SFU 4010-4 Ball Screw Nut
The SFU 4010-4 Ball Screw Nut is a heavy-duty, high-capacity linear-motion component suited for industrial and CNC applications where high load-bearing capability, long travel, and fast linear displacement are required. Designed for a 40 mm diameter screw shaft with a 10 mm lead, each revolution moves the nut 10 mm along the shaft — enabling rapid long-axis movement for heavy loads. The nut’s design includes an internal ball recirculation system (4‑circuit) that ensures smooth, low-friction motion with reduced backlash and enhanced rigidity, even under high loads or during frequent motion cycles. Made from hardened alloy steel, both screw and nut are built for durability and longevity. Its robust dimensions and mounting compatibility make SFU 4010-4 ideal for heavy CNC machines, large‑scale automation equipment, industrial positioning tables, and any application demanding high stiffness, reliability, and efficient linear motion under load.
SFU 2010-4 Ball Screw Nut
The SFU 2010-4 Ball Screw Nut is a precision linear-motion component built for CNC machines, automation systems, and other machinery where accurate, repeatable linear displacement is needed. It works with a 20 mm diameter screw and a 10 mm lead, translating each full screw revolution into 10 mm of linear travel — giving faster traverse compared to lower-lead screws. The nut uses an internal recirculating ball circuit (4‑circuit design) that reduces friction and backlash, improving rigidity and positioning accuracy under load. Constructed from hardened bearing/alloy steel for both nut and screw, it delivers good durability and lifespan even under repeated or heavy-duty use. Its flanged nut design uses a standard mounting arrangement, compatible with common supports and nut‑housings, making SFU 2010-4 a convenient and dependable choice for linear-motion axes in CNC, milling, or automation setups.
SFU 1610-4 Ball Screw Nut
The SFU 1610-4 Ball Screw Nut is a precision linear‑motion component ideal for CNC machines, 3D printers, automation equipment, and other mechanical systems where smooth, repeatable linear displacement is important. It works with a 16 mm screw shaft and provides a 10 mm linear advance per revolution, enabling fast motion along the axis. The nut uses an internal ball‑recirculation design (with 4 circuits, as indicated by “‑4”) that reduces friction and backlash, improving rigidity, responsiveness, and positioning accuracy — which is especially useful under load or during frequent motions. Built from hardened alloy or bearing steel, the nut is durable and wear‑resistant even under prolonged or heavy use, giving a long service life in demanding environments. Its flanged-nut design and standard mounting provisions make it compatible with common bearing blocks and support units, simplifying integration into machines and automation frames.
SFU 3210‑4 Ball Screw Nut
The SFU 3210‑4 Ball Screw Nut is a precision linear-motion component designed for CNC machines, automation systems, and industrial equipment that require efficient, fast, and repeatable linear displacement. With a 32 mm screw shaft diameter and a 10 mm lead, it delivers comparatively rapid linear motion per revolution — making it ideal where speed and throughput matter, while still maintaining smooth, low‑friction operation. The nut uses a 4‑circuit internal ball‑recirculation design to reduce friction, minimize backlash, and enhance rigidity — which helps preserve positioning accuracy under load. Made of hardened alloy / bearing steel and manufactured with attention to durability, the SFU 3210‑4 nut offers long service life even under continuous or heavy-duty use. Its flanged nut design with standard mounting provisions makes it compatible with common support blocks and machine assemblies, giving engineers a reliable, easy-to-integrate choice for high-speed, medium-to-heavy duty linear-motion applications.
SFU 2510-4 Ball Screw Nut
The SFU 2510-4 Ball Screw Nut is a precision linear‑motion component built for CNC machines, automation systems, and industrial equipment that require reliable, smooth, and efficient conversion of rotary motion into linear movement. With a 25 mm screw diameter and a 10 mm lead, it offers faster linear displacement per revolution — making it suited for applications where both speed and moderate load‑handling are important. The nut uses a 4‑circuit internal ball recirculation design to reduce friction, decrease backlash, and improve rigidity and accuracy under load. Constructed from hardened bearing alloy‑steel, the unit is designed for long service life and durability even over extended or repetitive use. Its standard flange mounting configuration and compatibility with common support blocks make it a dependable choice for engineers, machinists, and automation designers seeking a balance between speed, precision, and durability in their linear‑motion systems.
The SFU 1605-4 Ball Screw Nut is a precision linear-motion component engineered for CNC machines, 3D printers, engraving machines, robotics, and other automated systems where smooth, accurate, and repeatable linear travel is required. It works with a screw shaft of 16 mm diameter and a 5 mm lead, converting rotational motion into reliable linear displacement with minimal friction. The nut features a 4-circuit internal ball-recirculation design that reduces backlash and enhances rigidity, which improves positioning accuracy and repeatability under load. Made from hardened alloy/ bearing-steel, the SFU 1605-4 nut is built for durability and long service life—even under continuous use. Thanks to its standard flange-style mounting, it is compatible with common nut housings and support units (e.g. BK12/BF12), making it a convenient choice for both DIY and industrial linear-motion setups.
SFU 2005-4 Ball Screw Nut
The SFU 2005-4 Ball Screw Nut is a high-precision linear motion component designed for CNC machines, automation systems, and industrial equipment requiring smooth, accurate, and repeatable movement. Designed to operate on a 20 mm diameter screw with a 5 mm lead, it delivers efficient linear displacement with very low friction, making it suitable for both moderate-speed and moderate-load applications. Constructed from hardened alloy steel, the nut offers excellent durability, wear resistance, and long service life under continuous operation. Its 4-circuit internal recirculation design provides improved rigidity and reduced backlash, ensuring stable positioning accuracy even in demanding environments. Compatible with standard ball-screw supports and mounting blocks, the SFU 2005-4 Ball Screw Nut is a reliable choice for builders, machinists, and automation engineers who need precision and stability in their linear-motion systems.
The SFU 3505-4 Ball Screw Nut is a high-precision linear-motion component engineered for heavy-duty CNC machinery, industrial automation systems, and equipment requiring smooth, accurate, and repeatable linear positioning. Designed to work with a 35 mm diameter screw and a 5 mm lead, it provides stable, efficient linear travel with very low friction, making it suitable for applications that demand both high load capacity and consistent motion control. Manufactured from hardened alloy steel, the nut offers exceptional strength, wear resistance, and long service life even under continuous or high-stress operation. Its multi-circuit internal recirculation design reduces backlash, improves rigidity, and enhances overall positioning accuracy, ensuring reliable performance in precision-critical environments. Compatible with standard ball-screw supports and mounting blocks, the SFU 3505-4 Ball Screw Nut is an excellent choice for machine builders, CNC retrofitters, and automation engineers seeking robust, accurate, and durable linear-motion performance
NK 1212
The NK 1212 is a machined‑ring needle roller bearing without inner ring. Its design assumes that the shaft itself will serve as the inner raceway (i.e. the shaft must be hardened/ground). This makes the NK 1212 very compact, low‑profile and suitable for light weight or space‑constrained applications where shaft treatment is already handled, such as small motors or compact gear assemblies.
NKI 1516
The NKI 1516 is a machined‑ring needle roller bearing with inner ring, providing a hardened raceway independent of the shaft — which means it can be used even if the shaft is not specially treated. It offers excellent radial load capacity while maintaining a compact cross‑section, making it ideal for gearboxes, small motors, and industrial machinery requiring low-profile bearings. The needle‑roller and cage assembly ensures smooth rotation, good rigidity, and reduced friction under load
NKI 2530
The NKI 2530 belongs to the same series of needle roller bearings with inner ring; it is designed for heavier‑duty applications where larger shaft diameter is needed while still offering compact radial space usage. It is suitable for larger industrial gearboxes, conveyors, heavy machinery shafts, and other systems where strong radial load support and compact bearing profile are required.
NKIS 50
The NKIS 50 is a single‑row, machined‑ring needle roller bearing with inner ring, designed for applications where radial space is tight but high radial load capacity and stability are required. Its dense complement of fine rollers guided by a steel cage — combined with a sturdy outer ring with flanges — delivers excellent stiffness, smooth rotation, and even load distribution under heavy-duty or continuous operation. Because the bearing comes complete with its own inner ring, it's a suitable choice in situations where the shaft surface isn’t hardened or ground to function as a raceway, ensuring proper bearing seating, easier installation, and long service life when properly lubricated.
NA 4900
The NA 4900 is the smallest standard machined‑ring needle roller bearing with inner ring in the “NA 49..” series, designed for very compact, low‑cross‑section radial load applications. Its small dimensions make it suitable for precision assemblies, small motors or pumps, and wherever minimal space and light loads are involved. Despite its compact size, it retains the typical advantages of needle roller bearings: high radial load capability relative to its size, smooth rotation, and reliable performance with proper lubrication.
NA 4901
The NA 4901 is a single‑row needle roller bearing with machined rings and an inner ring, featuring outer ring flanges for guidance. It delivers high radial load capacity while keeping a low cross‑sectional profile — well suited for compact mechanical assemblies, small gearboxes, and lightweight industrial equipment where space is constrained but load demands exist. The needle‑roller configuration gives reliable, smooth rotation and good rigidity under load, and its steel construction ensures durability and a long service life.
NA 4902
The NA 4902 is a single‑row needle roller bearing with machined rings, flanges on the outer ring, and an inner ring — designed to deliver high radial load capacity while maintaining a low cross‑sectional height, making it ideal for assemblies where radial space is limited. Its compact form factor and dense arrangement of fine rollers ensure smooth, precise rotation, high stiffness, and reliable load distribution under continuous or heavy-duty conditions. This bearing is commonly used in gearboxes, pumps, alternators, and other mechanical systems needing durable performance and efficient operation.
Categories
Contact Us
0092-340-8354886
0092-302-1953238
Address
AS ENTERPRISES 26, Manzoor Square , Plaza Quarters , M.A. Jinah Rd , Karachi. Pakistan
