We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
THK logo

THK

THK is a Japanese manufacturer of linear motion systems, recognized globally for its development of the first commercial linear motion (LM) guide in 1972. The company's product line centers on precision linear guides, ball screws, and related components used in industrial automation, machine tools, semiconductor fabrication, and material handling equipment. THK's linear guides are engineered to provide low friction, high rigidity, and consistent positioning accuracy under varying loads and speeds. Key series include the SHS (standard type), HSR (heavy-load type), and SSR (radial type) ball carriages and profile rails, which are available in multiple sizes and preload options. These components are typically constructed from carbon steel with hardened raceways and feature integrated seals (end seals, side seals) to protect against contamination in harsh environments. THK products are designed to meet ISO and JIS standards for dimensional interchangeability, and they are commonly specified in applications requiring repeatable linear motion with minimal maintenance. 3G Electric stocks over 145 SKUs of THK linear motion guides, including ball carriages and profile rails from the SHS, HSR, and SSR series, covering rail widths from 15 mm to 34 mm and carriage heights from 25.4 mm to 40.5 mm. The inventory includes variants with light preload or no preload, as well as options with end seals and side seals for extended service life. 3G Electric supports global procurement by offering these components with detailed specifications—such as material composition, dimensions, and load ratings—enabling engineers and procurement specialists to select the correct part for their application without relying on marketing claims. The availability of both carriages and rails ensures that complete linear guide assemblies can be sourced from a single distributor, simplifying supply chain logistics for maintenance and new builds.

Genuine
OEM Parts
Expert
Tech Support
1 Day
Quote Response
Worldwide
Origin
Worldwide Shipping
Air & sea freight
Datasheets on Request
Technical specs & drawings
1-Day Quote Response
Singapore-based team
Browse:
Show
Page 3 of 4

About THK

THK is a Japanese manufacturer of linear motion systems, recognized globally for its development of the first commercial linear motion (LM) guide in 1972. The company's product line centers on precision linear guides, ball screws, and related components used in industrial automation, machine tools, semiconductor fabrication, and material handling equipment. THK's linear guides are engineered to provide low friction, high rigidity, and consistent positioning accuracy under varying loads and speeds. Key series include the SHS (standard type), HSR (heavy-load type), and SSR (radial type) ball carriages and profile rails, which are available in multiple sizes and preload options. These components are typically constructed from carbon steel with hardened raceways and feature integrated seals (end seals, side seals) to protect against contamination in harsh environments. THK products are designed to meet ISO and JIS standards for dimensional interchangeability, and they are commonly specified in applications requiring repeatable linear motion with minimal maintenance. 3G Electric stocks over 145 SKUs of THK linear motion guides, including ball carriages and profile rails from the SHS, HSR, and SSR series, covering rail widths from 15 mm to 34 mm and carriage heights from 25.4 mm to 40.5 mm. The inventory includes variants with light preload or no preload, as well as options with end seals and side seals for extended service life. 3G Electric supports global procurement by offering these components with detailed specifications—such as material composition, dimensions, and load ratings—enabling engineers and procurement specialists to select the correct part for their application without relying on marketing claims. The availability of both carriages and rails ensures that complete linear guide assemblies can be sourced from a single distributor, simplifying supply chain logistics for maintenance and new builds.

Common Applications

  • CNC machine tools — THK SHS series ball carriages and profile rails for precise linear motion in milling and turning centers
  • Semiconductor wafer handling — THK SSR series radial guides for compact, low-profile stages in cleanroom environments
  • Automated assembly lines — THK HSR series heavy-load guides for high-rigidity positioning in pick-and-place systems
  • Material handling equipment — THK SHS series guides for linear axes in conveyor and sorting systems
  • Medical imaging devices — THK SSR series carriages for smooth, low-friction movement in diagnostic scanners
  • Packaging machinery — THK SHS series profile rails for high-speed linear motion in cartoners and wrappers

Frequently asked questions

Common questions about THK from 3G Electric.

What are the key differences between THK SHS and SSR series ball carriages?

The THK SHS series is a standard-type linear guide designed for general-purpose applications, offering balanced load capacity in all directions and a compact profile. The SSR series is a radial-type guide optimized for applications where the primary load is radial (perpendicular to the rail mounting surface). SSR carriages typically have a lower height profile compared to SHS of the same rail width, making them suitable for space-constrained installations. Both series use ball recirculation and are available in carbon steel with various seal options.

What preload options are available for THK linear guide carriages?

THK linear guide carriages are offered with different preload levels to adjust rigidity and clearance. Common options include no preload (standard clearance) and light preload. Light preload provides a slight interference fit between the carriage and rail, reducing play and increasing stiffness under load, which is beneficial for applications requiring higher positioning accuracy. Preload selection depends on the application's load conditions, speed, and required precision.

How do I select the correct THK profile rail length for my application?

THK profile rails are available in standard lengths, such as 220 mm for sizes 15 and 20, but custom lengths can be ordered. To select the correct rail, determine the required travel distance and add the carriage length plus any overtravel allowance. Ensure the rail width matches the carriage size (e.g., a size 20 carriage requires a 20 mm nominal rail). Verify the rail's overall dimensions (width, height) and mounting hole pattern to fit your assembly.

What seal options are available on THK ball carriages?

THK ball carriages typically come with end seals and side seals as standard or optional features. End seals are located at the ends of the carriage to wipe debris from the rail as it moves, while side seals protect the ball recirculation path from contamination. These seals are made of materials like nitrile rubber or polyurethane and are designed to extend the service life of the guide in dusty or dirty environments. Some models also offer additional wiper options for enhanced protection.

Are THK linear guides interchangeable with other brands?

THK linear guides are designed to specific dimensional standards, and while some dimensions may be similar to other brands, interchangeability is not guaranteed. Rail width, carriage height, mounting hole spacing, and preload characteristics vary between manufacturers. For reliable performance, it is recommended to use THK carriages and rails together as a matched set. If replacing an existing guide, verify all critical dimensions and load ratings against the original component.

Does 3G Electric supply THK products?

Yes — 3G Electric (S) Pte. Ltd. supplies THK products. We stock the THK catalog and supply genuine factory-original products with full manufacturer warranty and technical support.