NA 4909
The NA 4909 is a machined‑ring needle roller bearing with an inner ring, designed to deliver high radial load capacity while still maintaining a relatively low cross‑section — making it ideal for applications where radial space is limited but load demands are significant. Its dense arrangement of needle rollers provides high stiffness, good load distribution and smooth rotation under load. The outer ring includes flanges for axial guidance, and the bearing’s design offers stable, reliable service even under continuous or heavy loads. This makes the NA 4909 suitable for industrial gearboxes, pumps, transmissions, and other heavy‑duty mechanical systems where compactness and durability matter.
NA 4910
The NA 4910 is a single‑row, machined‑ring needle roller bearing with inner ring and flanged outer ring. It offers high radial load capacity and excellent stiffness while maintaining a low cross‑sectional height — making it suitable for compact mechanical assemblies, gearboxes, pumps, alternators, and other machinery where radial space is limited but load demands are high. The design allows for smooth, precise rotation, good load distribution, and easy relubrication thanks to lubrication groove/holes in the outer ring. Its robust construction ensures reliability and long service life under continuous or heavy‑duty operation.
NA 5910
The NA 5910 is a machined‑ring needle roller bearing with an inner ring, designed to deliver high radial load capacity while keeping a relatively low cross-section — making it well suited for compact mechanical systems, gearboxes, pumps, and other heavy‑duty industrial applications. Its robust needle‑roller configuration ensures smooth, precise rotation under load and effective load distribution, even in demanding conditions. The inclusion of a lubrication hole in the outer ring helps with maintenance and ensures consistent performance over long service life.
NA 5912
The NA 5912 is a machined‑ring needle roller bearing with inner ring, designed to provide high radial load capacity while keeping a relatively low cross‑section. Its design — featuring many fine rollers running on a hardened inner ring — offers excellent rigidity, smooth rotation, and reliable performance under continuous or demanding operating conditions. This bearing is ideal for industrial gearboxes, pumps, conveyors, and other mechanical assemblies where compactness, high load‑carrying capability, and long service life are required.
NA 6905
The NA 6905 is a needle roller bearing with a machined inner ring and flanges on the outer ring, designed for applications where high radial load capacity and compact cross-section are required. Its many small-diameter needle rollers provide excellent rigidity and load distribution, which makes this bearing suitable for industrial gearboxes, pumps, electric motors, and other heavy-duty machinery. The design allows for smooth rotation, low friction, and good durability under continuous or heavy loads — ideal where shaft grinding or hardening is impractical. Made of high-grade bearing steel, NA 6905 delivers reliable performance and a long service life when properly lubricated and installed.
NA 6901
The NA 6901 is a single‑row needle roller bearing with machined rings and an inner ring; its design supports heavy radial loads while keeping a low cross‑sectional height, making it ideal for compact mechanical assemblies, gearboxes, pumps, and other industrial machinery. The dense array of needle rollers provides high load capacity, good rigidity, and smooth rotation under load. The outer ring features flanges for axial guidance, and the design allows for some axial displacement, useful in applications where shaft alignment or slight shaft movement occurs during operation. Made from bearing‑grade steel, NA 6901 delivers robust performance and long service life when properly lubricated.
NA 6902
The NA 6902 is a single‑row needle roller bearing with machined rings and an inner ring — engineered to deliver high radial load capacity while maintaining a low cross‑sectional height. Because of its dense arrangement of fine rollers and the flanged outer ring, it offers strong rigidity, smooth rotation, and reliable load distribution even in tight radial spaces. It’s commonly used in gearboxes, pumps, transmissions and other mechanical assemblies where compactness and high load capacity are required. The bearing is made from bearing‑grade steel and designed for durability, long service life, and efficient operation in demanding conditions.
NA 6903
The NA 6903 is a needle roller bearing with a machined inner ring and outer ring flanges, built to deliver high radial load capacity while maintaining a relatively low cross‑sectional height. Its dense arrangement of small‑diameter rollers ensures firm load distribution and smooth, dependable rotation — ideal for gearboxes, pumps, motors, and other industrial machinery where robust performance and compact design are required. Constructed from bearing-grade steel, NA 6903 offers good durability, low friction, and long service life under continuous or heavy-duty conditions.
NA 6904
The NA 6904 is a needle roller bearing with a machined inner ring, built to offer high radial load capacity while fitting into limited radial space. Thanks to its design — including a full set of small‑diameter rollers guided by flanges on the outer ring — it delivers dependable, smooth rotational performance under heavy and continuous loads, making it suitable for gearboxes, pumps, motors, and various industrial or mechanical applications. Constructed from quality bearing steel, the NA 6904 offers robustness, good wear resistance, and long service life when properly lubricated.
NA 6906
The NA 6906 is a high-performance needle roller bearing designed to handle heavy radial loads while operating in compact spaces. Its full-complement needle roller arrangement provides excellent rigidity and load distribution, making it suitable for high-demand applications such as industrial machinery, gearboxes, pumps, and automotive components. Built from premium bearing steel, the NA 6906 offers reliability, low friction, and long service life even under continuous or high-speed operation.
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.
HSR15R1UU(GK) Block
HSR20R1UU(GK) Block
HSR25R1UU(GK) Block
The THK HSR25R1UU(GK) Block is part of the HSR series of linear-motion guide blocks, designed for smooth, precise, and high-rigidity movement on a matching 25 mm rail. It features a full-complement ball bearing construction that provides nearly equal load capacity in all directions, including radial, reverse radial, and lateral. The block has a carriage width of 48 mm, a height of 40 mm, and a block length of 83.1 mm.
The HSR25R1UU includes M6 tapped mounting holes and end seals (“UU” type) to protect the ball-bearing interior from dust and contaminants. Its design offers a basic dynamic load rating of approximately 27.6 kN and a basic static load rating of around 36.4 kN, ensuring robust performance under heavy loads.
Because of its balanced multi-direction load handling, sturdy construction, and precise low-friction motion, the HSR25R1UU(GK) block is ideal for CNC machines, industrial automation, and other precision machinery requiring reliable, smooth linear motion.
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