
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X395S10BP 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 AirTAC LRM12N1X395S10BP is a one-carriage miniature guide set built around a 12 mm wide stainless-steel rail cut to 395 mm. The single P at the end of the code is the distinguishing feature: this is the precision accuracy grade, one step above H high, specified where straightness of travel over the full 395 mm run matters more than cost. You receive the complete assembly - rail, one standard-length recirculating-ball carriage, and factory-fitted seals - with the rail drilled for conventional top-mount fixing through the carriage-side screw line.
Inside the carriage, the recirculating balls are ISO 3290 G10 grade, Japanese made, and the grade applies to the balls themselves rather than to the guide assembly as a whole. A double-lip seal scrapes oil back and keeps fine dust out, while an outer cover shields the seal strip and the screw holes from larger debris. The common-rail profile means a replacement carriage of the same size and length fits this rail. Keep the ambient temperature under 80 C, with peaks no higher than 100 C, and remember that a 395 mm axis cycling a 200 mm stroke once per second reaches the 100 km re-grease point in roughly three weeks of continuous running - distance, not the calendar, usually triggers the maintenance. Load and moment ratings are not published for this series; the confirmed figure for this exact part comes with our quotation, so include it in your RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12N1X395S10BP |
|---|---|
| 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 |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision grade |
| Preload grade | B — light 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. |
| B | B — light 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.
A P-grade 395 mm axis positions wafer saw pick tips over die trays, where the tighter accuracy grade helps keep the tip aligned across the full travel and the stainless rail resists cleanroom-compatible wiping.
One standard carriage carries a length encoder along a 395 mm span to measure cut harnesses; a single carriage keeps the moving mass low, and the light preload smooths the encoder ride.
A precision-grade single-axis slide drives a glue or conformal-coating nozzle across PCB panels; the double-lip seal holds up against fine particulate near the dispense zone, with re-greasing timed by distance travelled.
Choose this set when the application needs the tighter P precision grade over a long, single-carriage travel. If the load is heavy or hangs off the carriage as a cantilever, look at AirTAC LSH first, because LSH publishes dynamic, static and moment ratings per carriage that you can verify against your duty cycle - LRM offers no such table. For short travels where crossed-roller stiffness is the goal, compare the LGC series. Work through this checklist before ordering: form (this is a complete set, rail included), rail width, carriage length, carriage count, rail length, preload grade (light here - easier to install and smoother, but with more measurable play than C medium), accuracy grade, top-mount versus bottom-mount fixing, and - only if you are replacing a lone carriage rather than buying a set - the pairing code that links carriage to rail. Finish by confirming the load rating with us for this exact model.
Quick checklist
It is a complete set, rail included: a 395 mm long, 12 mm wide stainless rail in top-mount form, one standard-length carriage, light preload (B - smoother and easier to install than the C medium grade, but with a little more play), and P precision accuracy, one grade above H. Fixing screws are M3, torqued to 196 N.cm into steel, 127 N.cm into cast iron or 98 N.cm into aluminium. Ambient temperature must not exceed 80 C (100 C transient peaks) and re-greasing is due every 100 km of travel or every 3 to 6 months. Load, moment and running-parallelism figures are not published for LRM - we confirm the load rating for this exact model on request.
Pick LRM when the envelope is tight and the duty is light - a 12 mm rail with a single standard carriage suits compact stages, small heads and fixtures. Pick LSH when you need published numbers to engineer against: LSH carries per-carriage dynamic load, static load and moment ratings in its catalogue, while LRM publishes none of these, so any LRM selection ends with a load confirmation from us. If your travel is short and the priority is rigidity from crossed rollers rather than recirculating balls, compare LGC. Also note that across our listed LRM range, price tracks rail length and carriage count far more than rail size - trimming travel is usually the cheaper lever than changing size.
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.