THK HSR45LC LM Block
The THK HSR45LC is a heavy-duty, long-type, flanged LM block from THK's standard HSR series of full-ball linear motion guides. Engineered for exceptional rigidity and load capacity, it features a 4-way equal load design and is ideal for precision machinery requiring stable, high-load linear movement.
The THK HSR45LC is a heavy-duty, long-type, flanged LM block from THK's standard HSR series of full-ball linear motion guides. Engineered for exceptional rigidity and load capacity, it features a 4-way equal load design and is ideal for precision machinery requiring stable, high-load linear movement.
Official Specifications
1. LM Block (HSR45LC) Dimensions
| Parameter | Value |
|---|---|
| Model Number | HSR45LC |
| Block Height (M) | 60 mm |
| Block Width (W) | 120 mm |
| Overall Block Length (L) | 170.8 mm |
| Mounting Bolt Size (S) | M12 (4 holes) |
| Mounting Bolt Pitch (F) | 105 mm |
| Grease Nipple | B-PT1/8 |
| Standard Seal Type | UU (Non-contact side seals) |
| Material | High-carbon chromium bearing steel (Rail/Balls), Cast Iron (Block) |
2. Rail (HSR45) Specifications
| Parameter | Value |
|---|---|
| Rail Height (H3) | 45 mm |
| Rail Width (W1) | 45 mm |
| Number of Ball Rows | 4 rows (2 rows per side) |
| Contact Angle | 45° (4-way equal load) |
| Precision Grade | Standard (Normal Grade) |
| Operating Temperature | -10°C to +100°C |
3. Load & Performance Ratings
| Parameter | Value |
|---|---|
| Basic Dynamic Load Rating (C) | 82.2 kN |
| Basic Static Load Rating (C0) | 101.0 kN |
| Static Permissible Moment (Ma) | 10.4 kN·m |
| Static Permissible Moment (Mb) | 8.2 kN·m |
| Net Weight (Block only) | Approx. 6.6 kg |
Key Features
- Superior Heavy-Load CapacityAs a long-block variant (LC), the HSR45LC features an extended length compared to the standard HSR45C, significantly increasing its load ratings and rigidity for heavy-duty applications.
- 4-Way Equal Load DesignThe 4-row, 45° contact angle configuration provides equal load capacity in radial, reverse-radial, and lateral directions, ensuring stable performance in any mounting orientation.
- High Precision & Self-AdjustingTHK's proprietary Gothic arch groove design offers excellent self-adjusting capability, absorbing installation errors and maintaining backlash-free, smooth motion.
- Flanged (L-Type) BlockThe standard flanged block allows for secure mounting via bolts from above, offering high stability and ease of installationTHK.
- Durable & Low MaintenanceEquipped with standard UU non-contact seals for dust protection. The integrated ball retainer prevents steel balls from falling out when the block is removed from the rail.
Typical Applications
- Machine tools (Milling machines, Lathes)
- Heavy-duty industrial robots
- Precision measuring instruments
- Injection molding machines
- Large-scale automation equipment
- Handling and conveying systems
