Airtac LRM Miniature Linear Guide LRM12L1X270S10CPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X270S10CPT 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 lengthLong carriage
- Carriages1
- 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 LRM12L1X270S10CPT
LRM12L1X270S10CPT is a complete, factory-assembled AirTAC LRM set: a 12 mm wide stainless-steel rail, 270 mm long, with one long recirculating-ball carriage running on it. The trailing T codes a bottom-mount rail, so the fixing screws sit underneath - useful when the upper surface is the measuring datum or must stay flush inside a gauge body. End fixing holes are offset 10 mm from each rail end.
Two things define this build. Grade P accuracy keeps travel error tight over the full stroke, which matters in measuring fixtures, while preload C removes most of the play at the cost of demanding properly prepared seats: grind or finish-mill the mounting face and quote the catalogue's surface rows per size. On handling, the ball-retention design is a helper, not a guarantee - insert the carriage square onto the rail and avoid hurried swap-outs, or balls can still drop; a dummy rail makes fitting easier, and since only a handful of carriage-only codes are stocked, most spare carriages are a special order. The balls themselves are ISO 3290 G10, Japanese made, a grade for the balls alone. Keep ambient temperature at or below 80 C with transient peaks to 100 C. LRM publishes no load or moment figures; we confirm them for this model via the RFQ.
Airtac LRM Miniature Linear Guide LRM12L1X270S10CPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X270S10CPT |
|---|---|
| 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 | 1 |
| Rail length | 270 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 | 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 LRM12L1X270S10CPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X270 | 1 carriage 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, 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 LRM12L1X270S10CPT Is Used
Lead-frame gauging station
A gauge checking bent pins and formed lead frames slides a sample holder on this rail; underside fixing leaves the top face bare for the test probes.
First-article check fixture
A small checking fixture for machined brackets uses the precision grade so dial-indicator readings track consistently along the 270 mm stroke.
Enclosed vial shuttle
Inside a compact enclosure that protects sample vials in transit, the long carriage moves a rack between load and read positions with low vibration.
Is the Airtac LRM Miniature Linear Guide LRM12L1X270S10CPT the Right Guide?
Choose LSH when the load is real: it publishes dynamic, static and moment ratings per carriage that you can put into a calculation, something LRM never does. Choose LGC when travel is short and you need the rigidity of crossed rollers rather than ball recirculation. For this set, tick off: complete guide with rail included, 12 mm rail width, long carriage, one block, 270 mm rail, medium preload with its trade-off of stiffness against tolerance for imperfect seats, precision accuracy P, and bottom-mount fixing that needs machined access below the plate. Confirm the load rating with us before finalising the drawing.
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 LRM12L1X270S10CPT FAQ
Stated values: rail width 12 mm, rail length 270 mm, one long carriage, preload C (medium), accuracy P (precision), bottom-mount fixing. Torque M3 screws to 127 N.cm into cast iron, 196 N.cm into steel and 98 N.cm into aluminium, or 39.2 / 58.8 / 29.4 N.cm for M2. Ambient temperature must stay at or below 80 C with brief peaks to 100 C, and the grease - Kyodo Yushi PS No. 2 from the factory - should be renewed every 100 km of travel or every 3 to 6 months. Dynamic load, static load and moment ratings are not published for LRM; we confirm the numbers for your model when you send the RFQ.
Carefully. The ball retainer holds the balls during normal handling, but fitting the carriage at an angle or pulling it on and off quickly can still drop them, so work slowly or use a dummy rail. This SKU already includes its carriage on the rail; a spare is a separate carriage-only code whose pairing letter must match your rail, and with only a few such codes stocked, most replacements are made to order.
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 LRM12L1X270S10CPT
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.