
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X295S10AP 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.
The P at the end of LRM12N1X295S10AP marks a precision-grade set: one 295mm stainless rail, 12mm wide, with a single standard-length ball carriage, top-mounted, first hole 10mm from the rail end. Where grade H holds travel straightness to a high standard, grade P tightens it further - the choice for optics and measurement work where wander shows up in the reading.
Precision class does not change the mechanical design. The carriage still rolls on Japanese ISO 3290 G10 balls - the grade covers the balls only - retained so they cannot fall out during normal handling, though the manufacturer cautions that angled fitting or quick carriage swaps can still shed them, so plan a dummy rail for field service. The double-lip seal and outer cover keep grease in and swarf out. Ambient temperature must not exceed 80 C, with short peaks to 100 C. Load and moment ratings are not published for the LRM series; we confirm them for this model against your RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12N1X295S10AP |
|---|---|
| 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 | 295 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. |
| N | Standard carriage. |
| 1X295 | 1 carriage 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, 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.
The bridge of a small measuring microscope slides on rails whose straightness defines the reading; grade P keeps the optical path truer over 295mm than the standard H class.
Where a thin belt or wire tether drags the carriage, preload A keeps running drag low so a small stepper is not robbed of torque; the ball-retainer design eases the occasional carriage inspection.
A mirror or beam-splitter mount sliding 295mm for coarse alignment benefits from P-grade travel; the moment from an offset optic is a rating question, so confirm it with us per model.
Size the axis in this order: first the envelope, then the load. If the load is heavy or overhung, move up to LSH - its catalogue gives dynamic, static and moment ratings per carriage that you can plug into a calculation, something the LRM range does not offer. If travel is short and you need crossed-roller stiffness, look at LGC instead. For this precision set, match: complete guide with rail, 12mm width, standard carriage length, one carriage, 295mm rail, preload A with running clearance, accuracy P, top-mount holes. Note that across the range price scales with rail length and carriage count far more than with rail width, so trimming travel saves more than downsizing the rail. Confirm the load rating with us - we will check it for this model before ordering.
Quick checklist
Choose LRM12N1X295S10AP when the envelope is tight, the duty is light and straightness of travel matters - the P grade here is the precision class of the LRM range. Choose LSH when the load is significant or cantilevered: LSH publishes basic dynamic, static and moment ratings per carriage that you can size from, whereas LRM publishes none and we confirm ratings per model. For short travel where crossed-roller rigidity beats ball smoothness, LGC is the cross-over choice. The two series are separate products and their parts do not interchange.
Rail width 12mm, rail length 295mm, one standard-length carriage, no preload (grade A), accuracy grade P, rail mounted from the top with the first hole 10mm from the end. Assembly torque: M2 screws 58.8 N.cm into steel, 39.2 N.cm into cast iron, 29.4 N.cm into aluminium; M3 screws take 196, 127 and 98 N.cm in the same order. Ambient temperature limit is 80 C, with peaks to 100 C. Re-grease after every 100km of travel or every 3 to 6 months, whichever comes first. Dynamic load, static load and moment ratings are not published for LRM; send your load case and we confirm the values for this 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.