Airtac LRM Miniature Linear Guide LRM12N2X245S10CPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X245S10CPT 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 length245 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 LRM12N2X245S10CPT
LRM12N2X245S10CPT combines the two specification choices that usually decide a precision miniature axis: accuracy grade P and bottom-mount rail fixing. One 245 mm stainless-steel rail, 12 mm wide, is fixed from beneath so the upper surface stays unbroken, and two standard-length recirculating-ball carriages ride on top of it - a complete set, ready to bolt into a base that is serviced from below.
The maintenance rhythm is worth planning around. Carriages leave the factory filled with Kyodo Yushi PS No.2, and the interval is every 100 km of travel or every 3 to 6 months, whichever comes first - and the distance binds sooner than it sounds, because a 245 mm stroke cycled once per second covers 100 km in under five days of continuous running. A top-up port at the rear of each carriage keeps the job quick. Inside, Japanese-made ISO 3290 G10 balls run between double-lip seals under an outer cover; ambient temperature must stay at or below 80 C with peaks to 100 C. No load rating is published for LRM, so we confirm it for this part number with your RFQ.
Airtac LRM Miniature Linear Guide LRM12N2X245S10CPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X245S10CPT |
|---|---|
| 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 | 245 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 LRM12N2X245S10CPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X245 | 2 carriages on a 245 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, 245 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 LRM12N2X245S10CPT Is Used
Retrofitting an optical comparator
Replacing worn ways in an older optical comparator with a grade P bottom-mount guide brings the machine back to measuring tolerance without redesigning the base.
Sealed metrology enclosure
Inside a dust-shielded inspection enclosure, the double-lip seals and outer cover keep swarf and debris out of the raceways during long measurement runs.
Sample vial logistics line
A laboratory logistics shuttle carrying sealed sample vials along a 245 mm track, fixed from below so the vials glide over an unbroken top surface.
Is the Airtac LRM Miniature Linear Guide LRM12N2X245S10CPT the Right Guide?
This configuration suits a precision axis whose base can only be reached from underneath. Compare it honestly with the alternatives: if published load tables matter to your sizing work, LSH gives you dynamic, static and moment ratings per carriage, which LRM does not; if short travel needs crossed-roller stiffness, LGC is the better mechanical fit. Then verify each parameter: complete-set form, 12 mm rail width, 245 mm rail, two standard carriages, preload C (firmest grade - accurate, but least tolerant of imperfect mounting surfaces), accuracy P, bottom-mount direction. Replacing a single carriage later needs a pairing-code match to this rail, and we confirm the load rating for the exact model before you order.
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 LRM12N2X245S10CPT FAQ
Rail width 12 mm; rail length 245 mm; two standard-length carriages; preload C, the firmest LRM grade; accuracy grade P; bottom-mount fixing; S10 end-hole offset. Fixing screws: M3 at 196 N.cm into steel, M2 at 58.8 N.cm, reduced for cast iron and lighter alloys, into ground or finish-milled surfaces. Grease is Kyodo Yushi PS No.2, renewed every 100 km of travel or every 3 to 6 months. Ambient limit 80 C, peaks 100 C. Load and moment ratings are not published for LRM - send the RFQ and we confirm them for this exact model.
Ask what you need the catalogue to tell you. LRM gives you a miniature envelope, a common rail shared by different carriage lengths, and precision to grade P - but no published load, moment or life figures, so sizing relies on our per-model confirmation. LSH publishes basic dynamic, static and moment ratings per carriage, which is what you need whenever the load is heavy, offset or cantilevered. If the travel is short and crossed-roller rigidity matters more than stroke, LGC is the third option. Tell us the load and duty and we will point you to the right series.
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 LRM12N2X245S10CPT
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.