THK has consistently set the benchmark for innovation in the field of industrial automation. As the first company to develop the Linear Motion (LM) Guide, THK introduced groundbreaking technology that revolutionized the precision and efficiency of machinery. 

 

Alongside LM Guides, THK also develops and supplies essential machine components such as ball screws, electric actuators, and various automotive and transportation components. Undoubtedly, THK linear motion products are vital in enhancing the functionality of modern machinery across various industries.

 

LM Guides

Linear Motion Guides are integral machine components that convert sliding motion into rolling motion. This conversion enables machine parts to move smoothly, easily, and precisely in a straight line. As a result, LM Guides have significantly enhanced the precision, rigidity, speed, and energy efficiency of numerous industrial machines. 

By incorporating advanced features like LM guide actuators, these guides provide superior performance in applications relying heavily on precision motor control.

The introduction of the Caged Ball LM Guide in 1996 and the Caged Roller LM Guide in 2001 has further improved these aspects and expanded their applications. These guides are now critical components in machine tools, semiconductor manufacturing equipment, and other industrial equipment.

Key Models:

  • Full-Ball Type: HSR, HDR, SR, NR/NRS-X, HRW, SRS-G, RSX, RSR, HR, GSR, CSR, MX, JR, HCR, HMG, NSR-TBC, HSR-M1, SR-M1, RSR-M1, HSR-M2, HSR-M1VV
  • Caged Ball LM Guide: SHS, SSR, SHW, SRS, SCR, EPF, SVR/SVS
  • Caged Roller LM Guide: SRG, SRN, SRW
  • Full-Roller Type: HRX

 

Ball Screws

Ball screws efficiently convert rotary motion into linear motion by circulating balls between a screw shaft and a nut. The incorporation of caged ball technology in THK's Caged Ball Screws has resulted in longer service life, reduced noise, and extended maintenance-free periods.

THK offers both precision ball screws and rolled ball screws. These screws are indispensable in machine tools, industrial robots, and semiconductor manufacturing equipment. They are also designed to support high loads, making them ideal for replacing hydraulic cylinders in equipment such as injection molding machines and presses.

Key Models:

  • Precision Ball Screw: BIF-V/BIF, DIK, DIR, BNFN-V/BNFN, DKN, BLW, BNF-V/BNF, BNT, DK, MDK, WHF, BLK, WGF, BLR
  • Rolled Ball Screw: JPF, BTK-V, MTF, BNT, BLK, WTF, CNF, BLR
  • Precision, Caged Ball Screw: SBN-V/SBN, SBK, HBN, SDA-V, SBKH
  • DIN Standard Compliant Ball Screw: EPB-V, EBB-V
  • Finished Shaft Ends: BNK
  • Precision Ball Screw / Spline: BNS, NS

 

Actuators

Actuators combine separate machine components, including Linear Motion Guides, drive systems, and base frames into one part, simplifying design and construction. This results in compact designs and significant cost savings. LM guide actuators enable quick assembly of multi-axis systems, allowing designers to focus on performance.

Actuators are essential in a variety of applications, from industrial automation to robotics. They are widely used in assembly lines, packaging machinery, and precision equipment, providing controlled, precise movements. Linear actuator motors are particularly effective in environments requiring high speed and accuracy, such as semiconductor manufacturing and medical devices.

Key Models:

  • Caged Ball LM Guide Actuator: SKR
  • LM Guide Actuator (full-ball type): KR
  • LM Actuator Model GL-N: Lightweight, high-rigidity aluminum base with Caged Ball LM Guides
  • LM Actuator Model GL: Integrates ball screw or belt drive with an aluminum base
  • LM Actuator Model TH: Electric actuator with central ball screw shaft or belt
  • LM Actuator Model TY: High-speed, long-stroke actuator
  • Low Price Actuator VLA: Simple design, low cost, environmentally friendly
  • Rod Actuator CRES: Compact, rigid, splash-proof construction
  • Linear Motor Actuators: GLM 10, 15, 20AP, 25

 

Electric Actuators

Electric actuators combine a guide component like an LM Guide with a ball screw, linear motor, or other drive component. They are modular, simplifying design and reducing assembly time, which is crucial for industries such as electronics. THK offers a range of electric actuators from basic units to high-end components designed for high precision or clean room specifications.

Key Models:

  • ES/EC, EG, KRF, KSF, US/USW, PCT/PC, TNU

 

Automotive and Transportation Equipment

THK produces L&S (Linkage and Suspension) products like link balls, which are spherical slide bearings with a ball stud. Made from aluminum, these components are highly resistant to corrosion and wear, making them significantly lighter than traditional steel parts. THK RHYTHM and THK RHYTHM AUTOMOTIVE also produce steering and suspension components, including cold-forged ball joints and aluminum links.

 

Ball Splines

Ball Splines are rolling guide spline bearings that allow for greater allowable loads and torque transmission while making linear movements. These splines, introduced in 1971, were the precursor to the LM Guide. They are used in various equipment, including industrial robots, medical equipment, and chip mounters.

Key Models:

  • High Torque Model: LBS
  • Medium Torque Model: LT
  • Caged Ball Spline: SLS/SLF
  • Rotary with Gears Model: LBG
  • Rotary Model: LTR

 

Cross Roller Rings

Cross Roller Rings are roller bearings with internal cylindrical rollers arranged orthogonally to facilitate load bearing in all directions. The incorporation of spacer cages prevents roller skew and friction. These rings are used in the rotating parts of industrial machinery, including industrial robots, machining center swivel tables, medical equipment, and semiconductor manufacturing equipment.

THK cross roller rings offer several benefits, including high rigidity and precision in rotational movements. They are designed to support loads from multiple directions for enhanced stability and accuracy. The incorporation of spacer cages reduces friction and wear, extending lifespan and reliability.

Key Models:

  • Inner Ring Rotation: RB, RA, RA-C
  • Outer Ring Rotation: RE
  • Inner Ring/Outer Ring Rotation: RU, RAU, RBU
  • High-Speed, Double-Row Angular Contact Ball Ring: BWH

 

Conclusion

THK is a master of innovation, consistently pushing the boundaries of what’s possible in industrial automation. Their commitment to quality and technological advancement has set new standards for precision and efficiency in various industries.

When it comes to selecting a distributor for your THK products and motion control requirements, Technico, Inc. in Warren, Ohio, stands head and shoulders above the competition. Their extensive inventory, engineering expertise, inventory stocking capabilities, precision machining services, and commitment to personalized support make them the ideal partner for industrial automation professionals. Visit their website at www.technico.com to learn more about linear motion products or pick up the phone (330-847-7000) and start a conversation with the experts at Technico today. Your success is their priority.