
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X500S10AH 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.
LRM12N1X500S10AH is a complete AirTAC LRM miniature linear guide set: one 500 mm stainless-steel rail, 12 mm wide, drilled and counterbored for top mounting, with a single standard-length (N) recirculating-ball carriage already fitted. It arrives as one matched assembly, pre-greased and ready to bolt down.
Inside the carriage, Japanese-made balls rated ISO 3290 G10 - a grade that applies to the balls only, not to the guide assembly - run a recirculating circuit held by a ball-retention design, behind a double-lip seal and an outer cover that shields the seal strip and hides the screw line. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C. At 500 mm this rail is roughly half the 1005 mm catalogue maximum for size 12, giving useful travel without changing frame size - and note that across this range it is rail length, not rail width, that moves the price. Load and moment ratings are not published for LRM, so we confirm the figures for this exact model when you send an RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12N1X500S10AH |
|---|---|
| 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 | 500 mm |
| 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. |
| N | Standard carriage. |
| 1X500 | 1 carriage on a 500 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, 500 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 500 mm travel axis carrying a lightweight vacuum head that places 0402 and 0603 components on prototype boards - a single carriage keeps the head side of the gantry simple and the 12 mm rail fits a slim beam.
Shuttling a sampling needle between vial racks on a compact liquid handler, where smooth, grease-retained travel matters more than capacity and 500 mm spans a full rack row.
A light pusher blade on a compact feeder that nudges nylon spacers off a vibratory bowl track; the ball-retention design tolerates the occasional carriage swap during changeovers.
Step up to LSH when the load becomes substantial or overhangs the carriage: LSH publishes per-carriage dynamic, static and moment ratings you can calculate against, which LRM does not, so any cantilevered or heavy duty belongs on LSH. Where travel is short but the stage must not flex, LGC crossed-roller guides give more rigidity in the same compact envelope. Before ordering, check the whole code against your drawing: complete set (not carriage-only), 12 mm rail width, standard N carriage, one carriage, 500 mm rail, preload A (none - the smoothest running and most forgiving to install), high accuracy H, top-mount screw holes. Mounting surfaces should be ground or finish-milled to reach the rated travel accuracy. Send us the applied loads and we will confirm the rating for this model before you commit.
Quick checklist
This set is a 12 mm wide stainless-steel rail, 500 mm long, with one standard-length (N) carriage, no preload (grade A), high accuracy (H) and top-mount holes offset 10 mm from the rail ends. M3 mounting screws torque to 196 N.cm in steel, 127 N.cm in cast iron and 98 N.cm in aluminium. Ambient temperature must not exceed 80 C, with peaks to 100 C. Carriages ship pre-greased with Kyodo Yushi PS No. 2; re-grease every 100 km of travel or every 3 to 6 months. Basic dynamic, static and moment ratings are not published for LRM - we confirm the figures for this model from the datasheet when you enquire.
Yes - the single standard carriage comes fitted to the 500 mm rail and pre-filled with grease, so there is no separate fitting step on the bench. The ball retainer keeps the balls in place during shipping, but if you ever slide the carriage off for machine assembly, do it slowly and square to the rail, since angled or rushed removal can still drop balls; a dummy rail helps here. Carriage-only spares are held only thinly, so plan any replacement as an order item.
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.