THK Co., Ltd. is a Tokyo, Japan based manufacturer of precision machine components, established in 1971. The company developed the world's first LM Guide (linear motion guide) in 1972, and it remains the global market leader in linear motion technology. THK LM Guides, ball screws, and ball splines are used worldwide in machine tools, industrial robots, semiconductor manufacturing equipment, and automation systems.
THK's signature profiled rail guide, which replaces sliding contact with rolling contact to deliver smooth, high-rigidity, high-precision linear motion.
A patented design that separates balls in resin pockets to reduce friction and wear, retain lubricant, lower noise, and extend service life.
High-performance caged ball linear guides for machine tools, robotics, and high-speed automation.
Roller-type linear guides built for ultra-high rigidity and heavy loads in demanding machine tool applications.
A linear bearing that transmits torque while moving along a splined shaft, used in robot arms, pick-and-place units, and assembly machinery.
Compact rotary bearings with crossed cylindrical rollers that handle radial, axial, and moment loads in a single unit.
Standard, wide, miniature, and roller-type LM Guides for linear positioning across all industries.
Precision and rolled ball screws, including caged ball high-speed types, for converting rotary motion into accurate linear motion.
Linear-and-rotary motion components for torque transmission with linear travel.
Compact, high-accuracy guides and bearings for precision stages, rotary tables, and robot joints.
Linear ball bushings for simple, low-friction linear motion on round shafts.
Integrated units combining LM Guides and ball screws (such as the KR and SKR series) for ready-to-install linear positioning.
Multi-axis positioning units for inspection, semiconductor, and assembly equipment.
Spherical joint components for linkages, steering systems, and mechanical control mechanisms.
Linkage and suspension parts, with linear motion technology applied to next-generation steering, braking, and suspension systems.
Isolation systems that protect buildings and critical equipment from earthquake vibration.
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