MISUMI SVR28 Linear Guide Block
The MISUMI SVR28 is a medium-load linear guide slide block designed for precision linear motion systems. It features industry-standard dimensions, high rigidity, low friction, and stable positioning performance, suitable for moderate-to-high load applications requiring accurate movement. Equipped with standard side seals and an optional MX lubrication unit, it ensures long-term maintenance-free operation.
The MISUMI SVR28 is a medium-load linear guide slide block designed for precision linear motion systems. It features industry-standard dimensions, high rigidity, low friction, and stable positioning performance, suitable for moderate-to-high load applications requiring accurate movement. Equipped with standard side seals and an optional MX lubrication unit, it ensures long-term maintenance-free operation.
Key Specifications
| Parameter Category | Details |
|---|---|
| Load Ratings | Dynamic Load Rating (C): 12.5 kNStatic Load Rating (Co): 21.3 kNAllowable Moment (MA/MB): 155 N·mAllowable Moment (MC): 232 N·m |
| Material & Hardness | Material: Carbon Steel (Alloy Steel, e.g., SCM)Hardness: 58 HRC or higher |
| Block Dimensions | Height (H): 42 mmWidth (W): 47 mmLength (L1): 56.6 mmMounting Hole: M5 x 7.5Weight (Block): 0.30 kg |
| Rail Specifications | Rail Width: 28 mmStandard Rail Lengths: 160–1960 mm (min. 220 mm for 2-block configuration)Weight (Rail): 2.4 kg/m |
| Accuracy & Clearance | Clearance Class: Standard ClearanceHeight Tolerance: -5 to +2 μmWidth W2 Tolerance: ±100 μmPair Variation of Height H: 20 μm |
| Operating Conditions | Operating Temperature: -20°C to 80°CMax. Running Speed: Up to 2 m/s (smooth ball rolling contact) |
Core Features
- High Rigidity: Optimized 4-row arc groove design evenly distributes loads, enhancing resistance to moment loads.
- Low Friction: Ball-rolling contact minimizes friction, enabling smooth high-speed motion.
- Reliable Protection: Standard side seals and grease-impregnated polyurethane protection case prevent contamination.
- Maintenance-Free Option: MX version includes a built-in lubrication unit for extended service life.
- Easy Assembly: Integrated datum planes and dowel hole options improve positioning efficiency and repeatability.
Variants
- SVR28: Standard type (no lubrication unit)
- SVR28-MX: With MX lubrication unit (long-term maintenance-free)
- SVR28L: Low-temperature black chrome plated
- SVR28G: Grease-lubricated type
Typical Applications
- Automation machinery & robotic arms
- Precision measuring instruments
- Machine tools & semiconductor manufacturing equipment
- Medical equipment & optical devices
Notes
- Blocks and rails are sold as a set; radial clearance and accuracy are guaranteed only for original set combinations.
- Rails cannot be connected end-to-end; ensure alignment with datum lines during installation.
- Pre-lubricated with lithium soap-based grease (Alvania Grease S2 by Showa Shell Sekiyu K.K.).
