THK HSR25A

THK HSR25A Linear Guide Block

Description

The THK HSR25A is a high-precision, high-rigidity linear motion guide block. As part of THK’s globally recognized HSR series, it provides smooth and accurate linear movement for a wide variety of industrial applications. This model is a flanged type, allowing for secure mounting from the top. It is engineered for long life and maintenance-free operation under demanding conditions. This is a used, tested component in excellent working condition.

Specifications

• Manufacturer: THK
• Model: HSR25A
• Series: HSR
• Type: Linear Guide Block (LM Guide)
• Size: 25
• Block Type: Flanged with tapped mounting holes
• Dynamic Load Rating: 25.3 kN
• Static Load Rating: 41.5 kN

Label Info

• Brand: THK
• Model Number: HSR25
• Serial/Batch: FG6B367

Application

Ideal for applications requiring high precision and rigidity, such as CNC milling machines, lathes, grinding machines, industrial robots, automation lines, and measurement equipment.

Country of Origin

Made in Japan.

CO2 Impact

Opting for this reused component prevents the emission of approximately 1.54 kg of CO2 compared to manufacturing a new one. This is equivalent to the carbon captured by a tree in over a month.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the correct rail size for this HSR25A block?

This block is designed to be used with a THK HSR25 rail, which has a nominal width of 25 mm. Using any other size or brand of rail may result in poor performance or damage.

What type of lubrication is recommended for the THK HSR25A?

THK recommends using a lithium-based grease. The block has a grease nipple port for easy maintenance. Regular lubrication is critical to ensure a long service life and smooth operation.

Can this block be used as a standalone component?

No, this linear guide block must be installed on a corresponding HSR25 linear rail to function. It is a component of a larger linear motion system and cannot be used by itself.

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Last Update: Friday, March 13, 2026