Airtac LRM Miniature Linear Guide LRM12L2X395S10BH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X395S10BH is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriages. It is the small end of the range, for light-duty precision positioning in a tight envelope — compact stages, small pick-and-place heads and inspection fixtures.
- SeriesLRM
- Supplied asComplete guide set
- SizeLRM12
- Rail width12 mm
- Carriage lengthLong carriage
- Carriages2
- Rail length395 mm
- AccuracyH — high grade
- PreloadB — light preload
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac LRM Miniature Linear Guide LRM12L2X395S10BH
The LRM12L2X395S10BH is a complete miniature guide: a 395 mm stainless-steel rail, 12 mm wide, with two long (L) carriages mounted on it, drilled for top mounting with a 10 mm end-hole offset. Nothing else is needed - rail and both carriages arrive as one working unit.
This configuration is tuned for smoothness rather than maximum stiffness. Light preload (grade B) leaves the ball circuit freer than grade C, so running drag stays low and motion feels glassy - the better choice when the mechanism is hand-positioned or driven by a small motor. Accuracy is H (high), the standard precision option on LRM. The long carriage spreads the ball contact along a greater length, which helps when a mounted part wants a steadier span. Inside, the balls are Japanese-made to ISO 3290 G10 - that grade covers the balls alone, not the assembly - protected by a double-lip seal beneath an outer cover that also hides the fixing screws. Keep the ambient at or under 80 C, peaks to 100 C, which is worth checking if this guide runs beside a heater, an oven door or a laser. Load and moment ratings are not published for LRM; ask us and we confirm the numbers for this exact model before you order.
Airtac LRM Miniature Linear Guide LRM12L2X395S10BH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X395S10BH |
|---|---|
| Series | LRM Series Miniature Linear Guide |
| Supplied as | Complete guide set |
| Construction | Recirculating ball, stainless-steel rail, common-rail design |
| Size code | LRM12 |
| Rail width | 12 mm |
| Carriage length | Long carriage |
| Carriages supplied | 2 |
| Rail length | 395 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high grade |
| Preload grade | B — light preload |
| Mounting screws | M2 or M3 rail screws depending on size |
| Lubrication | Pre-filled with Kyodo Yushi PS No. 2; top up through the rear lubrication hole |
| Ambient temperature | Up to 80 °C ambient, 100 °C transient peak |
| Interchangeability | LRM carriages fit LRM rails of the same model |
Specifications follow the official AirTAC LRM catalogue. The catalogue does not publish load or moment ratings, running parallelism, speed limits, or carriage base material for LRM. We will not quote a figure we cannot source — ask us and we will confirm it for your model.
Model Code: Airtac LRM Miniature Linear Guide LRM12L2X395S10BH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X395 | 2 carriages on a 395 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| B | B — light preload — higher preload raises rigidity and tightens how flat the mounting surface must be. |
| H | H — high grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 395 mm |
| Carriage | Yes, 2 |
Rail and carriage(s) supplied together, matched as a set. If you are not sure which form you need, send us the machine or the original part number and we will confirm it before you order.
Where the Airtac LRM Miniature Linear Guide LRM12L2X395S10BH Is Used
Laboratory dispensing axis
A pipetting or micro-dispensing head travelling a 395 mm stroke in a lab automation deck, where light preload keeps the drive motor small and the motion free of stiction.
Optical filter changer
A slide carrying filter wheels between a light source and a detector; the long carriage steadies the offset load of the wheel assembly while grade H accuracy keeps the optical axis aligned.
Small parts feed shuttle
A lightweight shuttle presenting components to a bench assembly operator - two carriages on one rail resist tipping along the travel, and the low-drag preload suits frequent starts.
Is the Airtac LRM Miniature Linear Guide LRM12L2X395S10BH the Right Guide?
Where the load is meaningful or cantilevered out from the carriage, move up to AirTAC LSH - it publishes per-carriage dynamic, static and moment ratings you can calculate against, which LRM does not. For short strokes needing crossed-roller rigidity, AirTAC LGC is the cross-series alternative. Stay with this SKU when a 395 mm travel, low-friction running and high accuracy in a 12 mm rail is the fit. Checklist: complete set form, 12 mm rail width, long carriage, 2 carriages, 395 mm rail, preload B (light - smooth, slightly less rigid), accuracy H, top-mount rail, and a load rating confirmed with us first. A useful sourcing note: long carriages are stocked as deeply as standard ones in this range, so specifying the L carriage for a tipping load costs nothing in availability.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Load and moment confirmed with us
- ✓ Travel length and mounting space
- ✓ Accuracy grade and preload
- ✓ Mounting surface ground or finish-milled
- ✓ Pairing code, if replacing a part
Installation & Maintenance Notes
- check Mounting surface must be ground or finish-milled.
- check Torque the rail screws per the recommended figures, in sequence.
- check Keep the mounting corner radius inside the stated R maximum.
- check Do not angle the carriage onto the rail; balls can drop out.
- check Drive the supplied bolt caps into the mounting holes.
- check Re-grease every 100 km of travel or every 3–6 months.
- check Installation by qualified personnel per AirTAC docs.
Airtac LRM Miniature Linear Guide LRM12L2X395S10BH FAQ
Complete set: 12 mm stainless rail, 395 mm long, two long carriages, preload B (light), accuracy H (high), top-mount mounting with a 10 mm end-hole offset. Screws: M3 to 196 N.cm in steel, 127 N.cm in cast iron, 98 N.cm in aluminium; M2 to 58.8 N.cm in steel. Re-grease every 100 km of travel or every 3 to 6 months, and keep ambient temperature at or below 80 C with peaks to 100 C. LRM publishes no load or moment ratings - the figures are confirmed per model, so send the RFQ and we will size the application with you.
LRM is the small end of the range, chosen for size, precision and smooth running in light-duty positioning - exactly what a 12 mm rail with a 395 mm stroke delivers. If the load is substantial or sits on a cantilever, LSH is the safer series because it publishes per-carriage dynamic, static and moment ratings you can size against; LRM has no published ratings, which is why we confirm them per model. For short travels demanding crossed-roller rigidity, compare AirTAC LGC. If in doubt, describe the load and duty cycle to us and we will confirm the right series.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LRM Miniature Linear Guide LRM12L2X395S10BH
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours. We can also confirm the load and moment rating for this model.