THK SVS35 Super-Heavy Load LM Guide Block
The THK SVS35 is a heavy-duty, 4-way equal load caged-ball LM Guide (Linear Motion Guide) from the SVS series, engineered for high-rigidity, ultra-high load capacity and exceptional damping performance. Optimized for machine tools and heavy industrial machinery, it delivers stable, precision linear motion under extreme loads and harsh conditions.
The THK SVS35 is a heavy-duty, 4-way equal load caged-ball LM Guide (Linear Motion Guide) from the SVS series, engineered for high-rigidity, ultra-high load capacity and exceptional damping performance. Optimized for machine tools and heavy industrial machinery, it delivers stable, precision linear motion under extreme loads and harsh conditions.
Official Specifications
1. Standard Block Dimensions (SVS35C / SVS35R)
| Parameter | Value (C Type: Flange) | Value (R Type: Narrow) |
|---|---|---|
| Model Number | SVS35C | SVS35R |
| Block Height (M) | 48 mm | 44 mm |
| Block Width (W) | 100 mm | 70 mm |
| Block Length (L) | 109.5 mm | 109.5 mm |
| Mounting Bolt Size | M10 (4 holes) | M8×12 (4 holes) |
| Bolt Pitch (L1) | 79 mm | 79 mm |
| Standard Seal | UU (Non-contact side seal) | UU (Non-contact side seal) |
| Grease Nipple | B-M6F | B-M6F |
| Material | High-carbon chromium bearing steel (Rail/Balls), Cast Iron (Block) | High-carbon chromium bearing steel (Rail/Balls), Cast Iron (Block) |
| Operating Temperature | -15°C to +80°C | -15°C to +80°C |
2. Rail Specifications (SVS35 Series)
| Parameter | Value |
|---|---|
| Rail Height (H3) | 35 mm |
| Rail Width (W1) | 52 mm |
| Number of Ball Rows | 4 rows (2 rows per side) |
| Contact Angle | 45° (4-way equal load) |
| Raceway Design | Deep circular-arc groove (near ball diameter curvature) |
| Precision Grade | Normal (Standard), H (High), P (Precision) |
| Preload Options | Normal (no symbol), C1 (Light), C2 (Medium) |
3. Load & Performance Ratings (Standard Block)
| Parameter | Value |
|---|---|
| Basic Dynamic Load Rating (C) | 76.4 kN |
| Basic Static Load Rating (C0) | 108 kN |
| Static Permissible Moment (Ma) | 4.12 kN·m |
| Static Permissible Moment (Mb) | 4.12 kN·m |
| Static Permissible Moment (Mc) | 6.18 kN·m |
| Net Weight (Block only) | Approx. 3.1 kg (R), 3.7 kg (C) |
| Rail Weight | Approx. 5.8 kg/m |
4. Long Block Dimensions (SVS35LC / SVS35LR)
| Parameter | Value (LC Type) | Value (LR Type) |
|---|---|---|
| Model Number | SVS35LC (Long Flange) | SVS35LR (Long Narrow) |
| Block Length (L) | 135 mm | 135 mm |
| Bolt Pitch (L1) | 104.5 mm | 104.5 mm |
| Dynamic Load Rating (C) | 90.6 kN | 90.6 kN |
| Static Load Rating (C0) | 137 kN | 137 kN |
| Net Weight (Block only) | Approx. 4.4 kg | Approx. 3.8 kg |
Key Features
- Extreme Rigidity & High Load CapacityThe deep circular-arc raceway design significantly increases ball contact area under load, providing exceptional rigidity and ultra-high 4-way equal load capacity for heavy machining and pressing operations.
- Superior Damping & Vibration ResistanceOptimized ball-groove contact delivers enhanced damping performance, effectively reducing chatter during heavy cutting and improving workpiece surface finish.
- Caged Ball TechnologyIntegrated ball cages eliminate metal-to-metal ball friction, ensuring low noise, high-speed travel, excellent lubricant retention, and long-term maintenance-free operation.
- 4-Way Equal Load RatingThe 45° contact angle design provides identical load capacity in radial, reverse-radial, and lateral directions, offering maximum design flexibility for any mounting orientation.
- High Precision & DurabilityPrecision-ground raceways and high-hardness steel ensure minimal wear, consistent positioning accuracy, and extended service life under extreme loads.
- Excellent Dust ProtectionStandard side seals and compatibility with THK's LaCS (Multi-layer Contact Scraper) provide superior contamination resistance, maintaining performance in harsh, dusty environments.
Typical Applications
- Machine Tools (Machining centers, milling machines, grinders, boring machines)
- Heavy-duty industrial machinery & press machines
- Large robotic arms & heavy positioning systems
- Die-casting & injection molding machines
- Precision measuring instruments
- Woodworking machinery
