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 LSH20HN3X2485S42.5AN-M6 Linear Guide Rail Specifications
- Model: LSH20HN3X2485S42.5AN-M6
- Series: LSH Heavy Load Precision Series
- Rail Width: 20mm (Standard DIN standard)
- Carriage Type: HN (Double Seals, High Rigidity)
- Rail Length: 2485mm ±0.5mm
- Block Quantity: 3 units pre-mounted
- Mounting Hole Pitch: 42.5mm (AN-type mounting hole configuration)
- Preload Class: Medium Preload (C3 grade)
- Ball Diameter: 3.175mm (G10 grade precision steel balls)
- Dynamic Load Capacity: 14.2kN
- Static Load Capacity: 23.5kN
- Hardness: HRC 58-62 (Chrome Molybdenum Steel)
- Surface Treatment: Black Electrophoresis + Anti-Corrosion Oil
- Seal Material: NBR Rubber (Dual Lip Seals)
- Operating Temperature: -20℃ to 80℃
- Fastener: M6×10mm Stainless Steel Screws (ISO 4762)
- Weight: 7.5kg (rail only), 9.8kg with carriages
- Dimensions: 2485mm(L) × 34mm(W) × 18.5mm(H)
Industrial-grade linear motion solution with hardened raceways and optimized ball recirculation. Features twin-sealed carriages with grease retention grooves, achieving IP54 protection. Precision ground surfaces (Ra 0.8μm) ensure smooth movement with repeatability ±0.005mm/m. Includes pre-drilled mounting holes with counterbores for flush mounting.
- CNC gantry mill Z-axis guidance systems
- Automated warehouse shuttle vertical lifts
- High-speed packaging machine cross beams
- Semiconductor wafer handling robots
- 5-axis 3D printer motion platforms
| Property | Property Value |
|---|---|
| sku | LSH20HN3X2485S42.5AN-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.



