
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X470S10BH 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.
LRM12L1X470S10BH is a complete miniature linear guide set: one 470 mm stainless-steel rail, 12 mm wide, carrying a single long (L) recirculating-ball carriage. The set arrives assembled, with the mounting holes drilled 10 mm in from each rail end and top-mount fixing, so the screws are reached from above.
The long carriage is the point of this code. Its longer footprint engages more recirculating balls and stretches the bearing span, which helps when a small head or bracket wants to tip as it travels. AirTAC builds the series on a common rail profile shared across LRM carriages, ball retention for safer handling, Japanese-made ISO 3290 G10 balls (the grade applies to the balls only), a double-lip seal and an outer cover over the screw line. Preload B is the light grade: a little clearance removed for steadier motion without much drag. Ambient temperature must stay at or below 80 C, with peaks no higher than 100 C, and re-greasing is due every 100 km of travel or every 3 to 6 months - a distance that arrives quickly, since a 200 mm stroke cycling once a second covers it in roughly three weeks of continuous running. LRM has no published load or moment ratings, so we confirm the figures for this exact model when you send the RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12L1X470S10BH |
|---|---|
| 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 | 1 |
| Rail length | 470 mm |
| 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. |
| L | Long 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 compact SMT pick-and-place head traversing a 470 mm span; the long carriage keeps the head square as it lifts and lowers components.
A small machine-vision camera passing over circuit boards, where light preload B removes slop without dragging the stage.
A bench fixture aligning diodes and optics, where smooth, repeatable low-load travel matters more than raw capacity.
Size up to LSH when the load is substantial or cantilevered: LSH publishes dynamic, static and moment ratings per carriage that you can calculate against, while LRM publishes none. If the travel is short and the mechanism wants crossed-roller rigidity, LGC is the closer mechanical match. Before ordering, work the checklist: complete-set form, 12 mm rail width, long carriage, one block, 470 mm rail, preload B and its installation trade-off, accuracy H, top-mount fixing - and confirm the load rating with us for this exact code. One practical note: long carriages are listed here in as many configurations as the standard length, so specifying one for a tipping load costs you nothing in choice.
Quick checklist
A complete set on a 12 mm wide, 470 mm long stainless-steel rail with one long carriage, light preload B, high accuracy H and top-mount fixing; mounting holes sit 10 mm from each rail end. M3 screws torque to 196 N.cm in steel, 127 N.cm in cast iron and 98 N.cm in aluminium (M2: 58.8 / 39.2 / 29.4 N.cm). Ambient temperature must not exceed 80 C, with transient peaks to 100 C, and re-greasing is due every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM - we confirm them for this model when you enquire.
If the envelope is tight and the load light, this 12 mm LRM set is the natural fit. If the load is substantial or hangs on a cantilever, step up to LSH, which publishes dynamic, static and moment ratings per carriage you can size against; LRM publishes none, so any load figure must be confirmed per model with us. For short travel needing crossed-roller rigidity, compare LGC as well.
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.