
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X395S10AP 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.
One stainless-steel rail, 12 mm across, 395 mm long, with two long carriages already mounted - that is the LRM12L2X395S10AP complete set. Accuracy is P (precision), one step tighter than the H grade, and the rail mounts from the top through its screw pockets, the usual orientation for a machine table or slider plate. The S10 segment sets a 10 mm hole offset at the rail ends.
The P grade is what you buy this code for: when a measuring or optical axis has to repeat its line, precision travel tolerance earns its premium over H. Because two carriages share this rail, mark the datum face on the same side for both - the manufacturer notes this improves running accuracy. Ball retention keeps the ISO 3290 G10 Japanese balls in the circuit during handling, the double-lip seal manages lubrication and dust, and the outer cover protects the seal strip and screw heads. Keep the ambient at or under 80 C, peaks to 100 C. As with every LRM part, load and moment figures are not published; we confirm them per model - ask us before you commit.
| Model | Airtac LRM Miniature Linear Guide LRM12L2X395S10AP |
|---|---|
| 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 | 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.
| 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. |
| 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.
Precision-grade P travel under a dial indicator or vision probe gives repeatable readings on small turned and milled features, and the long carriages steady the moving bridge.
With preload A the carriage glides freely, so a servo or solenoid can swap filters without fighting stiction, and P accuracy holds each filter square in the beam path.
A 395 mm rail carries a probe head across a well plate or sample tray, and the 80 C ambient ceiling sits comfortably above the internal temperature of a benchtop liquid analyzer.
Size in two directions. Where loads are substantial or overhung, LSH is the honest choice - its catalogue prints per-carriage dynamic, static and moment ratings you can calculate against, something LRM deliberately omits. Where travel is short and stiffness matters more than envelope, LGC's crossed-roller construction is the better match. Checking this code before ordering: it is a complete set (rail included), 12 mm rail width, long carriage, two per rail, 395 mm rail, preload A (no internal clearance taken up - freest motion, easiest fitting), accuracy P, top-mount. Confirm the load rating with us; LRM has no published figures.
Quick checklist
A 12 mm wide rail, 395 mm long, with two long carriages, top-mount, preload A (none) and accuracy P (precision). Carriages ship pre-filled with Kyodo Yushi PS No. 2; top up through the rear lubrication hole every 100 km of travel or every 3 to 6 months, never mixing grease types - charge quantities range from 0.02 to 1.0 cm3 depending on model. Keep ambient at or below 80 C, peaks to 100 C. Load and moment ratings are not published for LRM - we confirm them per model before you order.
Pick LRM when the envelope is tiny and the duty light - that is what this 12 mm, 395 mm set is built for. Pick LSH when you need published numbers to size against: it lists per-carriage dynamic, static and moment ratings, while LRM does not, so its load capacity must be confirmed with us instead. If the axis is short-travel and rigidity matters most, compare LGC's crossed-roller guides. One more lever: within our LRM stock, rail length drives price far more than rail size, so trimming travel often saves more than changing series.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
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.