Airtac LRM Miniature Linear Guide LRM12N3X245S10AH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N3X245S10AH 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.
- SeriesLRM
- Supplied asComplete guide set
- SizeLRM12
- Rail width12 mm
- Carriage lengthStandard carriage
- Carriages3
- Rail length245 mm
- AccuracyH — high grade
- PreloadA — no preload
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac LRM Miniature Linear Guide LRM12N3X245S10AH
The LRM12N3X245S10AH is a complete AirTAC LRM miniature linear guide set: one 12 mm wide stainless-steel rail, 245 mm long, carrying three standard-length recirculating-ball carriages already fitted and ready to bolt down. The S10 in the code fixes the end-hole offset at 10 mm, and with no trailing T this is a top-mount rail, so you fasten it from above through its own holes.
Three carriages on one rail spread any tipping component along the stroke far better than a single block, which is the main reason builders choose this layout for small positioning stages. All LRM carriages share one rail profile, the ball-retention design limits dropped balls during handling, the balls themselves are Japanese ISO 3290 G10 grade, and a double-lip seal plus outer cover guard the raceway from oil loss and debris. Ambient temperature must stay at or below 80 C. Note that load and moment ratings are not published for LRM; tell us your application via the RFQ and we confirm the figures for this exact set before you order.
Airtac LRM Miniature Linear Guide LRM12N3X245S10AH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N3X245S10AH |
|---|---|
| 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 | 3 |
| Rail length | 245 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.
Model Code: Airtac LRM Miniature Linear Guide LRM12N3X245S10AH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 3X245 | 3 carriages on a 245 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. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 245 mm |
| Carriage | Yes, 3 |
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.
Where the Airtac LRM Miniature Linear Guide LRM12N3X245S10AH Is Used
Laser marking XY stage
A compact laser marker's movable head needs smooth, repeatable travel in a shallow envelope. This 245 mm three-block set keeps the optic steady across the stroke, and the 12 mm rail tucks under a thin baseplate.
SMD pick-and-place head
On a small SMD placement machine, a triple-block layout resists the pitching moment of a head that picks at one point and places at another, while the 80 C ambient limit suits a warm production bench.
Optical inspection slide
A laboratory sample slide under a microscope benefits from H high accuracy and play-free preload A travel, giving the operator a stage that moves evenly without stiction when positioning small parts.
Is the Airtac LRM Miniature Linear Guide LRM12N3X245S10AH the Right Guide?
If the load on this stage is substantial or hangs off a cantilever, step up to AirTAC LSH instead: LSH publishes per-carriage dynamic, static and moment ratings you can size against on paper, which LRM does not. For very short travel where crossed-roller rigidity matters more than stroke, look across at LGC. To verify this set: form complete, rail width 12 mm, standard carriage, three blocks, 245 mm rail, preload A, H accuracy, top-mount rail. Preload A slides easiest and tolerates mounting error best. Confirm the load rating with us before ordering - LRM figures are issued per model, never read from a table.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Load and moment confirmed with us
- ✓ Travel length and mounting space
- ✓ Accuracy grade and preload
- ✓ Mounting surface ground or finish-milled
- ✓ Pairing code, if replacing a part
Installation & Maintenance Notes
- check Mounting surface must be ground or finish-milled.
- check Torque the rail screws per the recommended figures, in sequence.
- check Keep the mounting corner radius inside the stated R maximum.
- check Do not angle the carriage onto the rail; balls can drop out.
- check Drive the supplied bolt caps into the mounting holes.
- check Re-grease every 100 km of travel or every 3–6 months.
- check Installation by qualified personnel per AirTAC docs.
Airtac LRM Miniature Linear Guide LRM12N3X245S10AH FAQ
Rail width 12 mm, rail length 245 mm, end-hole offset 10 mm, three standard-length carriages, preload A (none), accuracy H (high), top-mount rail. Fixing screws are M2 or M3 depending on the size: torque M2 at 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium, and M3 at 196, 127 and 98 N.cm respectively. Ambient temperature must stay at or below 80 C with peaks no higher than 100 C. Re-grease every 100 km of travel or every 3 to 6 months. Basic dynamic and static load ratings and moment ratings are not published for LRM; we confirm them for this exact model before you order.
It is a complete set: one 245 mm stainless rail with all three standard carriages supplied fitted. No other parts are needed to mount it, though you add your own M2 or M3 fixing screws to suit your plate. Carriage-only LRM codes are separate SKUs, and carriage-only stock is very thin - just four SKUs in our range - so if you plan field swaps on this rail, ask us about matching a spare carriage before you need it.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LRM Miniature Linear Guide LRM12N3X245S10AH
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.