Airtac LRM Miniature Linear Guide LRM12N1X66S8AH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X66S8AH 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 length66 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 LRM12N1X66S8AH
The LRM12N1X66S8AH is a complete miniature guide in a very small footprint: a 12 mm wide stainless-steel rail just 66 mm long, with its mounting holes offset 8 mm from each end, and one standard-length recirculating-ball carriage riding on it. It is delivered as a fitted set, greased and ready to install.
Inside the carriage, ISO 3290 G10 Japanese balls - a grade that describes the balls only, never the assembly - recirculate behind a double-lip seal, with an outer cover over the screw line keeping swarf and splashes out. Because the stroke on a rail this short is tiny, the 100 km re-grease distance can take a very long time to accumulate and the 3 to 6 month calendar interval is what actually binds; a 200 mm stroke cycling once per second, by contrast, would cover 100 km in about three weeks of continuous running. The ambient limit is 80 C with 100 C peaks. Load and moment ratings are not published for LRM: tell us the duty and we will confirm the rating for this model.
Airtac LRM Miniature Linear Guide LRM12N1X66S8AH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X66S8AH |
|---|---|
| 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 | 66 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 LRM12N1X66S8AH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X66 | 1 carriage on a 66 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, 66 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 LRM12N1X66S8AH Is Used
Dispensing nozzle height adjuster
A short trim slide that sets the stand-off between a micro-dispense needle and a PCB pad; 66 mm of travel exceeds anything the adjustment needs and the 12 mm rail tucks under the dispense head.
Machine-vision focus carriage
Carrying a compact board-level camera across a fine focus range on an inspection bracket, where the 8 mm end-hole offset shortens the mounting pitch on a narrow bracket.
Probe quick-change slide
A small slide that swaps test probes in and out of a fixture on a high-cycle electronics tester; the short stroke keeps each cycle fast and the double-lip seal holds its grease film through millions of short moves.
Is the Airtac LRM Miniature Linear Guide LRM12N1X66S8AH the Right Guide?
This is the set to pick when travel, not capacity, is the constraint - 66 mm of rail suits a trim or focus axis inside a crowded housing. If the load is heavy or hangs off the carriage, move up to LSH, whose published per-carriage dynamic, static and moment ratings let you size by calculation; LRM offers no published numbers to work from. For short travel that demands maximum rigidity, LGC crossed-roller guides are the better cross-over. Check the code against the drawing: complete set, 12 mm rail, standard N carriage, single carriage, 66 mm rail length, preload A (none - freest running, easiest installation), accuracy H, top-mount holes offset 8 mm. Rail and mating faces should be ground or finish-milled. Confirm the load rating with us before committing.
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 LRM12N1X66S8AH FAQ
Form: complete set with the rail fitted. Rail: 12 mm wide stainless steel, 66 mm long, top-mount holes with an 8 mm offset from the ends. Carriage: one, standard (N) length. Preload A (none), accuracy H (high). M2 screws torque to 58.8 N.cm in steel, 39.2 N.cm in cast iron and 29.4 N.cm in aluminium; M3 screws to 196, 127 and 98 N.cm respectively. Operating ambient: 80 C maximum, peaks to 100 C. Lubrication: Kyodo Yushi PS No. 2 from the factory, renewed every 100 km of travel or every 3 to 6 months. No dynamic, static or moment load rating is published for LRM - request the figure for this model from us.
Choose LRM12 when the envelope is small, the duty is light and smoothness matters more than raw capacity - the 12 mm rail and 66 mm length fit where a larger guide cannot. Choose LSH when the load is substantial or cantilevered, because LSH publishes per-carriage dynamic, static and moment ratings you can verify against your own calculation, while LRM publishes none and the rating must be confirmed model by model. If in doubt, send us the load, moment and stroke and we will confirm which series the duty belongs to.
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 LRM12N1X66S8AH
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.