NH451620ANC1PCZ
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Overview |
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| Part Number | NH451620ANC1PCZ |
Brand: LILY ![]() |
Interchangeable With: NSK |
Characteristics |
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| System of Measurement | Metric |
| Series | Heavy Load Ball Type Linear Guideway |
| Assembly Type | High Assembly |
| Block Model | NAH45ANZ |
| Block Type | Square Type |
| Load Type | Heavy Load |
| Rail Mounting Type | Locking |
| Mounting Hole Size (M) | M10*17 |
| Number of blocks | 1 |
| Standard Lubrication Nipple | Rc1/8 |
| Rail Model | N1H451620LCNPCZ |
| Rail Fixing Bolt Hole (mm) | M12 |
| Number of Rail Holes | 16 |
Dimensions |
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| Size | 45 mm |
| Assembly Height (H) | 70 mm |
| Distance from Block Bottom to Rail Bottom (H1) | 14 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 |
| Distance from Mounting Hole Center to Block Edge (B1) | 13 mm |
| Grease Nipple Length (G) | 13 mm |
| Block Mounting hole Length (C) | 60 mm |
| Block Length (L) | 139 mm |
| Rail Length | 1620 mm |
| Rail Width (WR) | 45 mm |
| Rail Height (HR) | 38 mm |
| Outer Diameter (D) | 20 mm |
| Hole Depth (h) | 17 mm |
| Inner Diameter (d) | 14 mm |
| Pitch (P) | 105 mm |
| End Distance (E) | 22.5/22.5 mm |
Performance |
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| Accuracy Classs | Normal C |
| Preload Code | ★ZT: Slight Clearance -5 ~ 15 μm ★ZZ: Light Preload -7 ~ 0 μm ★ZH: Medium Preload -14 ~ -7 μm |
| Basic Dynamic Rated Load (C) | 84.5 kN |
| Basic Static Rated Load (C0) | 140 kN |
| Static Rated Moment (MR) | 2.14 kN-m |
| Static Rated Moment (MP) | 1.74 kN-m |
| Static Rated Moment (MY) | 1.46 kN-m |
Properties |
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| Block weight | 3 kg |
| Rail weight | 12.3 kg/m |
The Heavy Duty Ball Linear Guideway features a Square Type block, characterized by its symmetrical, cube-like profile that provides exceptional rigidity and the ability to withstand high loads from multiple directions — including radial, reverse, and lateral forces. This block type is ideal for heavy-duty industrial applications such as CNC machining centers and gantry systems where stability and precision are critical.
The Heavy Duty Ball Linear Guideway is designed for Heavy Load applications, capable of withstanding exceptionally high radial, lateral, and reverse loads simultaneously. Its robust construction and precision ball recirculation system ensure smooth, reliable linear motion even under demanding load conditions, making it the ideal choice for heavy-duty industrial environments such as CNC machining centers, large gantry systems, and heavy press machines.
The Heavy Duty Ball Linear Guideway features a High Assembly type, characterized by its elevated mounting configuration that positions the rail and block at a greater installation height compared to standard assembly options. This assembly type provides enhanced accessibility for maintenance and adjustment while maintaining the guideway's robust load-bearing capability and precision linear motion, making it the ideal choice for heavy-duty industrial applications such as CNC machining centers and gantry systems where both installation flexibility and high performance are required.
How does the Square Type block perform under multi-directional loading?
Thanks to its balanced, square cross-section, the Square Type block is engineered to distribute load evenly across all directions. When subjected to simultaneous radial, reverse, and lateral forces — which is common in complex machining operations — the block maintains its structural integrity and motion precision without deflection. The precision ball recirculation system within the block further ensures that contact stress is evenly spread across all load-bearing balls, minimizing localized wear and maintaining consistent performance over extended periods of operation, even under the most demanding multi-directional load conditions.
How does the Heavy Load rating affect the design and construction of the guideway?
The Heavy Load rating directly influences several key aspects of the guideway's design and construction. The rail is manufactured with a larger cross-sectional profile and greater wall thickness to resist bending and deflection under high forces. The block is constructed with a higher number of ball circuits and larger-diameter precision balls to distribute the load more effectively across a greater contact area. The raceway geometry is precision-ground to tighter tolerances to ensure even load sharing among all balls during operation. Additionally, the materials used — typically high-carbon chrome steel with surface hardening treatments such as induction hardening — are selected specifically to endure the elevated contact stresses associated with heavy load applications, preventing premature wear and fatigue failure.
What defines the High Assembly type in a Heavy Duty Ball Linear Guideway?
The High Assembly type is defined by its elevated mounting configuration that positions the rail and block at a greater installation height compared to standard assembly options. This increased height provides a larger block body and greater internal capacity, allowing for an enhanced number of load-bearing ball circuits and a deeper raceway profile, which together contribute to superior rigidity, higher load capacity, and improved resistance to dynamic forces during operation.




