2. High Rigidity Four-Directional Equal Load Design: Incorporates 4-row ball circuits with 45° contact angle configuration, achieving optimal two-point contact for bidirectional radial/lateral load capacity. Optional preload application enhances system rigidity when required.
3. Interchangeability: Stringent manufacturing precision ensures dimensional consistency within stable tolerances. Integrated retainer design prevents ball dislodgement, enabling between and matching guideways while preserving operational smoothness, preload integrity, and motion accuracy.
Category: Linear Guides | Brand: AIRTAC | Series: LSH
AirTAC LSH20BK-HL-N-B-M6 Linear Guide Rail Specifications
- Model: LSH20BK-HL-N-B-M6
- Series: LSH Heavy Load Precision Series
- Rail width: 20mm
- Block type: BK (Double Flanged Compact Block)
- Preload level: HL (High Preload, 0.08C)
- Rail length (N): Customizable from 100mm to 4000mm
- Mounting hole spacing (B): 60mm standard pitch
- Fastener specification: M6 mounting screws
- Dynamic load rating (C): 14.3kN
- Static load rating (C0): 22.4kN
- Accuracy grade: Normal grade (±50μm/1000mm)
- Number of blocks per rail: 2 (standard configuration)
- Sealing system: 4-way labyrinth seal with grease retention
- Material: GCr15 bearing steel (HRC 58-62)
- Surface treatment: Black oxide coating (5-8μm)
- Operating temperature: -20℃ to 100℃
- Weight per meter: 3.2kg/m (rail only)
- Block dimensions: 63mm(L) × 34mm(W) × 39mm(H)
- Rail dimensions: 20mm(H) × 20mm(W) × [custom length]
- Protection rating: IP54 (standard seals)
Industrial-grade linear motion solution featuring optimized ball circuit design for high moment resistance and vibration damping. The HL preload configuration ensures minimal deflection under heavy cutting forces. Compatible with automatic lubrication systems through built-in grease nipples.
- CNC gantry mill Z-axis vertical movement
- Automated pallet shuttle systems in warehouses
- High-precision laser cutting machine X-Y stages
- Semiconductor wafer handling robots
- Injection molding machine ejector mechanisms
| Property | Property Value |
|---|---|
| sku | LSH20BK-HL-N-B-M6 |
| Slider Width | <20mm> |
| Slide Block Type | Square Body |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.



