SRG45R2UU+2040LH
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Overview |
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| Part Number | SRG45R2UU+2040LH |
Brand: LILY ![]() |
Interchangeable With: THK |
Characteristics |
|
| System of Measurement | Metric |
| Series | Caged Roller LM Guide |
| Assembly Type | High Assembly |
| Block Model | SRG45R1UUH(GK)BLOCK |
| Block Type | Square Type |
| Load Type | Heavy Load |
| Rail Mounting Type | Locking |
| Mounting Hole Size (M) | M10*20 |
| Number of blocks | 2 |
| Standard Lubrication Nipple | B-PT1/8 |
| Rail Model | SRG45-2040LH |
| Number of Rail Holes | 39 |
Dimensions |
|
| Size | 45 mm |
| Assembly Height (H) | 70 mm |
| Distance from Block Bottom to Rail Bottom (H1) | 8 mm |
| Distance from Both Sides of Rail to Both Sides of Block (N) | 20.5 mm |
| Block Width (W) | 86 mm |
| Block Mounting hole Width (B) | 60 mm |
| Grease Nipple Length (G) | 16 mm |
| Block Mounting hole Length (C) | 60 mm |
| Block Length (L) | 155 mm |
| Rail Length | 2040 mm |
| Rail Width (WR) | 45 mm |
| Rail Height (HR) | 37 mm |
| Outer Diameter (D) | 20 mm |
| Hole Depth (h) | 17 mm |
| Inner Diameter (d) | 14 mm |
| Pitch (P) | 52.5 mm |
| End Distance (E) | 22.5/22.5 mm |
Performance |
|
| Accuracy Classs | High Precision H |
| Preload Code | ★No Preload, Radial clearance with Preload -2~-1μm ★C1 Light Preload,Radial clearance with Preload -3~-2μm ★C0 Medium Preload,Radial clearance with Preload -5~-3μm |
| Basic Dynamic Rated Load (C) | 91.9 kN |
| Basic Static Rated Load (C0) | 192 kN |
| Static Rated Moment (MR) | 4.98 kN-m |
| Static Rated Moment (MP) | 20 kN-m |
| Static Rated Moment (MY) | 20 kN-m |
Properties |
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| Block weight | 3.2 kg |
| Rail weight | 11.6 kg/m |
The Roller Type Linear Guideway features a Square Type block, characterized by its symmetrical, cube-like profile that delivers exceptional rigidity and the ability to withstand high loads from multiple directions — including radial, reverse, and lateral forces. Unlike ball type guideways, the roller type utilizes cylindrical rollers as the rolling elements, providing a significantly larger contact area between the rollers and raceways, resulting in superior load capacity, higher rigidity, and enhanced resistance to deformation under extreme loading conditions, making it the ideal choice for heavy-duty industrial applications such as large-scale CNC machining centers and heavy gantry systems where maximum structural performance and precision are simultaneously required.
The Roller Type Linear Guideway is designed for Heavy Load applications, capable of withstanding exceptionally high radial, lateral, and reverse loads simultaneously. Unlike ball type guideways, the roller type utilizes cylindrical rollers as the rolling elements, providing a significantly larger contact area between the rollers and raceways, resulting in superior load capacity, higher rigidity, and enhanced resistance to deformation under heavy loading conditions, making it the ideal choice for demanding industrial applications such as large-scale CNC machining centers, heavy gantry systems, and heavy press machines where maximum load capacity and precision linear motion are simultaneously required.
The Roller Type Linear Guideway features a High Assembly type, characterized by its elevated mounting configuration that positions the rail and block at a greater installation height, providing enhanced structural rigidity and superior load-bearing capacity. Unlike ball type guideways, the roller type utilizes cylindrical rollers as the rolling elements, providing a significantly larger contact area between the rollers and raceways, resulting in superior load capacity, higher rigidity, and enhanced resistance to deformation under extreme loading conditions, making it the ideal choice for demanding industrial applications such as large-scale CNC machining centers and heavy gantry systems where maximum structural performance, installation flexibility, and precision are simultaneously required.
What is the defining characteristic of the Square Type block in a Roller Type Linear Guideway?
The Square Type block is defined by its symmetrical, cube-like profile that maintains an equal height and width dimension, creating a highly balanced and rigid structure. In the context of the Roller Type guideway, this square profile works in conjunction with the cylindrical roller rolling elements to deliver exceptional rigidity and multi-directional load resistance that significantly surpasses what a ball type guideway of equivalent size could achieve, making it uniquely capable of meeting the most demanding heavy-duty industrial load requirements with precision and reliability.
What are the typical applications best suited for a Heavy Load rated Roller Type Linear Guideway?
Heavy Load rated Roller Type Linear Guideways are deployed in the most demanding industrial applications where forces far exceed the capacity of ball type guideway systems. Typical applications include large-scale CNC machining centers performing deep cutting operations on hard materials where cutting forces are extreme and continuous; heavy gantry systems supporting massive tooling or workpiece assemblies where maximum rigidity and multi-directional load resistance are critical; large hydraulic and mechanical press machines where extreme compressive and lateral forces are applied repeatedly throughout the production cycle; heavy forging and stamping equipment where massive impact loads must be absorbed without compromising motion accuracy; and large aerospace and shipbuilding manufacturing systems where enormous structural components must be positioned with exceptional precision under very high and sustained loading conditions.
What defines the High Assembly type in a Roller Type Linear Guideway?
The High Assembly type is defined by its elevated mounting configuration that positions the rail and block at a greater installation height, providing a larger block body and greater internal capacity for an enhanced number of cylindrical roller circuits and a deeper raceway profile. In the context of the Roller Type guideway, this increased height works in conjunction with the line contact geometry of the cylindrical rollers to deliver the maximum possible load capacity, superior structural rigidity, and enhanced resistance to deformation under extreme loading conditions — making it the most structurally capable linear guideway configuration available for the most demanding heavy-duty industrial applications.





