Airtac LRM Miniature Linear Guide LRM12N1X77S8.5AH
2. Anti-drop ball bearing retention mechanism for simplified installation and replacement
3. Japanese-manufactured steel balls ensuring superior sphericity and wear resistance (ISO3290 G10 compliant)
4. Enhanced oil-scraping wipers and upgraded dust-proof sealing system
5. Streamlined profile with concealed fasteners protecting sealing strips and eliminating large particulate contamination
Category: Linear Guides | Brand: AirTAC | Series: LRM
AirTAC LRM12N1X77S8.5AH Micro Linear Guide Rail Specifications
- Model Code Breakdown: LRM12-N1-X77-S8.5-AH
- Rail Type: Miniature precision linear guide with 4-row ball recirculation
- Rail Width: 12mm (nominal size)
- Carriage Length: 35mm (standard)
- Total Travel Length: 77mm ±0.2mm
- Preload Class: Medium preload (C0 grade)
- Dynamic Load Capacity: 1,200N (C)
- Static Load Capacity: 2,400N (C0)
- Accuracy Grade: Normal grade (N)
- Ball Diameter: 1.5875mm (1/16")
- Material: High-carbon chromium bearing steel (SUJ2 equivalent)
- Surface Treatment: Black oxide coating (3-5μm)
- Sealing: Dual-side wiper seals + end seals (S8.5 suffix)
- Mounting Hole Pattern: 8.5mm center-to-center (AH designation)
- Operating Temperature: -20℃ to 100℃
- Lubrication: Pre-lubricated with AKT-A4 grease
- Weight: 0.45kg ±5% (complete assembly)
- Dimensions: 112mm(L) × 12mm(W) × 15mm(H) (rail only)
- Carriage Height: 15mm from mounting surface
- IP Rating: IP54 (dust protected & splash resistant)
Ultra-compact linear motion solution designed for space-constrained precision applications. Features hardened raceways and optimized ball path geometry for smooth motion with ≤0.005mm repeatability. The corrosion-resistant coating and multi-lip seals ensure reliable performance in cleanroom or mildly contaminated environments.
- Medical device positioning stages (e.g., DNA sequencers)
- Semiconductor wafer inspection equipment
- High-speed pick-and-place PCB assembly robots
- Optical lens adjustment mechanisms
- Laboratory automation sample handlers
Installation Tip:
Use 2.5Nm torque for M3 mounting screws. Align rails within 0.05mm/m using precision level.
For maximum lifespan, replenish grease every 100km travel distance using AKT-A4 equivalent.
| Property | Property Value |
|---|---|
| sku | LRM12N1X77S8.5AH |
| Slide Rail Width | 12mm |
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.