Linear Bushing THK LMF25UU Chrome Steel Flanged Rubber Sealed 25×40

Description

Product Overview

The THK LMF25UU linear bushing is engineered for high‑performance linear motion in demanding industrial environments. Crafted from premium chrome steel SAE‑52100, the bushing offers exceptional hardness, wear resistance, and load‑bearing capacity. Its rubber‑sealed flanged design protects internal components from contaminants while providing a secure mounting interface. With a 25mm inner diameter and 40mm outer diameter, the bushing fits standard shafts and guideways, delivering smooth, low‑friction travel across a full 59mm length. The precision‑machined surfaces ensure consistent alignment, reducing vibration and extending service life. This product meets the rigorous standards of THK, a global leader in linear motion technology, and is suitable for a wide range of applications, from CNC machines to 3D printers.

Usage

Designed for versatility, the LMF25UU bushing excels in environments where precision and durability are paramount. It is commonly installed in linear tables, multi‑axis machining centers, robotic arms, and high‑speed 3D printing platforms. The rubber seal guards against dust, oil, and moisture, making it ideal for workshop floors, clean rooms, and outdoor equipment. Engineers and technicians appreciate the interchangeable size standard, allowing quick replacement without re‑machining. Whether used in a two‑axis slide for material handling or a three‑axis gantry for rapid prototyping, the bushing provides consistent performance, reducing maintenance intervals and downtime.

Why Choose Us

Choosing the THK LMF25UU means selecting a product backed by decades of engineering expertise and a commitment to quality. Each bushing undergoes rigorous testing for dimensional accuracy, hardness, and seal integrity, ensuring it meets or exceeds OEM specifications. THK’s global support network offers technical assistance, fast replacement parts, and comprehensive documentation. Our manufacturing process utilizes advanced CNC machining and heat‑treatment cycles to achieve the tight tolerances required for high‑speed applications. Additionally, the rubber‑sealed design minimizes the need for external lubrication, simplifying installation and reducing operational costs. When you purchase from us, you receive a product that combines proven reliability with modern design innovations, backed by a responsive customer service team ready to assist with any technical queries.

Key Features

• Premium chrome steel SAE‑52100 construction for superior wear resistance
• Rubber‑sealed flanged design protects against contaminants and extends service life
• Standard 25mm ID and 40mm OD fit a wide range of shafts and guideways
• Full 59mm length provides stable support for heavy loads and high‑speed travel
• Backed by THK technical support and fast after‑sales service

FAQ

What size shaft does the LMF25UU fit?

The bushing is designed for a 25mm inner diameter, accommodating shafts up to 25mm in diameter. It is compatible with standard linear guide systems that use this size.

Is additional lubrication required?

Because the bushing features a rubber seal, it is protected from external contaminants and typically does not require regular lubrication. However, for extreme load conditions, a light application of compatible grease may be beneficial.

Can the bushing be used in outdoor environments?

Yes. The rubber‑sealed design offers resistance to moisture and dust, making it suitable for outdoor machinery, provided the operating temperature stays within the material’s specified range.

How does the flanged design aid installation?

The flanged edge provides a secure mounting surface that can be bolted directly to a base plate or machine frame, simplifying alignment and reducing the need for additional fixtures.

What warranty does THK provide?

THK offers a standard one‑year limited warranty covering material defects and workmanship. Extended warranty options are available through authorized distributors.