
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X470S10BHT 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 LRM12N1X470S10BHT is a factory-matched assembly of one 12 mm wide stainless rail, 470 mm long, and a single standard-length recirculating-ball carriage, specified with light preload (grade B), high accuracy (grade H), a 10 mm end-hole offset and bottom-mount fixings.
Light preload leaves a whisper of internal clearance, so the carriage glides with less drag than the tighter C grade - useful on hand-positioned slides, belt-driven axes and anywhere a small motor should not waste effort against the guide. The 470 mm rail gives roughly 25 mm more travel span than the 445 mm variant while staying comfortably inside the length range carried for size 12, and price across this series follows length and carriage count rather than width. Carriages in the range share a common rail profile, Japanese-made balls graded ISO 3290 G10 run in the raceways, and a double-lip seal plus outer cover defend the grease charge. Mind the published ambient ceiling of 80 C. Since LRM lists no load or moment ratings, ask us with the RFQ and we will confirm the figures for this configuration.
| Model | Airtac LRM Miniature Linear Guide LRM12N1X470S10BHT |
|---|---|
| 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 | 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. |
| 1X470 | 1 carriage on a 470 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. |
| 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 low-power engraver carriage on a belt axis, mounted with the rail kept clear of heat sources so the 80 C ambient ceiling is respected.
A hand-knob stage on an optical breadboard, where light preload keeps the knob effort low while still taking up free play.
Steering tiny stamped parts into a feeder exit track with light, fast strokes that a low-drag carriage keeps easy to drive.
If the axis sees real load or a cantilever, move to LSH, which publishes dynamic, static and moment ratings per carriage so you can do the sums; LRM offers none to compare. Where travel is short and crossed-roller rigidity beats long stroke, LGC is the alternative. For this code confirm: complete set, 12 mm rail width, standard carriage length, one carriage, 470 mm rail, light preload B (the freer-running choice), high accuracy H, bottom-mount direction, and a load rating confirmed with us before ordering. The catalogue tops out at a 1005 mm full-length rail for size 12, so this 470 mm set leaves headroom if the machine grows later.
Quick checklist
Rail width 12 mm; rail length 470 mm; one standard carriage; preload B, light; accuracy H, high; bottom-mount rail; 10 mm end-hole offset. Torque M2 screws to 58.8 N.cm and M3 screws to 196 N.cm into steel, with lower values into cast iron and aluminium. Ambient limit 80 C, peaks to 100 C. The carriage ships greased with Kyodo Yushi PS No. 2; re-grease after 100 km of travel or every 3 to 6 months - at a 200 mm stroke cycled once a second, 100 km arrives in roughly three weeks of continuous running, so the distance usually binds before the calendar. Load and moment ratings are not published for LRM; we confirm them per model.
Pick LRM for tight envelopes and light-duty precision motion, as here: a 12 mm rail with a single standard carriage. Pick LSH when the load is meaningful or overhung, because LSH publishes basic dynamic, static and moment ratings for each carriage that you can size against - LRM publishes none, so the capacity of this 470 mm set must be confirmed with us before ordering. If the travel is short and you need crossed-roller stiffness instead of ball recirculation, LGC is the third option.
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.