Airtac LRM Miniature Linear Guide LRM12L2X395S10CP
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X395S10CP 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 length395 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 LRM12L2X395S10CP
The LRM12L2X395S10CP is a complete AirTAC LRM miniature linear guide set: a 12 mm wide stainless-steel rail, 395 mm long, carrying two long recirculating-ball carriages. The carriages are the long L pattern, so each block spans more balls along the rail than a standard block of the same series. This code specifies medium preload (C), precision accuracy (P) and a top-mount rail, with the end mounting holes offset 10 mm from the rail ends.
Medium preload is the firmest setting LRM offers: it removes clearance for repeatable positioning, at the cost of higher running drag and less tolerance of mounting-surface error, so the bench must be ground or finish-milled to the recommended flatness rows. Inside each carriage the balls are Japanese-made to ISO 3290 G10, and it is that ball grade which keeps the motion smooth and even - it is not an accuracy grade for the assembly. A ball-retainer design stops the balls falling out during handling, a double-lip seal scrapes oil back and excludes dust, and an outer cover shields the seal strip and hides the fixing screws. Ambient temperature must stay at or below 80 C, with transient peaks no higher than 100 C. AirTAC publishes no load or moment ratings for LRM, so we confirm the figures for this exact model before you order - send us the RFQ.
Airtac LRM Miniature Linear Guide LRM12L2X395S10CP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X395S10CP |
|---|---|
| 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 | 395 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 LRM12L2X395S10CP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X395 | 2 carriages on a 395 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, 395 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 LRM12L2X395S10CP Is Used
Benchtop measuring fixture
A small coordinate-measuring fixture on a lab bench gains a repeatable traverse: precision grade P and medium preload C remove play, so the probe returns to the same line pass after pass.
Lens-alignment slide
On an optics assembly jig, a long-carriage pair under a lens holder resists the tipping that a single short block would allow while the operator nudges the part into focus.
Semiconductor test handler
A compact wafer or IC transport stage in electronics production suits a 12 mm miniature rail: light payloads, a tight envelope, and a precision grade that keeps the pick point on track.
Is the Airtac LRM Miniature Linear Guide LRM12L2X395S10CP the Right Guide?
If the load on these two carriages is substantial or cantilevered, step up to the AirTAC LSH series instead: LSH publishes per-carriage dynamic, static and moment ratings you can actually size against, numbers LRM does not list at all. If the travel is short and the job demands crossed-roller rigidity rather than long travel, look across at LGC. To keep this set, run the checklist: complete set form; 12 mm rail width; long carriage; two blocks; 395 mm rail; preload C with the drag-versus-rigidity trade-off stated above; accuracy P; top-mount fixing; and confirm the load rating with us before committing. One reassurance on configuration: long carriages are listed in this range just as widely as standard ones, so this pattern is a normal, everyday choice rather than a special.
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 LRM12L2X395S10CP FAQ
Rail width is 12 mm and the rail is 395 mm long, carrying two long carriages. Preload is C (medium, the firmest grade LRM offers), accuracy is P (precision), and the rail mounts from the top with holes offset 10 mm from the ends. M3 fixing screws torque to 196 N.cm in steel, 127 N.cm in cast iron and 98 N.cm in aluminium. Ambient temperature must not exceed 80 C, with peaks to 100 C. Re-grease with Kyodo Yushi PS No. 2 every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM - we confirm them per model before you order.
Preload C is the stiffest of the three LRM grades (A none, B light, C medium - there is no heavy grade). It eliminates clearance so a reversing load does not knock the carriage, which is why it suits a precision measuring move. The price is extra running drag and less forgiveness for imperfect mounting surfaces, so grind or finish-mill the bench and torque the M3 screws evenly. If your move is free-running rather than positional, a preload A version of the same set runs with less friction.
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 LRM12L2X395S10CP
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.