Airtac LRM Miniature Linear Guide LRM12N2X395S10AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X395S10AHT 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 lengthStandard carriage
- Carriages2
- Rail length395 mm
- AccuracyH — high grade
- PreloadA — no 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 LRM12N2X395S10AHT
LRM12N2X395S10AHT is the bottom-mount version of this 12 mm guide set: a 395 mm stainless-steel rail carrying two standard-length ball carriages, with the fixing holes tapped so the screws enter from underneath. Nothing changes above the rail - preload A (none) and accuracy H stay the same - but your mounting plate needs the tapped pattern machined from below.
A bottom-mount rail is the answer when the screws cannot be reached from above or when the working face must stay clear of fastener heads; the outer cover on each carriage helps there too, hiding screws and shielding the double-lip seal strip. The balls are ISO 3290 G10 grade, Japanese made - that grade covers the balls only - and the ball retainer keeps them captive during normal handling, though the maker warns that offering a carriage on at an angle or swapping it hastily can still drop balls. Keep ambient temperature at or under 80 C, peaks no higher than 100 C. Because LRM carries no published load or moment ratings, we confirm the figures for this model through the RFQ.
Airtac LRM Miniature Linear Guide LRM12N2X395S10AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X395S10AHT |
|---|---|
| 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 | Standard carriage |
| Carriages supplied | 2 |
| Rail length | 395 mm (spliced sections) |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high grade |
| Preload grade | A — no 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 LRM12N2X395S10AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X395 | 2 carriages on a 395 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| A | A — no 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 LRM12N2X395S10AHT Is Used
Flat-panel defect inspection gantry
A camera carriage sweeping across flat-panel display glass in an inline defect scanner, where the bottom-mount rail keeps the top of the deck free of screw heads under the optics.
PCB test fixture shuttle
A shuttle carrying loaded PCBs between a conveyor stop and a flying-probe tester, guided on a 12 mm rail sized for a compact machine frame with two-carriage support along the travel.
Microfluidic dispense gantry
A low-profile dispense axis on a microfluidic cartridge filling machine, where an underside-tapped rail suits a frame that can only be fastened from below.
Is the Airtac LRM Miniature Linear Guide LRM12N2X395S10AHT the Right Guide?
Because this is a bottom-mount rail, plan the mating surface early: it must be ground or finish-milled to achieve the rated travel accuracy, and the tapped fixing pattern has to be machined from the underside of the seat. On sizing, remember the split between ranges: LSH publishes dynamic, static and moment ratings per carriage and is the safer step up when the load is heavy or cantilevered, while LGC crossed-roller guides take over when travel is short and rigidity dominates.
Before you commit, work the checklist: complete set form, 12 mm rail width, standard carriage length, two carriages, 395 mm rail length, preload A (none - easy to install, least resistance, least rigid), accuracy H, bottom-mount direction - and let us confirm the load and moment rating for this exact model via RFQ.
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 LRM12N2X395S10AHT FAQ
Rail width 12 mm, rail length 395 mm, two standard-length carriages, preload A (none), accuracy H, bottom-mount fixing, 10 mm end-hole offset. For fastening: M2 screws take 58.8 N.cm into steel, 39.2 N.cm into cast iron, 29.4 N.cm into aluminium, while M3 screws take 196, 127 and 98 N.cm respectively. Ambient limit is 80 C with transient peaks to 100 C, and re-greasing is due every 100 km of travel or every 3 to 6 months. Dynamic, static and moment load ratings are not published for LRM - we confirm them for this exact set, so include the RFQ in your sourcing step.
Choose LRM when the envelope is tight and the duty is light: here you get a 12 mm rail, 395 mm long, with two standard carriages and high accuracy in a package that starts smaller than any LSH size. Choose LSH when the load is substantial or overhung, because LSH publishes dynamic, static and moment ratings per carriage that you can size against, while LRM publishes no ratings and we confirm each model individually. For short travel where crossed-roller rigidity matters more than reach, look at LGC. Either way, send the RFQ and we will confirm the rating for your case.
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 LRM12N2X395S10AHT
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.