
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X470S10AHT 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.
The LRM12L2X470S10AHT is a complete AirTAC LRM miniature linear guide set: one 12 mm wide stainless-steel rail, 470 mm long, carrying two long (L) recirculating-ball carriages. The trailing T in the code means the rail is drilled for bottom-mounting, so it is clamped from underneath and no screw heads sit proud on the running surface. The set arrives pre-assembled and pre-greased.
Two long carriages on one rail give a wide bearing span, which helps resist tipping along the direction of travel, and the long body spreads the load over more recirculating balls than a standard carriage would. The balls are ISO 3290 grade G10, Japanese made; the double-lip seal scrapes oil back and excludes dust, while the outer cover hides the fixings and shields the seal strip. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C. AirTAC publishes no load or moment rating for LRM, so the figures for this exact set are confirmed per model - send the RFQ and we will come back with them.
| Model | Airtac LRM Miniature Linear Guide LRM12L2X470S10AHT |
|---|---|
| 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 | Long carriage |
| Carriages supplied | 2 |
| Rail length | 470 mm (spliced sections) |
| 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. |
| L | Long carriage. |
| 2X470 | 2 carriages on a 470 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, 470 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.
A Z-axis head lifting small electronic components benefits from the wide span of two long carriages, which resists the tipping moment as the head changes direction at the pick point.
Sample positioning under a benchtop microscope needs smooth, high-accuracy travel in a small envelope, and the underslung rail keeps the top surface clear for the specimen holder.
A 470 mm rail spans a compact XY stage for light-duty laser marking or dot-peen marking of serial plates, with both carriages sharing one straight reference edge.
Size upward when the load is substantial or overhung: the LSH series publishes per-carriage dynamic, static and moment ratings you can calculate against, which LRM does not, so a cantilevered head is safer specified there. For short travel where crossed-roller rigidity matters more than stroke, step across to LGC instead. Checklist for this set: form complete, 12 mm rail, long carriage, two blocks, 470 mm rail, preload A (free-sliding but with internal play), accuracy H, bottom-mount. Confirm the load rating with us before committing - an RFQ gets a figure for this exact model.
Quick checklist
Rail width 12 mm; rail length 470 mm; two long carriages; preload A (none); accuracy grade H (high); bottom-mount rail fixing. Screw torques: M2 to 58.8 N.cm in steel, 39.2 N.cm in cast iron, 29.4 N.cm in aluminium; M3 to 196 N.cm in steel, 127 N.cm in cast iron, 98 N.cm in aluminium. Ambient temperature must stay at or below 80 C with peaks to 100 C. Re-grease every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM - we confirm them per model, so include this code in an RFQ.
It is a complete set: the 470 mm rail and both long carriages, assembled and pre-greased. No separate pairing code is needed on a set. Bear in mind for the future that AirTAC sells carriages on their own in only a handful of configurations, so a field replacement usually becomes a special order - and because even the ball-retention design can drop balls if a carriage is fitted at an angle or swapped hastily, plan on a dummy rail if carriage swaps are part of your maintenance routine.
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.