Airtac LRM Miniature Linear Guide LRM12L2X245S10AH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X245S10AH 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 lengthLong carriage
- Carriages2
- 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 LRM12L2X245S10AH
LRM12L2X245S10AH is a complete miniature linear guide set: one 12 mm wide stainless-steel rail, 245 mm long, carrying two long (L) recirculating-ball carriages. Preload grade A means the carriages run with no deliberate interference, accuracy grade H is the high grade of the two AirTAC offers on this series, and the rail is top-mount, so the fixing screws drop in from above.
The long carriages spread the rolling contact over more balls and a longer bearing span, which helps whenever the carried part tends to tip, and running two carriages on one rail resists tipping along the direction of travel. The balls themselves are ISO 3290 grade G10, Japanese made; a double-lip seal scrapes oil and excludes dust while the outer cover shields the seal strip. Ambient temperature must stay at or below 80 C, with short peaks no higher than 100 C. AirTAC publishes no dynamic or static load rating for LRM, so we confirm the figures for this exact model before you order - just send us the RFQ.
Airtac LRM Miniature Linear Guide LRM12L2X245S10AH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X245S10AH |
|---|---|
| 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 | 2 |
| 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 LRM12L2X245S10AH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X245 | 2 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, 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.
Where the Airtac LRM Miniature Linear Guide LRM12L2X245S10AH Is Used
Compact XY inspection stage
A small benchtop XY stage carrying a camera or probe over a 245 mm axis gains smooth, repeatable motion from twin long carriages that resist tipping as the bridge travels.
Small electronics assembly fixture
Positioning a soldering nozzle or dispensing tip over PCB pads suits a light-duty miniature guide; the long carriages keep a narrow head steady along the whole stroke.
Laser alignment slide
Trimming a low-power laser or sensor into line needs repeatable, low-friction adjustment with no stick-slip - preload-A running is the forgiving choice for fine setting work.
Is the Airtac LRM Miniature Linear Guide LRM12L2X245S10AH the Right Guide?
If the load is substantial or cantilevered, step up to the LSH series: it publishes per-carriage dynamic, static and moment ratings you can size against, something LRM does not offer. For short travel where crossed-roller rigidity matters more than stroke, LGC is the better cross-series match. Before committing, check this list: complete set (rail plus two long carriages), 12 mm rail width, 245 mm rail length, preload A for the smoothest, most forgiving running, accuracy H, top-mount fixing, and confirm the load rating with us. LRM12 is the deep end of our stock - 924 of the 988 sets we hold are size 12 - and long carriages are stocked almost as heavily as standard ones, so this configuration is rarely a wait.
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 LRM12L2X245S10AH FAQ
Rail width 12 mm (the size code equals the rail width), rail length 245 mm, two long carriages, preload A (none), accuracy H (high), top-mount rail with screw access from above. Recommended screw torque: M2 - 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium; M3 - 196, 127 and 98 N.cm respectively. Ambient temperature must not exceed 80 C with peaks to 100 C, and re-grease every 100 km of travel or every 3 to 6 months. Dynamic, static and moment load ratings are not published for LRM; we confirm them for this model on request.
Choose LRM when the envelope is tight and the duty is light, as here. Choose LSH when the load is heavy or overhung, because LSH publishes per-carriage dynamic, static and moment ratings you can calculate with, while LRM has no published ratings and its capacity is confirmed per model. The two series are not interchangeable - do not attempt to mix rails and carriages between them.
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 LRM12L2X245S10AH
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.