Airtac LRM Miniature Linear Guide LRM12N1X320S10AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X320S10AHT 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.
- SeriesLRM
- Supplied asComplete guide set
- SizeLRM12
- Rail width12 mm
- Carriage lengthStandard carriage
- Carriages1
- Rail length320 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 LRM12N1X320S10AHT
The trailing T in LRM12N1X320S10AHT selects a bottom-mount rail: fixing screws pass through the underside of the 320 mm, 12 mm wide stainless-steel rail, so the working surface above the rail can stay unbroken. One standard-length recirculating-ball carriage, pre-greased, rides the rail as a complete set.
Preload is A (none) and accuracy H (high). The ball-retention design holds the balls in the carriage during handling, but the maker is clear that it is a help, not a guarantee: inserting the carriage at an angle or swapping it hastily can still drop balls, so plan a dummy rail if field swaps are likely - and note that carriage-only stock is thin, so a replacement is usually ordered specially. Never strike or drop the rail; accuracy can suffer with no visible mark. Keep the ambient at or below 80 C, peaks 100 C. At 320 mm this rail sits well below the 1005 mm catalogue maximum for size 12, so longer runs remain available if the layout grows. Load and moment ratings are not published for LRM - we confirm them for the exact model when you send the RFQ.
Airtac LRM Miniature Linear Guide LRM12N1X320S10AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X320S10AHT |
|---|---|
| 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 | 320 mm (spliced sections) |
| 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 LRM12N1X320S10AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X320 | 1 carriage on a 320 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, 320 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.
Where the Airtac LRM Miniature Linear Guide LRM12N1X320S10AHT Is Used
Flush-mounted camera rail in a packaging checker
Bolting the rail from beneath so the deck above stays flat and unbroken - nothing proud to catch film or product as it passes the inspection camera.
Carriage swap on a service test rig
When a test rig carriage wears, a replacement must match the rail and be fitted carefully; the ball-retention design helps, but a dummy rail is still the safe method.
Light parts feeder slide
Guiding small stamped parts into an assembly station; the stainless rail suits the workshop environment and grade H accuracy keeps the track true.
Is the Airtac LRM Miniature Linear Guide LRM12N1X320S10AHT the Right Guide?
LSH is the step up when loads are substantial or cantilevered: it carries published dynamic, static and moment figures per carriage, which is what a real sizing calculation needs and what LRM cannot supply. Short travel with a rigidity priority points across to LGC crossed-roller guides. Tick off the rest of the code before ordering: form, 12 mm rail width, carriage length, carriage count and rail length, preload grade, accuracy grade, mounting direction and - for a replacement carriage - the pairing letter. Send us the model and the application and we confirm the ratings.
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 LRM12N1X320S10AHT FAQ
A 320 mm stainless rail, 12 mm wide, drilled for bottom-mount fixing, with one standard-length carriage, no preload (A), high accuracy (H) and 10 mm end-hole offsets. Use 58.8 N.cm on M2 screws into steel (39.2 cast iron, 29.4 aluminium) and 196 N.cm on M3 (127, 98). Ambient must stay at or below 80 C, peaks 100 C; re-grease each 100 km of travel or every 3 to 6 months. Dynamic, static and moment ratings are not published for LRM - we confirm them per model.
A matched set: the 320 mm stainless-steel rail and one standard-length carriage, greased and ready to run, with the rail drilled for underside fixing. It is not a carriage-only part. If you later need a spare carriage on its own, look for a separate carriage SKU sharing the pairing code of your rail - our carriage-only stock covers only a few SKUs, so most spares are ordered to request.
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 LRM12N1X320S10AHT
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.