HDR
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LM Guide Suited for Single Rail Applications Resistant to moments Compatible with plate covers

Suited for Single Rail Applications

Feature 1 Suited for Single Rail Applications The Model HDR was designed to be used even in tables configured for one LM Guide. It enables single-axis tables to be compact and lightweight. ■ Example Table Configuration Ball screw Feature 2 LM Rail Surface Protected from Foreign Materials The ball raceways of the Model HDR are featured on the sides of the LM rail, making it difficult for foreign materials to reach them. Ball raceways Ball raceway Ball raceway To use the product more safely, plate covers can also be installed to improve the contamination protection performance. Plate cover...

Feature 1 Suited for Single Rail Applications High Rigidity in the Rolling Direction The Model HDR features a rigid design that can be used even in tables configured for one LM Guide. It enables single-axis tables to be compact and lightweight. ■ Example Table Configuration Ball screw … Rolling direction Ideal Applications Horizontal 水平使用 Wall-Mounted 壁掛使用 The Model HDR is ideal for applications where a constant MC moment will be applied, such as configurations where an object will hang over the side of the table, or where the table is wall-mounted. Other Single-Axis Configurations Where...

Feature 2 LM Rail Surface Protected from Foreign Materials The ball raceways of the Model HDR are featured on the sides of the LM rail, making it difficult for foreign materials to reach them. Wood chips or spatter stuck to the rail Rubber chips, plastic dust, and other fine debris stuck to the rail Small or fallen objects atop the rail Small object Machining dust Adhering substance Fallen object No matter what gets on the rail, there's no need to worry! ! Woodworking machine that may produce wood chips Applications where foreign materials might stick to the LM rail surface include: ! Tire...

Structure of the HDR The Model HDR features raceways on the sides of the LM rail, which come into contact with the balls at a 45°angle. This design is resistant to tilt in the rolling direction. LM rail HDR Cross-Sectional Structure (DB Structure) DB Structure (Back-to-Back) This contact structure is designed so that the raceways fully support the balls even when an MC moment is applied. As a result, this design is highly rigid and resistant to tilt in the rolling direction. It is often used in conjunction with angular ball bearings when the moment load is high. Mc moment Direction of force...

4-Way Equal Load The Model HDR is designed to equally bear loads applied to the LM block from four directions. (Four directions: radial, reverse-radial, horizontal) As a result, this model can be used in any orientation, enabling a wide variety of applications. Radial direction load Reverse-radial direction load Horizontal load Horizontal load The same load can be supported from all four directions. The Model HDR is equally suited for use in a horizontal orientation and any other orientation. The images are illustrative examples of LM Guide installations. Globally Standard Dimensions The...

Lineup This model comes in eight sizes ranging from 15 to 65, and a lineup of thirteen block types is available: SC/C/LC, SR/R/LR, SV/V/ LV, UV/UW, and US/UT. Block type Short type Standard type Long type Contamination Protection Accessories It is necessary to prevent foreign materials from getting inside the product, as it will lead to abnormal wear and a shortened service life. If it is likely that foreign materials will get inside, it is important to select an effective sealing or contamination protection device suited to the environmental conditions. ■ Seals Option Compatibility End...

■ Laminated Contact Scraper LaCS Option Compatibility For locations with an adverse environment, Laminated Contact Scraper LaCS is available. LaCS removes minute foreign material adhering to the LM rail in multiple stages and prevents it from entering the LM block with a laminated contact structure (3-layer scraper). Contamination protection accessories End seals + side seals + LaCS Double seals + side seals + LaCS End seals + side seals + metal scrapers + LaCS Double seals + side seals + metal scrapers + LaCS ・Since the three layers of scrapers fully contact the LM rail, LaCS is highly...

A plate cover can be placed over the entire upper surface of the LM rail to better prevent foreign materials from getting inside the LM block. Special tools that suit the installation method for the plate cover are available. Plate cover Plate Cover Installation Tool Cover Stamper A plate cover installation tool and removing/mounting jig are available to make the plate cover installation process easier. Contact THK for details. A jig is available to slide the plate cover on and install while the LM block is mounted on the LM rail. Contact THK for details. Note 1) Please order the plate...

■ Dedicated Cap for LM Rail Mounting Holes Option Compatibility Using dedicated caps to cover the LM rail mounting holes helps prevent foreign material from entering the mounting holes and LM block. CV Caps/C Caps The caps are made of a special synthetic resin. The CV cap is the successor to the C cap, and its new structure makes it easier to insert. Bolts used Bolts used GC caps are made of metal. (They are RoHS compliant.) D D GC caps adhere closer to the counterbore than CV caps D inserted. and C caps, so there is no clearance once theyφ are LM rail mounting bolt LM rail Note 1) GC caps...

Option Compatibility The QZ Lubricator feeds the right amount of lubricant to the LM rail raceway. This allows an oil film to be constantly formed between the balls and the raceway and significantly extends the lubrication maintenance interval. The QZ Lubricator is made primarily of three components: (1) a highly oil-impregnated fiber net (which stores lubricant), (2) a high-density fiber net (which applies the lubricant to the raceways), and (3) an oil control plate (which adjusts the amount of oil being applied). The lubricant is supplied from within the QZ Lubricator using the basic...