Airtac LRM Miniature Linear Guide LRM12L2X395S10APT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X395S10APT 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
- AccuracyP — precision 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 LRM12L2X395S10APT
The LRM12L2X395S10APT is a precision-grade miniature guide set for designs that mount the rail from below: a 12 mm wide stainless-steel rail, 395 mm long, running two long carriages. Counterbored fixing holes open underneath, leaving an uninterrupted top deck where a worktable, sensor bar or cable duct can sit. End holes are offset 10 mm (S10).
Accuracy here is P, so the surface beneath the rail deserves equal care - the seat should be ground or finish-milled, and the catalogue's mounting-surface specifications (corner radii, step heights and depth allowances) are listed per size; we will supply the size-12 figures on request. Ball retention keeps the ISO 3290 G10 Japanese balls in place while you position the carriages, a double-lip seal manages grease and dust, and an outer cover shields the seal strip and screw heads. Do not exceed an 80 C ambient, with 100 C as the transient ceiling. Load and moment ratings are not published for LRM; we confirm them for this specific configuration through the RFQ.
Airtac LRM Miniature Linear Guide LRM12L2X395S10APT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X395S10APT |
|---|---|
| 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 (spliced sections) |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision 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 LRM12L2X395S10APT
| 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. |
| A | A — no preload — higher preload raises rigidity and tightens how flat the mounting surface must be. |
| P | P — precision 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 LRM12L2X395S10APT Is Used
Semiconductor back-end inspection station
A vision head rides two long carriages over trays of packaged dies; the precision P grade keeps the optical axis true from stroke to stroke inside a compact inspection cell.
Micro-dispensing axis for electronics encapsulation
Bottom-mounting hides the rail beneath a dispensing deck, and the smooth, preload-free travel lets a fine needle follow bead paths without jerking or free play.
Retrofit of a legacy measuring jig
When rebuilding an old jig whose base has recessed pockets, the bottom-mount rail drops in from below; a precision set restores travel accuracy the original lost to wear.
Is the Airtac LRM Miniature Linear Guide LRM12L2X395S10APT the Right Guide?
For a heavy or cantilevered axis, move up to LSH: it is a larger series with published per-carriage dynamic, static and moment ratings you can actually size against, which LRM does not provide. For short travel where crossed-roller rigidity beats ball recirculation, look at LGC. Match this code against your drawing: complete set (rail included), 12 mm rail, long carriages, two of them, 395 mm rail length, preload A (none - simplest to install, least resistance to play), accuracy P, bottom-mount orientation. The load rating must be confirmed with us per model before you commit.
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 LRM12L2X395S10APT FAQ
Rail 12 mm wide and 395 mm long, two long carriages, accuracy P (precision), preload A (none), bottom-mount format with a 10 mm end-hole offset. Fix with M3 screws - 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminium - into a ground or finish-milled seat, and put the datum on the same side for both carriages to improve running accuracy. The ambient ceiling is 80 C with 100 C transient peaks. Re-grease every 100 km or every 3 to 6 months. No load or moment rating is published for LRM; we confirm it for this model on request.
Yes for one axis: the 395 mm rail with both long carriages fitted. The T changes only the mounting direction - fixing holes open underneath for a flush top deck - so plan the tapped holes and screw access in the base plate before machining. If you later need a replacement carriage, the BK carriage-only format is the route, but we stock very few carriage-only SKUs, so expect a special order and handle the swap carefully: insert square, never force it, and note balls can still escape despite the retention design.
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 LRM12L2X395S10APT
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.