Airtac LRM Miniature Linear Guide LRM12L2X270S10AP
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X270S10AP 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 lengthLong carriage
- Carriages2
- Rail length270 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 LRM12L2X270S10AP
LRM12L2X270S10AP is the precision-grade (P) version of a two-block, long-carriage set: a 12 mm wide stainless-steel rail, 270 mm long, holding two L-type recirculating-ball carriages with no preload (class A) and a 10 mm end-hole offset. Both blocks ship on the rail, pre-greased with Kyodo Yushi PS No. 2, ready for top-mount fixing.
The P grade is the reason to pick this code over its H sibling: tighter manufactured tolerances pay off wherever straightness of travel shows up in a measurement or a process result. Inside each carriage, the balls are graded ISO 3290 G10 and made in Japan; a double-lip seal manages lubrication and dust, and an outer cover shields the seal strip. The manufacturer caps ambient temperature at 80 C with transient peaks to 100 C. Expect no published load or moment rating for LRM - we confirm the exact figures for this model via the RFQ before you order.
Airtac LRM Miniature Linear Guide LRM12L2X270S10AP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X270S10AP |
|---|---|
| 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 | Long 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 | 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 LRM12L2X270S10AP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X270 | 2 carriages on a 270 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, 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 LRM12L2X270S10AP Is Used
Optical comparator measuring fixture
A P-grade miniature rail under the lens carriage of a bench comparator keeps vertical travel repeatable enough for dimensional checks on small machined features.
Sensor-housing assembly cell
Precision travel helps a light press-fit or screwdriving station land on small sensor housings consistently, cycle after cycle, without drifting off centre.
Belt- and cable-driven micro stage
In a compact stage driven by a timing belt or steel cable, the smooth, low-stiction motion of the G10-graded balls preserves positioning resolution at the tool point.
Is the Airtac LRM Miniature Linear Guide LRM12L2X270S10AP the Right Guide?
Specifying on precision rather than load tables is the right instinct with LRM, because AirTAC publishes no dynamic, static or moment ratings for the series - only accuracy grades H and P. Where a real load calculation is unavoidable, especially with cantilevered or substantial loads, move to AirTAC LSH and size from its published per-carriage dynamic, static and moment ratings. For short travel where crossed-roller rigidity matters more than travel length, LGC is the alternative worth comparing.
Checklist for this model: complete set, 12 mm rail width, 270 mm rail length, two long carriages, preload A (none - the easiest grade to install, though the blocks can rock minutely under moment if the mating surface is poor), P accuracy, top-mount fixing. Mounting surfaces must be ground or finish-milled to earn the accuracy grade. Confirm the load rating with us before ordering; stocked set prices span roughly $66 to $831 almost entirely on rail length and carriage count, so trim travel before you trim budget.
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 LRM12L2X270S10AP FAQ
Rail: 12 mm wide stainless steel, 270 mm long, top-mount. Carriages: two, long type, no preload (class A), precision (P) accuracy grade. M3 screw torque: 196 N.cm steel, 127 N.cm cast iron, 98 N.cm aluminium. Ambient temperature: maximum 80 C, transient peaks to 100 C. Re-lubricate every 100 km of travel or every 3 to 6 months - at a 200 mm stroke cycling once per second, 100 km arrives in about three weeks of continuous running, so distance binds before time. Load and moment ratings are not published for LRM; we confirm them per model via RFQ.
You receive one complete set: the 270 mm stainless-steel rail with both long carriages fitted and pre-greased. No black-chrome finish, bolt caps or rail-only sections are held in our LRM12 stock - those are order-in items. Also heed the catalogue caution that striking or dropping the rail can degrade accuracy and life without visible damage, so inspect on arrival.
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 LRM12L2X270S10AP
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.