Airtac LRM Miniature Linear Guide LRM12N2X220S10CP
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X220S10CP is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriages. 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
- Carriages2
- Rail length220 mm
- AccuracyP — precision grade
- PreloadC — medium 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 LRM12N2X220S10CP
The LRM12N2X220S10CP is a complete miniature linear guide from AirTAC's LRM range: a 12 mm stainless-steel rail, 220 mm long, with two standard carriages running on it, finished to accuracy grade P (precision). It ships as one assembled set - rail plus both carriages - with top-mount fixing, the standard arrangement where screws clamp the rail down from above.
Accuracy grade P tightens the height and width matching between rail and carriage compared with grade H, which matters when two rails must sit at matched heights under a single plate. Preload C removes internal play for a firm feel, trading a little running drag for stiffness. The recirculating balls are ISO 3290 G10 Japanese grade, retained in the carriage so they will not scatter during routine handling, backed by a double-lip seal and an outer cover over the screws. Keep ambient temperature at or below 80 C. AirTAC publishes no load or moment ratings for LRM, so we confirm them for this specific code before you order - just ask through the RFQ form.
Airtac LRM Miniature Linear Guide LRM12N2X220S10CP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X220S10CP |
|---|---|
| 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 | 2 |
| Rail length | 220 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision grade |
| Preload grade | C — medium 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 LRM12N2X220S10CP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X220 | 2 carriages on a 220 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| C | C — medium 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, 2 |
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 LRM12N2X220S10CP Is Used
Measuring fixture slide
Grade-P accuracy suits a metrology fixture where a dial indicator or camera sweeps past parts on a 220 mm stroke and readings must repeat to the same plane.
Small optics alignment stage
Preload C holds an optical carrier firmly against play while precision tolerances keep a lens or sensor square to its axis during fine adjustment work.
Electronics assembly press
A benchtop connector-press head runs on twin carriages over a 220 mm rail, with the medium preload keeping the tool face from rocking at the bottom of the stroke.
Is the Airtac LRM Miniature Linear Guide LRM12N2X220S10CP the Right Guide?
Size honestly before committing: for heavy or cantilevered loads move up to LSH, where the catalogue gives you per-carriage dynamic, static and moment figures to calculate with - numbers LRM simply does not publish. For short travel needing crossed-roller rigidity, look at LGC instead. Within LRM, note that price across the stocked range tracks rail length and carriage count far more than rail width, so trimming travel is usually the cheapest saving. Checklist for this code: complete set, 12 mm rail width, standard carriage, two blocks, 220 mm rail, preload C (stiffer, but less tolerant of uneven mounting), grade P accuracy, top-mount, and a confirmed load rating from us before you finalise the design.
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 LRM12N2X220S10CP FAQ
Rail width is 12 mm, rail length is 220 mm, and two standard-length carriages are fitted. Preload is C (medium), accuracy is grade P (precision) and mounting is top-mount. Drive M3 fixing screws at 196 N.cm into steel, 127 N.cm into cast iron or 98 N.cm into aluminium, and M2 screws at 196/127/98 N.cm equivalents per the datasheet. Keep the ambient under 80 C (peaks to 100 C) and re-grease every 100 km of travel or every 3 to 6 months. Basic load and moment ratings are not published for LRM; we confirm them for this exact model when you enquire.
Yes - this is a complete set, not a carriage-only code. In the box you get one 12 mm stainless-steel rail, 220 mm long, with two standard carriages already fitted and pre-filled with Kyodo Yushi PS No. 2 grease. Carriage-only LRM codes carry a BK marker and a pairing letter; this code has neither, so no separate rail purchase or pairing match is needed. If you later want a spare carriage, be aware only a handful of carriage-only SKUs are stocked and most are special orders.
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 LRM12N2X220S10CP
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.