Airtac LRM Miniature Linear Guide LRM12N1X120S10AH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X120S10AH 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 length120 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 LRM12N1X120S10AH
LRM12N1X120S10AH is a complete AirTAC LRM miniature linear guide set built around a 12 mm wide stainless-steel rail. In the box: one 120 mm rail with a 10 mm end-hole offset and one standard-length recirculating-ball carriage already fitted. This is the top-mount version, so the rail is fixed through its upper face. Accuracy grade is H (high) and preload code is A (none).
This exact configuration sits at the heart of our stocked range: 924 of the 988 LRM sets we hold are size 12, which makes this one of the fastest SKUs to ship and the easiest to reorder. The carriage runs on ISO 3290 G10 Japanese balls held in a retention circuit, protected by a double-lip seal that scrapes oil back and excludes dust, with an outer cover shielding the seal strip from larger debris. Because preload is A, the carriage slides with the least running resistance of the three available grades - the trade-off is the lowest stiffness. Ambient temperature must not exceed 80 C, with brief peaks to 100 C. Load and moment ratings are not published for LRM; ask us through the RFQ and we will confirm the figures for this specific model.
Airtac LRM Miniature Linear Guide LRM12N1X120S10AH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X120S10AH |
|---|---|
| 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 | 120 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 LRM12N1X120S10AH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X120 | 1 carriage on a 120 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, 120 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 LRM12N1X120S10AH Is Used
Compact glue-dispensing XY stage
A 120 mm axis stroke under a small dispensing nozzle: the zero-preload carriage glides with minimal breakaway force, so dot placement is not disturbed by stick-slip on short moves.
Microplate shuttle in lab automation
A microplate carrier sliding between a stacker and a reader suits a 12 mm rail and light carriage; the ball-retained design survives careful manual plate-carousel service work.
Small electronics pick-and-place head
Guiding a lightweight SMT placement head over a 120 mm travel, where the top-mount rail bolts straight to the machined deck of a benchtop assembler.
Is the Airtac LRM Miniature Linear Guide LRM12N1X120S10AH the Right Guide?
Pick LRM when the envelope is tight and the duty is light positioning. If the load is heavy or hangs off a cantilever, step up to LSH - that series publishes dynamic, static and moment ratings per carriage that you can size against, something LRM does not offer. Where travel is short and the job demands crossed-roller rigidity, LGC is the better cross-grade. Checklist for this SKU: complete set (rail plus one carriage), 12 mm rail width, standard carriage, one block, 120 mm rail, preload A (freest running, lowest rigidity), accuracy H, top-mount fixing. Send us your load case so we can confirm the rating for this model before you commit.
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 LRM12N1X120S10AH FAQ
Rail width 12 mm; rail length 120 mm with a 10 mm end-hole offset; one standard-length carriage; preload code A (none); accuracy grade H (high); top-mount rail fixing; stainless-steel rail. Screw torque depends on the fastener: M3 at 196 N.cm into steel, 127 into cast iron, 98 into aluminium, and M2 at 58.8, 39.2 and 29.4 N.cm respectively. The carriage ships greased with Kyodo Yushi PS No. 2 and needs re-greasing every 100 km of travel or every 3 to 6 months. Ambient temperature must stay at or below 80 C, with peaks to 100 C. One important note: AirTAC publishes no load or moment ratings for LRM, so we confirm those figures for this exact model when you send an RFQ.
Use LRM when the space is tight and the duty is light - that is what this 12 mm rail and single carriage are made for. Use LSH when you need published numbers to design against: LSH carries a per-carriage table of dynamic, static and moment ratings, while LRM publishes none, so an LRM choice always ends with us confirming the rating for your specific model. If the travel is short but stiffness is the priority, look at LGC with its crossed-roller construction instead. Tell us the load, direction and duty cycle and we will point you to the right series.
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 LRM12N1X120S10AH
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.