
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X295S10APT 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.
LRM12N2X295S10APT is a complete two-block guide set built for machines where the fasteners must be reached from underneath: the trailing T sets a 295 mm, 12 mm wide stainless-steel rail for bottom-mount fixing, carrying two standard carriages finished to precision grade P.
Grade P only pays off on a good foundation, so prepare the mounting faces by grinding or finish-milling; the catalogue gives mounting-surface specifications per size (Q1, Q2, H1 and corner radius values, listed as a set rather than per named size), and either rail edge may serve as the datum. With two carriages on one rail, put the datum on the same side for both to hold running accuracy. Inside, the carriage keeps the usual LRM features: recirculating balls made to ISO 3290 G10 in Japan, ball retention for safer handling, a double-lip seal and an outer cover over the screw line. The ambient temperature limit is 80 C with transients to 100 C. No load or moment rating is published for this series; tell us the application and we will confirm the numbers for this exact model before you buy.
| Model | Airtac LRM Miniature Linear Guide LRM12N2X295S10APT |
|---|---|
| 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 | 295 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. |
| 2X295 | 2 carriages on a 295 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, 295 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.
In a small semiconductor lab tool, bottom fixing leaves the top face of the 12 mm rail unobstructed for a wafer or sample tray and keeps particle traps off the visible surface.
A short, precision-travel slide nudging a fiber collimator into position, where grade P and a clean lower mounting flange suit a sealed housing.
Two carriages support a light syringe barrel across the 295 mm stroke in a compact adhesive-dispensing cell built into a milled baseplate.
Run through the fit list: complete set, 12 mm rail width, standard-length carriages, count of two, 295 mm rail, preload A (no clearance take-up - freest running, least rigid), accuracy P, bottom-mount, and a confirmed load figure from us since LRM publishes none. If your structure leans on the carriage as a cantilever or the moving mass is real, step across to LSH, which is a bigger guide with published per-carriage dynamic, static and moment ratings - the paper trail LRM lacks. If the axis is short-travel and stiffness is the priority, LGC's crossed-roller layout is the alternative. One more angle: a bottom-mount, precision-grade rail demands a properly prepared seat, so budget the grinding or finish-milling operation into the plan alongside the guide itself.
Quick checklist
This set gives a 12 mm wide, 295 mm long stainless rail in bottom-mount (T) format, two standard carriages, preload A (none) and accuracy P. Mounting-surface specifications (Q1, Q2, H1, corner radius) are listed per size in the catalogue, so quote them as a set. M2 screws torque to 58.8 N.cm in steel, 39.2 in cast iron, 29.4 in aluminium; M3 to 196, 127 and 98 N.cm. Ambient limit is 80 C with transients to 100 C; re-grease every 100 km or every 3 to 6 months. Dynamic load, static load and moment ratings are not published for LRM; we confirm them per model on request.
Choose LRM when the envelope is tight and the duty light - that is exactly what this 295 mm, two-block precision set is drawn for. Choose LSH when you need published numbers: LSH lists dynamic, static and moment ratings per carriage, letting you calculate margins, which LRM's catalogue simply does not do. For a short axis needing crossed-roller stiffness, LGC is the third option. Whichever way you lean, send the RFQ and we will close the load-rating question for the exact model.
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.