
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X45S10AH 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.
This is the complete LRM12N1X45S10AH miniature linear guide set from AirTAC: one 45 mm length of 12 mm wide stainless-steel rail with one standard-length recirculating-ball carriage, a 10 mm end-hole offset, no preload and high (H) accuracy, prepared for top-mount fixing. The box holds the rail and carriage assembled as one unit and nothing else; screws and mounting hardware come from your own stock.
Underneath the small envelope sit the features AirTAC builds into every LRM: a common rail profile shared by all LRM carriages, ball retention that stops the balls scattering during handling, ISO 3290 G10 Japanese balls chosen for roundness and wear, a double-lip seal for grease retention and dust exclusion, and an outer cover that hides the fixing screws and shields the seal strip. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C. Load and moment ratings are not published for this series, so we confirm the figure for your exact model before you order - send the RFQ and we will come back with it.
| Model | Airtac LRM Miniature Linear Guide LRM12N1X45S10AH |
|---|---|
| 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 | 45 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high 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. |
| 1X45 | 1 carriage on a 45 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. |
| H | H — high grade. |
| This order | Complete guide set |
|---|---|
| Rail | Yes, 45 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 benchtop camera inspection stage built around two short axes: 45 mm of travel is enough for field-of-view stepping under a lens, and the no-preload A grade keeps the stage gliding freely during manual framing.
Aligning a laser or fiber coupler calls for fine, repeatable nudges over a short span. A 12 mm stainless rail with a single standard carriage gives a clean one-axis slide that fits inside crowded optical layouts.
Mounting a focusing lens or sensor on a short trim slide lets an operator set focus once and lock it. High accuracy H keeps the axis true over the 45 mm of travel without over-constraining the design.
Size across the range first. If the load is substantial or hangs off a cantilever, step up to AirTAC LSH, which publishes per-carriage dynamic, static and moment ratings you can plug straight into a calculation; LRM gives you none of those numbers on paper. If travel is short and the job wants crossed-roller rigidity, LGC is the better cross-grade match.
Before committing, tick every box: complete set form (rail included, not a carriage-only code), 12 mm rail width, standard carriage, one carriage, 45 mm rail, preload A (freest running and easiest to align), accuracy H, top-mount fixing, and a load rating confirmed with us before ordering. A 45 mm rail like this is also the affordable end of the range - stocked LRM12 sets span roughly $66 to $831, and rail length is what drives that spread, not rail width.
Quick checklist
Rail width 12 mm, rail length 45 mm, one standard-length carriage, preload A (none) and accuracy grade H, fixed from the top with a 10 mm end-hole offset. Screw torques: M2 at 58.8 N.cm into steel, 39.2 into cast iron and 29.4 into aluminium; M3 at 196, 127 and 98 N.cm respectively. Keep ambient temperature at or below 80 C, with transient peaks to 100 C, and re-grease every 100 km of travel or every 3 to 6 months, whichever comes first. Basic dynamic and static load ratings and moment ratings are not published for the LRM series; we confirm the figures for this exact model before you order - just send the RFQ.
LRM is the small end of the range, chosen for size, precision and smooth running in light-duty positioning. If your load is heavy, cantilevered or subject to overturning moments, move up to LSH: that series publishes per-carriage dynamic, static and moment ratings you can size against, which LRM does not offer on paper. For short travel where crossed-roller rigidity matters more than stroke, LGC is the cross-grade alternative. Either way, send us the load, moment and duty cycle and we will confirm the right series and 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.