
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X470S10CHT 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.
LRM12N1X470S10CHT brings together two deliberate choices: a medium preload (C) carriage for a firmer, play-free travel, and a bottom-mount rail that bolts from underneath through its slots. You get a 12 mm wide stainless rail, 470 mm long, and one standard-length recirculating-ball carriage - a complete assembly, nothing to buy separately.
Handle this set with care during installation: never strike or drop the rail, since accuracy and life can suffer with no visible mark, and although the ball-retention design holds the ISO 3290 G10 graded balls (the grade applies to the balls alone) in place, sliding the carriage on at an angle or swapping it hastily can still shed them - a dummy rail helps. The double-lip seal and outer cover guard the raceways against grease loss and debris. Ambient temperature must not exceed 80 C, with transient peaks to 100 C. Because bottom-mount fasteners torque from inside the slot, check your screw access before the seat is machined - and remember the lower torque values into aluminium. AirTAC publishes no load or moment rating for LRM; we confirm it for this exact model, so put it in the RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12N1X470S10CHT |
|---|---|
| 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 | 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 | C — medium 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. |
| 1X470 | 1 carriage on a 470 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| C | C — medium 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, 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 bench rig cycling laser diode modules under a test station uses the preloaded carriage for repeatable positioning, with the rail hidden below the fixture plate thanks to bottom-mount fastening.
Retrofitting a stereo microscope's focus column with a smooth vertical slide suits this set: medium preload removes backlash so the focus carriage holds its set point.
A compact sensor head traversing above small parcels on a dimensioning bench needs firm, wander-free travel; bottom-mount keeps the top of the rail clear for the sensing path.
Before you commit, confirm the two choices baked into this code suit the machine: medium preload C, which is the rigid but less forgiving option and asks for a clean, ground or finish-milled seat, and bottom-mount T, which needs fastener access from below. Then verify the remaining items: complete set (rail included), 12 mm rail width, standard carriage, one block, 470 mm rail length, high accuracy H. If the application involves heavy or cantilevered loads that demand published sizing data, step up to LSH - it lists per-carriage dynamic, static and moment ratings, which LRM does not, so this model's capacity must be confirmed with us. For short-travel work where crossed-roller stiffness is the priority, compare LGC.
Quick checklist
Included: one 12 mm wide stainless rail, 470 mm long, arranged for bottom-mount fixing, and one standard-length carriage with medium preload (C) and high accuracy grade (H), pre-greased with Kyodo Yushi PS No. 2. There is no pairing code to worry about - that applies only to carriage-only codes, and this is a factory-matched set. Not included: spare carriages (mostly a special order, as only a few carriage-only SKUs are stocked) and any lubrication hardware; top up through the carriage's lubrication hole every 100 km of travel or every 3 to 6 months. Ambient temperature limit is 80 C with peaks to 100 C, and load and moment ratings are not published for LRM - we confirm them per model on request.
The rail fastens from below through its slots, so use short-head screws and torque by material: M3 screws at 196 N.cm into steel, 127 N.cm into cast iron and 98 N.cm into aluminium; M2 screws at 58.8 N.cm into steel, 39.2 N.cm into cast iron and 29.4 N.cm into aluminium. Prepare the mating surface by grinding or finish milling so the rated travel accuracy is achievable, and keep the ambient temperature at or below 80 C in service.
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.