THK supplier in Romania

At THK we quote LM Guide linear guides from the SHS, HSR and SVR series, precision ball screws, actuators and cross roller rings; the full code of the guide or screw is enough for us to quote.

Founded in 1971 · Headquarters: Tokyo, Japan

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Who is THK and what does it make?

THK is a Japanese manufacturer headquartered in the Shibaura district of Tokyo, founded in April 1971 and known for linear guides with ball recirculation. In 1972 it developed and marketed this type of guide, called the LM Guide. Since then the portfolio has expanded to ball screws, ball splines, cross roller rings, joints, actuators and other motion transmission elements. The company's history mentions the expansion of sales offices to the United States and Germany in the 1980s, and the global structure now includes a Europe region.

For a machine designer or a maintenance technician, the range divides clearly. For guides there is the caged ball type (Caged Ball LM Guide), the full ball type and the caged roller type, with well-known series such as SHS and HSR. Ball screws are offered in precision or rolled versions, with machined ends (for example SDA-VZ or BNK) or unmachined. Actuators are grouped in series such as KSF, ES, EC, VLA, GL-N, TH and TY.

A THK guide is hard to identify without the full code from the block or the rail: the series, size, length, accuracy class and preload. On a replacement, these data matter more than the commercial name of the guide.

What do we supply from the THK range?

Product	Description
LM Guide — linear guides (SHS, HSR, SVR)	Guides with carriages and rails, with balls that circulate in grooves of a radius close to that of the ball. The manufacturer offers caged versions for low noise and long maintenance-free operation, full-ball versions for rigidity and roller versions for heavy loads.
Ball screws	High-efficiency lead screws: precision (caged, full ball), with machined ends SDA-VZ or BNK, as well as rolled. They are chosen according to diameter, lead, stroke and axial load.
Actuators	Complete linear modules, grouped in series such as KSF (compact), ES and EC or VLA (economical), GL-N, TH and TY (universal). They include the guide, the drive element and the housing.
Cross roller rings and ball splines	The cross roller ring is a bearing with rollers arranged orthogonally, which takes loads from any direction. Ball splines transmit torque with axial travel, and the joints complete the range.

Why THK?

The LM Guide linear guide — developed and marketed by the company since 1972
Three guide types: caged ball, full ball and caged roller — for speed, rigidity or heavy loads
Precision and rolled ball screws, with machined or unmachined ends — from BNK to SDA-VZ
Actuators in distinct series — KSF, ES, EC, VLA, GL-N, TH, TY — ready to mount on the production line
A distinct Europe region in the group structure — relevant for checking availability in Europe

Which THK codes and series are requested most often?

Code	Description
SHS	LM Guide, global standard model with caged balls
HSR	LM Guide with full balls
SVR	LM Guide, series with sizes such as SVR45LC
SDA-VZ	Precision ball screw, machined ends
BNK	Precision ball screw, machined ends
KSF	Actuator, compact series
ES	Actuator, economical series
EC	Actuator, economical series
VLA	Actuator, economical series
GL-N	Actuator, universal series
TH	Actuator, universal series
TY	Actuator, universal series

Where is THK equipment used?

Machine tools — guides and ball screws for feed axes
Industrial automation — actuators and guides
Robotics — cross roller rings and joints
Production lines — ready-to-mount linear modules
Precision linear motion equipment — ball screws

How do we supply THK in Romania?

We can quote THK LM guides, ball screws and actuators, if we have the full code of the part to be replaced. When the item is available locally or at the supplier, the time is 24–72 h; otherwise we bring it in to order through EU supply channels or by import, usually 1–4 weeks. We need the series and size, the rail length, the number of carriages, the accuracy class and the preload; for screws, the diameter, lead, length and type of ends. Actuators and configured assemblies may require a longer lead time, depending on the brand and the specifications. The exact lead time appears in the quotation.

We check the availability of a series once we have the full code, and discontinued or superseded series are confirmed on the code before the quotation.

Frequently asked questions about THK

What does THK produce?

THK produces LM Guide linear guides, ball screws, ball splines, cross roller rings, joints and actuators. The company was founded in 1971 in Tokyo and in 1972 developed the linear guide with ball recirculation called the LM Guide.

How do I choose between a caged ball guide and a full ball one?

The cage eliminates friction between the balls, which means low noise, long maintenance-free operation and high speeds. The full ball version has more balls in contact, hence a higher load capacity. The decision is made on speed, load and the acceptable noise level.

Do you supply THK products in Romania and how fast?

Yes. Items available locally or at the supplier usually arrive in 24–72 h; those to order, through EU channels or by import, usually take 1–4 weeks. Actuators and configured assemblies may take longer, and the exact lead time is confirmed in the quotation.

Can I replace a discontinued THK guide with a new model?

Only after checking, based on the manufacturer's technical documentation for discontinued products; we do not state an equivalence without the full code. With the series, size, length and mounting dimensions, we ask for confirmation of a compatible replacement.

What information do you need for a ball screw quotation?

The diameter and lead, the total length, the type of nut and ends (machined or unmachined), the accuracy class and the code from the old part. If there is no code, the shaft dimension and a photo of the nut help. On that basis we ask the supplier for the suitable version among the BNK, SDA-VZ or rolled series.

How do I request a THK quotation?

Send the THK code from the nameplate and the quantity; we reply in English with availability and the lead time written in the quotation.