Airtac LRM Miniature Linear Guide LRM12L2X445S10CPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X445S10CPT 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 length445 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 LRM12L2X445S10CPT
This is the bottom-mount, precision-graded version of the set: one 12 mm stainless rail, 445 mm between the ends, carrying two long carriages preloaded to grade C and built to accuracy P. The rail is secured from beneath the seat, so nothing interrupts the working face above it.
That hidden-fixing style earns its keep in instruments where the top plate carries optics, sensors or a product path and cannot be drilled through. Handling deserves respect on these small guides: on an inclined rail a carriage can slide off under its own weight, so hold it while positioning. The double-lip seal and outer cover guard the raceways, ball retention reduces - but does not remove - the risk of dropped balls during carriage swaps, and the balls themselves are Japanese-made to ISO 3290 grade G10. Ambient temperature must not exceed 80 C, peaking to 100 C briefly. Load and moment ratings are not published for this series; we confirm them for LRM12L2X445S10CPT when you send the RFQ.
Airtac LRM Miniature Linear Guide LRM12L2X445S10CPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X445S10CPT |
|---|---|
| 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 | 445 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 LRM12L2X445S10CPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X445 | 2 carriages on a 445 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, 445 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 LRM12L2X445S10CPT Is Used
Cleanroom sensor assembly cell
In a compact cleanroom cell assembling pressure sensors, the rail bolts under the work deck so the assembly surface above stays unbroken and easy to wipe down.
Measuring machine retrofit
Retrofitting an older small measuring machine with new miniature rails is straightforward when the fresh 445 mm rails fix from below into the existing seat.
Watch-parts inspection gantry
A watch-component plant runs tiny inspection gantries where a precision-graded, bottom-fixed rail keeps chips and debris away from the hidden screws.
Is the Airtac LRM Miniature Linear Guide LRM12L2X445S10CPT the Right Guide?
If the payload is substantial or hangs off an arm, leave the miniature class: LSH publishes the dynamic, static and moment ratings per carriage that LRM deliberately does not, so the calculation can be closed with real numbers. Short travel with a stiffness requirement points instead to LGC crossed-roller guides. Match this SKU against your drawing before ordering: complete set, 12 mm rail, long carriage, two per rail, 445 mm length, medium preload C, precision accuracy P, bottom-mount fixing, 10 mm end-hole offset, pairing code for any future carriage replacement. Whichever guide you pick, the load and moment figures for the specific model are confirmed by us - send the RFQ and we will close that last open line.
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 LRM12L2X445S10CPT FAQ
Hard facts: a 12 mm wide stainless rail, 445 mm long, two long carriages, medium preload (grade C), precision accuracy (grade P), mounted from below. Torque M2 screws to 58.8 N.cm into steel (39.2 cast iron, 29.4 aluminium) and M3 screws to 196 N.cm (127 cast iron, 98 aluminium). The working ambient must stay at or under 80 C, with transients to 100 C, and lubrication tops up every 100 km of travel or 3 to 6 months - the distance usually binds first, since a 200 mm stroke cycled once per second covers 100 km in roughly three weeks. No load or moment rating is published for LRM; we confirm it per model.
The honest dividing line is documentation. LSH publishes dynamic, static and moment load ratings for each carriage, so a loaded or cantilevered axis can be verified on paper; LRM, including this set, publishes none, and its place is light-duty miniature motion where size and smoothness win. If the travel is short and the priority is stiffness, LGC crossed-roller guides sit between the two. Whatever direction you take, send us the load, moment and stroke data and we will confirm the rating for the exact model before you 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 LRM12L2X445S10CPT
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.