Airtac LRM Miniature Linear Guide LRM12N1X220S10APT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X220S10APT 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 length220 mm
- AccuracyP — precision 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 LRM12N1X220S10APT
The LRM12N1X220S10APT is the precision-grade, bottom-mount version of the 220 mm LRM12 set: a 12 mm wide stainless-steel rail carrying one standard-length recirculating-ball carriage, with no preload. Bottom-mount means the fixing holes sit in recesses along the rail spine and the screws go in from underneath - the top face stays clear, which matters where the carriage envelope is tight or the visible surface must be clean.
Accuracy grade P tightens the tolerances on rail height and width relative to the H grade, and that shows up when two rails must run at matched height in an XY or dual-rail layout. The carriage carries ISO 3290 G10 balls, Japanese made, behind a double-lip seal, with an outer cover over the seal strip and screws. Keep ambient temperature at or below 80 C, transients no higher than 100 C. No load, moment or running-parallelism figures are published for the LRM series - request a quote and we will confirm the ratings that apply to this exact model.
Airtac LRM Miniature Linear Guide LRM12N1X220S10APT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X220S10APT |
|---|---|
| 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 | 220 mm (spliced sections) |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision 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 LRM12N1X220S10APT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X220 | 1 carriage on a 220 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. |
| P | P — precision grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 220 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 LRM12N1X220S10APT Is Used
Wafer inspection microscope stage
A small inspection microscope stage sliding a wafer or photomask past the objective: precision-grade tolerances keep the sample plane consistent, and bottom-mount fixing leaves the stage top clear for the workpiece holder.
Retrofit slide for a measuring instrument
Replacing a worn slide in an older height gauge or comparator: the 220 mm rail and single standard carriage suit a light instrument rebuild, and the stainless rail wipes clean during refurbishment.
UV curing station slide
A slide passing small adhesive bonds under a UV lamp inside a shielded enclosure: the outer cover keeps cured drips and dust away from the seal strip, and the carriage should sit far enough from the lamp head to respect the 80 C ambient ceiling.
Is the Airtac LRM Miniature Linear Guide LRM12N1X220S10APT the Right Guide?
Two questions decide this part. First, does the mounting face suit bottom fixing - a rail bolted up under a plate, or a top surface that must stay unbroken - because the trailing T changes the hole pattern, not the carriage. Second, do two rails have to run level: if so, the tighter P-grade tolerances earn their keep. On load, LRM publishes nothing, so if your mass is substantial or cantilevered, size against LSH instead - its per-carriage dynamic, static and moment ratings are on the datasheet - or choose LGC for short travel needing crossed-roller rigidity. Then run the checklist: complete set versus carriage only, 12 mm rail width, standard carriage length, single block, 220 mm rail, preload A and its lighter-running trade-off, P accuracy, bottom-mount direction - and ask us to confirm this model's load rating before ordering.
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 LRM12N1X220S10APT FAQ
Rail width 12 mm, rail length 220 mm, one standard carriage, preload A (none), accuracy P (precision), bottom-mount rail, 10 mm end-hole offset. Torque M2 screws to 58.8 N.cm in steel, 39.2 N.cm in cast iron, 29.4 N.cm in aluminium; M3 screws to 196, 127 and 98 N.cm. Re-grease every 100 km of travel or every 3 to 6 months, and keep ambient at or below 80 C with 100 C transient peaks. Dynamic load, static load and moment ratings are not published for LRM - we confirm them for this model before order.
Bottom-mount (the trailing T in the code) puts the screw holes in recesses along the rail so fixing happens from underneath - useful under a top plate or where nothing may stand proud of the rail. It changes the hole pattern and your fixture design, not the carriage or its running behaviour. Either side of the rail can serve as the datum face; for matched running across two rails, grade P's tighter tolerances help. If you need to check load capacity rather than geometry, LRM has no published ratings - ask us and we confirm for this exact part number.
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 LRM12N1X220S10APT
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.