37 mm length, this bearing is ideal for compact linear guide systems, light automation setups, and precise motion mechanisms. Its dynamic load capacity of approximately 1,910 N and static load rating of about 1,980 N make it suitable for light to moderate loads. The ST 16 B’s compact size and efficient design provide reliable, low-friction linear movement where space is limited and accurate, repeatable motion is required.
ST 203245 B
The ST 20 B is a compact linear ball bushing designed for smooth, low-friction linear motion along a 20 mm diameter shaft. With a 20 mm bore, 32 mm outer diameter, and 45 mm length, it is ideal for light-to-medium duty linear guides, automation equipment, and small-scale mechanical systems. Its construction enables moderate radial loads with a dynamic load rating of around 2,060 N and a static rating near 2,320 N. Lightweight yet efficient, ST 20 B provides a reliable solution for guiding linear shafts in CNC machines, 3D printers, small actuators, or other systems where compact size and precise linear motion are required.
ST 254055 B
The ST 25 B is a compact linear ball bushing designed for smooth, low‑friction linear motion along a 25 mm diameter shaft. With a 25 mm bore, 40 mm outer diameter, and length of 55 mm, it offers a small‑footprint yet dependable solution for linear guide systems, CNC machines, automation equipment, and other mechanical setups requiring precise, repeatable linear travel. Inside the bearing sleeve, rows of hardened steel balls circulate to provide smooth, accurate sliding motion with minimal resistance, which helps extend shaft and bearing life. With a dynamic load capacity around 3,600 N and a static load rating near 4,700 N, ST 25 B is suitable for light to moderate loads and frequent motion cycles. Its compact size and modest weight make it ideal for applications where space is limited but reliable linear motion is essential.
ST 304565 B
The ST 30 B is a durable linear ball bushing designed for smooth, low-friction linear motion along a 30 mm diameter shaft. With a 30 mm bore, 45 mm outer diameter, and 65 mm length, it provides a compact yet robust solution suitable for CNC machines, automation equipment, linear guides, and other mechanical systems requiring precise and stable linear travel. Its construction features multiple rows of hardened steel balls that circulate within the sleeve, ensuring smooth and accurate linear motion with minimal resistance. The ST 30 B supports moderate to heavy loads with a dynamic load capacity of approximately 4,800 N and a static load rating of about 6,270 N. Lightweight and compact, it is ideal for guiding 30 mm shafts in tight layouts, providing reliable, efficient, and long-lasting performance in industrial and mechanical applications.
ST 352570 B
The ST 35 B is a robust linear ball bushing designed for smooth, low‑friction linear motion along a 35 mm diameter shaft, combining compact form factor with dependable load-bearing capacity. With an inner diameter of 35 mm, an outer diameter of 52 mm, and a 70 mm bushing length, it offers a balanced design ideal for linear guides, automation equipment, CNC machines, and other mechanical systems requiring precise and stable linear travel. Its construction supports both moderate dynamic and static loads, making it suitable for applications where repeated motion and moderate loads are expected. The ST 35 B ensures smooth sliding motion, reduces friction compared to plain bushings, and maintains shaft alignment — contributing to longevity and reliability in linear motion setups. Its compatibility with standard 35 mm shafts makes it a versatile choice for retrofits or new builds where linear motion is required.
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.
HSR15A1UU(GK) Block
The THK HSR15A1UU (GK) is a compact, high-precision linear guide designed for smooth, stable, and low-friction linear motion. It features a 15 mm-wide rail and a compact block measuring 47 mm in width, 24 mm in height, and 56.6 mm in length, making it ideal for applications where space is limited.
Inside the block, multiple recirculating ball bearings run along precision-ground raceways, providing smooth, accurate, and repeatable motion. Its four-way contact design distributes loads evenly in radial, reverse-radial, and lateral directions, ensuring rigidity and stability even under varied load conditions.
The HSR15A1UU (GK) is perfect for light to medium-duty tasks in small CNC machines, precision jigs, automation assemblies, measurement or inspection equipment, and other machinery requiring compact, precise linear motion. Despite its small size, it offers a high dynamic load capacity (~10.9 kN) and static load capacity (~15.7 kN), making it a reliable and versatile solution for precision applications.
HSR20A1UU(GK) Block
The THK HSR20A1UU(GK) is a high-precision linear motion system designed to provide smooth, stable, and low-friction movement for a wide range of industrial and automation applications. Featuring a 20 mm wide rail and a block measuring 63 mm in width, 30 mm in height, and 74 mm in length, this guide offers a compact yet robust solution for medium-duty loads.
The block contains recirculating ball bearings arranged in four rows along precision-ground raceways, allowing the balls to roll smoothly and deliver accurate, repeatable motion. Its four-way contact design ensures balanced load capacity in radial, reverse-radial, and lateral directions, enabling the guide to maintain high rigidity and stability even under complex or uneven loads. Additionally, the internal geometry allows for minor self-adjustment, compensating for small installation misalignments and ensuring consistent performance.
The HSR20A1UU(GK) is ideal for CNC machinery, automation systems, robotic equipment, milling machines, and other precision devices that require reliable linear motion. Its combination of compact dimensions, high load capacity, low friction, and durability makes it a versatile choice for applications where precision, repeatability, and smooth operation are critical.
HSR25A1UU(GK) Block
The THK HSR25A1UU linear guide is a high-precision linear motion system designed for smooth, stable, and low-friction movement in industrial machinery and automation equipment. It features a 25-series rail with a block measuring approximately 70 mm in width, 36 mm in height, and 83.1 mm in length, providing a robust solution for heavier loads and larger machines compared to smaller series guides.
The block contains multiple recirculating ball bearings arranged in four rows within precision-ground raceways, allowing the balls to circulate smoothly and deliver consistent linear motion. This four-way contact design ensures balanced load capacity in all directions—radial, reverse-radial, and lateral—enabling the guide to support complex loads while maintaining high accuracy and stability. The internal geometry also allows for minor self-adjustment, compensating for small installation misalignments to ensure smooth operation.
The HSR25A1UU is built for durability and long service life, making it ideal for demanding applications such as CNC machines, milling and grinding equipment, robotic systems, and automated assembly lines. Its compact yet strong design reduces friction and drive power requirements while providing precise, repeatable motion. This combination of high load capacity, rigidity, and reliability makes the HSR25A1UU an efficient and versatile choice for both industrial-scale machinery and precision engineering projects.
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