Airtac LRM Miniature Linear Guide LRM12N2X270S10CP
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X270S10CP 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 length270 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 LRM12N2X270S10CP
LRM12N2X270S10CP arrives as a complete miniature guide kit: a single stainless-steel rail, 12 mm wide and 270 mm long, with two standard-length recirculating-ball carriages already fitted. The mounting holes sit 10 mm in from each rail end, and the top-mount format means the rail is fixed with socket screws driven from above. Medium preload (C) and precision-grade manufacture (P) are both built into this exact code.
Why pick preload C on a 12 mm guide: it stiffens the carriage against play and bounce, which pays off when a head must return to the same coordinate over and over, at the cost of slightly higher running drag than the A or B grades. Every LRM carriage shares one common rail profile, holds its ISO 3290 G10 grade balls by retention - a grade for the balls alone, not an accuracy class for the assembly - and seals with a double lip behind an outer cover that hides the screw heads. Keep ambient temperature at 80 C or below, with only brief excursions to 100 C. AirTAC publishes no load or moment table for LRM, so the ratings for this kit are confirmed per model - send the RFQ and we will check them before you commit.
Airtac LRM Miniature Linear Guide LRM12N2X270S10CP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X270S10CP |
|---|---|
| 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 | 270 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 LRM12N2X270S10CP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X270 | 2 carriages on a 270 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, 270 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 LRM12N2X270S10CP Is Used
Chip-tray indexing slide
A semiconductor packaging bench stepping small ceramic carriers between inspection and placement stations; preload C holds position against the stop-and-start rhythm of the indexing cycle on a compact 12 mm rail.
Laboratory autosampler gantry
Moving a micro-syringe head over a plate of samples demands repeatable stops; the precision P grade and medium preload give a dosing routine its repeatability without inflating the machine envelope.
Optical bench alignment carriage
Fine hand adjustment of a small laser or lens assembly; the ball-retention design lowers the risk of lost balls when the carriage is slid off for optics changes, though careful square insertion is still required.
Is the Airtac LRM Miniature Linear Guide LRM12N2X270S10CP the Right Guide?
Two directions to check before ordering. If the load is heavy or hangs off a cantilever, move up to LSH, where the catalogue lists per-carriage dynamic, static and moment ratings you can plug straight into a calculation - LRM offers no such table. If travel is short and the priority is crossed-roller rigidity over stroke, LGC is the closer match. For this SKU, tick through: complete set rather than carriage only, 12 mm rail width, standard carriage length, two blocks on 270 mm of rail, preload C with its drag-for-stiffness trade-off, precision P accuracy, top-mount fixing, and a load rating confirmed with us before purchase. One budget note: stocked set prices span roughly $66 to $831 across only two rail widths, so trimming rail length - not size - is what moves the price.
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 LRM12N2X270S10CP FAQ
Rail width 12 mm, rail length 270 mm with a 10 mm end-hole offset, two standard-length carriages, preload C, precision P accuracy and top-mount fixing. Torque for M3 fixing screws is 196 N.cm into steel, 127 N.cm into cast iron and 98 N.cm into aluminium. Ambient temperature is limited to 80 C with peaks of 100 C, and re-greasing falls due every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for the LRM series; we confirm them for this specific model through the RFQ.
LRM wins on footprint: a 12 mm rail with two standard carriages fits machines where every millimetre of height and width counts. LSH is the answer when a real calculation is needed, because LSH publishes dynamic, static and moment ratings per carriage that you can size against, while LRM ratings are supplied by confirmation only. For crossed-roller stiffness on a short stroke, look at LGC instead. If the duty is light positioning in a tight envelope, this kit - with the load confirmed by us first - is the economical route.
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 LRM12N2X270S10CP
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.