Airtac LRM Miniature Linear Guide LRM12N1X145S10AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X145S10AHT 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 length145 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 LRM12N1X145S10AHT
LRM12N1X145S10AHT is the bottom-mount version of this 145 mm LRM12 set: the trailing T in the code puts the fixing screws underneath, so the rail bolts up into a seat from below rather than down from above. You get a 12 mm wide stainless-steel rail with one standard-length recirculating-ball carriage, no preload (A) and high accuracy (H).
Bottom mounting rewards planning: the mating surface must be ground or finish-milled to achieve the rated travel accuracy, the datum face can be either side of the rail, and with more than one carriage the datum should sit on the same side for all of them. The manufacturer cautions that the ball-retention feature, while helpful, does not make the carriage drop-proof - fitting or removing it at an angle can release the ISO 3290 G10 balls, so work square and slow. Ambient temperature must stay at or below 80 C. Load and moment ratings are not published for LRM; include your duty cycle in the RFQ and we will confirm the ratings for this exact model.
Airtac LRM Miniature Linear Guide LRM12N1X145S10AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X145S10AHT |
|---|---|
| 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 | 145 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 LRM12N1X145S10AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X145 | 1 carriage on a 145 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, 145 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 LRM12N1X145S10AHT Is Used
Slot-seated fixture slide
Retrofitting a guided slide into a fixture body where the rail sits in a machined slot and the screws must go in from underneath - the reason the T code exists.
Connector test gantry
Carrying a light probe head over a row of connectors on a benchtop tester, where the 145 mm stroke spans the connector field and the rail hides below the deck.
Inverted optical mount
Holding a small mirror bracket upside-down under an optical rail in a teaching lab, with the bottom-mount screws concealed inside the mount body.
Is the Airtac LRM Miniature Linear Guide LRM12N1X145S10AHT the Right Guide?
Lead with the mounting question: if your machine cannot offer a clear top surface - a rail seated in a slot, an overhead obstruction, a fixture body that flips - the T in this code is the reason to pick it over the top-mount LRM12N1X145S10AH. Size up to LSH when the load is substantial or overhung, because LSH publishes per-carriage dynamic, static and moment ratings you can verify, which LRM does not. Keep LGC in mind for short travels that need crossed-roller rigidity.
Confirm before ordering: form (complete set), rail width 12 mm, standard carriage, carriage count 1, rail length 145 mm, preload A (none - the forgiving choice to install, with the least inherent rigidity), accuracy H, bottom-mount direction. Replacing a part later? Carriage-only items carry a pairing code, our stock of them is thin, so confirm the load rating with us and order accordingly.
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 LRM12N1X145S10AHT FAQ
12 mm rail width, 145 mm rail length, one standard carriage, bottom-mount rail (code T), preload A (none), accuracy H (high). Screw torque when fitting: M2 - 58.8 N.cm steel, 39.2 cast iron, 29.4 aluminium; M3 - 196, 127 and 98 N.cm. Maximum ambient temperature 80 C, short peaks to 100 C. Re-grease after every 100 km of travel or every 3 to 6 months, whichever comes first. Basic load and moment ratings are not published for LRM; we confirm them per model before you order.
The set contains the 145 mm stainless-steel rail and one standard carriage, nothing else - no screws and no end stops. The trailing T changes only how the rail is fixed: the bolt holes are used from beneath, so your base plate needs matching tapped holes or counterbores and a surface ground or finish-milled to grade. Handling tip from the manufacturer: on an inclined rail the carriage can slide off under its own weight, so hold it during installation, and never strike the rail - damage that affects accuracy and life is not always visible.
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 LRM12N1X145S10AHT
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.