| Customization: | Available |
|---|---|
| Contact Angle: | 15° |
| Aligning: | Aligning Bearing |
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Pioneering Precision Motion Solutions Since 1971
THK Co., Ltd. (Toughness, High Quality, Know-how), founded in 1971 and the world's first developer of linear motion (LM) guides in 1972, dominates as a global leader in precision motion control systems. With over 50 years of innovation, THK integrates patented rolling-contact technology, sub-micron grinding, and IoT-enabled designs to deliver solutions that excel in high-speed, high-rigidity, and harsh-environment applications. Certified to ISO 9001/14001, THK operates 12 global production hubs, serving 150+ countries with 48-hour OEM support and a 65% share in the international linear motion market359.
Linear Motion Revolution:
LM Guide Technology: Roller/ball retainers eliminate mutual friction, enabling 30% higher speeds, 3-5 dB noise reduction, and maintenance-free operation up to 20,000 km in CNC systems59.
Ball Retainer Series (SHS/SSR): Reduces lubricant consumption by 50% while extending service life by 200% vs. conventional designs5.
Ultra-High Speed & Precision:
BWH Series Angular Contact Rings: Dual-row steel balls + integrated preload achieve THK's highest-speed rotation (40,000 rpm), cutting thermal rise by 30% in machining centers1.
P2/P4 Tolerance: Sub-micron accuracy for robotics and semiconductor equipment27.
Extreme Environment Resilience:
CRES Stainless Models (SUS440C): FDA H1 grease + IP69K triple-lip seals resist corrosion in food/pharma washdowns610.
C-Lube Solid Lubrication: Porous resin matrices support 5-year maintenance-free operation (-40°C to 250°C)9.
Global Applications:
CNC Machining Centers, Industrial Robots, Semiconductor Manufacturing, Medical Imaging (CT/MRI), Aerospace Actuators, and EV Production Lines369.
Engineered for High-Speed, High-Rigidity Motion Control
| Category | Series | Key Models | Technical Highlights | Primary Applications |
|---|---|---|---|---|
| Linear Motion Guides | Ball Retainer Type | SHS, SSR, SNR | - Retainers eliminate ball-to-ball contact - Noise ≤20 dB, speed 1.5× traditional KR-types - 20,000-km maintenance-free |
CNC Machines, Robotics Actuators |
| Roller Retainer Type | SRG, SRN | - Ultra-high rigidity, shock load resistance - Preload adjustable via W33 lubrication grooves |
Steel Rolling Mills, Presses | |
| Cross Roller Bearings | RA Series (Outer Ring Split) | RA5008-RA20013 | - Thin-walled, lightweight design - 3-4× higher rigidity vs. standard bearings - Robot joint miniaturization |
Industrial Robot Arms |
| RE Series (Inner Ring Split) | RE2508-RE60040 | - Solid outer ring for rotation accuracy - ±25° misalignment compensation |
Rotary Tables, Solar Trackers | |
| Rotary Bearings | BWH Angular Contact | BWH100/120/200 | - Dual-row steel balls + oil-air lubrication - 40,000 rpm, integrated preload - 30% lower heat rise vs. roller types |
High-Speed CNC Spindles |
| Linear Ball Bushings | Standard LM/LME | LM8, LME20 | - Point-contact design for minimal friction - Interchangeable with ISO-shaft tolerances |
Packaging Machines, 3D Printers |
| Flanged Types | LMF (Round), LMK (Square) | - Bolt-on mounting for compact integration - Centralized load distribution via multi-row balls |
Automated Assembly Lines | |
| Specialized Solutions | Ceramic Hybrids | HA-II Inserts | Si3N4 balls for 100,000+ rpm, 30% energy savings | EV Motor Spindles |
| Stainless Units | SUS Series | FDA-compliant seals, CIP-resistant | Food Processing, Pharma Mixers |
Innovative Sub-Systems:
Ball Splines (LBS/LT Series): Transmit torque during linear motion via 6-row ball arrays (120° spacing), ideal for robotic arms5.
LM Actuators (SKR/KR Series): Integrated LM guides + ball screws reduce design by 40%5.
Cam Followers (CAMROL®): Crowned ODs + LUBRI-DISC+ seals handle 200 kN radial loads in printing presses16.
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