
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X395S10APT is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriage. 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.
LRM12N1X395S10APT is a complete size-12 miniature guide built around a 395 mm rail - 25 mm longer than the common 370 mm cut, and a length that exists because AirTAC supplies size-12 rails anywhere up to the 1005 mm catalogue maximum. The rail is stainless steel, 12 mm wide, mounted through its bottom face (the trailing T), and carries one standard-length recirculating-ball carriage, delivered fitted and pre-greased.
The extra length matters in two ways. First, travel: a longer rail extends the usable stroke within the same 12 mm-wide envelope, which is usually cheaper than moving up a guide family - within this programme, price climbs with rail length and carriage count far faster than with rail width. Second, layout: the 10 mm end-hole offset fixes where the first and last mounting holes fall relative to the ends of the run, so the fixing pattern can be drawn before the part arrives. The carriage uses Japanese-made ISO 3290 G10 balls (a ball grade, not an assembly standard), a double-lip seal and an outer cover, and the ambient limit is 80 C with transient peaks to 100 C. As with every LRM code, dynamic and static load ratings and moment ratings are not published - ask us via the RFQ and we will confirm the figures for this specific length and carriage.
| Model | Airtac LRM Miniature Linear Guide LRM12N1X395S10APT |
|---|---|
| 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 | 1 |
| 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.
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X395 | 1 carriage 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, 1 |
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.
Guiding a micro-dispense head along a longer 395 mm axis on a small assembly machine, keeping the guide at 12 mm rail width.
Running a test probe carriage along a wire harness on a longer stroke, with the rail hidden beneath the fixture plate.
Advancing a tray of cuvettes or slides through a benchtop analyzer, where the extra rail length adds stations without widening the frame.
If the payload is heavy or sits on a cantilever, size up to AirTAC LSH, which publishes per-carriage dynamic, static and moment ratings you can calculate against; LRM gives you no published numbers to work from, which is why we confirm them per order. For short travels needing crossed-roller rigidity, step across to AirTAC LGC. Before you commit to this 395 mm set, check off: form - complete set, rail included; rail width 12 mm; standard carriage length; one carriage; rail length 395 mm; end offset 10 mm; preload A (none), the free-rolling grade that is kindest to mounting-surface finish, with B and C offered when you want more rigidity; accuracy P (precision); bottom-mount; and a load rating confirmed with us for this exact configuration.
Quick checklist
Rail: stainless steel, 12 mm wide, 395 mm long, bottom-mount. Carriage: one, standard length. Preload A (none); accuracy P (precision). Screw torques: M2 - 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium; M3 - 196, 127 and 98 N.cm for the same three materials. Ambient limit 80 C, peaks 100 C. Re-grease every 100 km of travel or every 3 to 6 months. Load, moment, running-parallelism and speed limits are not published for LRM; we confirm the load case per model.
S10 is the end-hole offset - the distance from the rail end to the first mounting hole, 10 mm on this code. It sets where your fixings land relative to the ends of travel. In the box you get one stainless steel rail and one standard-length recirculating-ball carriage already fitted and pre-greased with Kyodo Yushi PS No. 2 - a complete set, not a carriage alone. Before first use, wipe the rust-preventive oil off and apply fresh lubricant.
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.