
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X470S10BP 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 LRM12N2X470S10BP is a complete AirTAC LRM miniature linear guide set: one 12 mm wide stainless-steel rail, 470 mm long, carrying two standard-length recirculating-ball carriages. Light preload (code B) leaves a small internal clearance so the pair runs with very low drag, and precision grade (P) tightens travel tolerances beyond the high grade. End fixing holes sit 10 mm in from the rail ends and the rail top-mounts, screws going in from above.
AirTAC builds every LRM carriage around ISO 3290 grade G10 balls - a grade for the balls alone, not for the assembly - held by a ball-retention feature so they stay put during handling. A double-lip seal scrapes oil and excludes dust, while an outer cover shields the seal strip and screw heads from larger debris. Ambient temperature must stay at or below 80 C, with transient peaks no higher than 100 C, which matters next to a laser driver board or a warm power supply. AirTAC publishes no dynamic, static or moment rating for LRM, so we confirm the figures for this exact set before you order - send the RFQ and we will return the datasheet values.
| Model | Airtac LRM Miniature Linear Guide LRM12N2X470S10BP |
|---|---|
| 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 | 2 |
| Rail length | 470 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. |
| 2X470 | 2 carriages 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. |
| P | P — precision 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.
The 470 mm rail suits the long axis of a benchtop vision system, and the two-carriage layout resists tipping along the travel so a camera head stays square to the part under it.
Light preload and precision grade P keep the dispense nozzle path repeatable on a small electronics assembly line, where low drag matters more than raw stiffness.
A laboratory autosampler needs quiet, smooth, low-friction motion over a mid-length stroke; the light preload of this set suits a pipetting head that must not jar the tips.
Because LRM carries no published load table, size it by comparison: if the load is substantial or cantilevered, step up to LSH, which lists per-carriage dynamic, static and moment ratings you can calculate against. For short travels where crossed-roller rigidity is the priority, LGC is the closer fit. To lock this set in, check the form (complete set), the 12 mm rail width, standard carriage length, two carriages on a 470 mm rail, light preload B - easier running and kinder to mounting-surface errors - precision accuracy P, and top-mount fixing. Confirm the load rating with us for this specific model before committing. One more planning note: across our stocked LRM sets, nearly the whole price spread comes from rail length and carriage count rather than rail width, so trimming travel trims cost faster than changing size.
Quick checklist
This set uses a 12 mm wide, 470 mm long rail with two standard-length carriages, light preload (B), precision accuracy (P) and top-mount fixing, with end holes 10 mm from the rail ends. Mounting screws torque to 196 N.cm into steel, 127 N.cm into cast iron and 98 N.cm into aluminium for M3, or 58.8 / 39.2 / 29.4 N.cm for M2. Ambient temperature must not exceed 80 C, and re-greasing is due every 100 km of travel or every 3 to 6 months. AirTAC publishes no load or moment rating for LRM, so we confirm the figures for this set on request.
Choose LRM when the envelope is tight and the duty is light, as with this 470 mm twin-block set. Choose LSH when the load is heavy or overhung: LSH publishes per-carriage dynamic, static and moment ratings you can size against, while LRM lists none, so an LRM choice always ends with us confirming the rating for the specific model. For short travels that need crossed-roller stiffness, LGC sits between the two.
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.