THK SHW17CAM LM Guide Block
The THK SHW17CAM is a low-profile, wide-rail type LM Guide (Linear Motion Guide) from the SHW series, featuring a caged-ball structure. It is designed for high rigidity, exceptional moment resistance (especially Mc), and 4-way equal load capacity, ideal for space-saving, single-rail precision applications.
The THK SHW17CAM is a low-profile, wide-rail type LM Guide (Linear Motion Guide) from the SHW series, featuring a caged-ball structure. It is designed for high rigidity, exceptional moment resistance (especially Mc), and 4-way equal load capacity, ideal for space-saving, single-rail precision applications.
Official Specifications
1. LM Block Dimensions (SHW17CAM)
| Parameter | Value |
|---|---|
| Model Number | SHW17CAM |
| Block Height (M) | 17 mm |
| Block Width (W) | 60 mm |
| Block Length (L) | 51 mm |
| Mounting Bolt Size | M4 × 5 (4 holes) |
| Bolt Pitch (F) | 38 mm |
| Standard Seal | UU (Non-contact side seal) |
| Grease Nipple | PB107 |
| Material | High-carbon chromium bearing steel (Rail/Balls), Cast Iron (Block) |
2. Rail Specifications (SHW17 Series)
| Parameter | Value |
|---|---|
| Rail Height (H3) | 17 mm |
| Rail Width (W1) | 18 mm |
| Number of Ball Rows | 4 rows (2 rows per side) |
| Contact Angle | 45° (4-way equal load) |
| Precision Grade | Normal (Standard) |
| Operating Temperature | -15°C to +80°C |
3. Load & Performance Ratings
| Parameter | Value |
|---|---|
| Basic Dynamic Load Rating (C) | 6.8 kN |
| Basic Static Load Rating (C0) | 8.7 kN |
| Static Permissible Moment (Ma) | 0.14 kN·m |
| Static Permissible Moment (Mb) | 0.14 kN·m |
| Static Permissible Moment (Mc) | 0.25 kN·m |
| Net Weight (Block only) | Approx. 0.16 kg |
Key Features (THK Official)
- Wide, Low-Profile & High Mc MomentThe wide rail and low center of gravity design deliver exceptional rigidity against overturning moment (Mc), making it perfect for compact, space-constrained setups.
- 4-Way Equal Load CapacityThe 45° contact angle provides identical load ratings in radial, reverse-radial, and lateral directions, allowing flexible mounting in any orientation.
- Caged Ball TechnologyIntegrated ball cages eliminate friction between balls, ensure low noise, high-speed movement, and long-term maintenance-free operation.
- Self-Adjusting (Auto-Aligning) CapabilityTHK’s proprietary DF (Double Front) circular-arc groove configuration absorbs mounting errors while maintaining smooth, backlash-free motion under preload.
- Dual-Mount FlangeThe flange features tapped holes for mounting from both top and bottom, offering great installation flexibility.
- Low Dust GenerationThe ball cage retains lubricant effectively and minimizes particle generation, suitable for clean environments.
Typical Applications
- Precision measuring instruments
- Semiconductor manufacturing equipment
- Flat panel display (FPD) production machinery
- Optical alignment systems
- Compact automation modules
- Medical diagnostic devices
