Airtac LRM Miniature Linear Guide LRM12N2X495S10CPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X495S10CPT 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 length495 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 LRM12N2X495S10CPT
The LRM12N2X495S10CPT is the twin-carriage 12 mm set with a difference in the mounting: the trailing T in the code puts the rail on a bottom-mount seat, so the fixing holes accept screws from underneath - the answer for designs where the top of the rail sits under a worktable, a cover or a fixture plate and cannot be reached from above. The stainless rail runs 495 mm and carries two standard-length recirculating-ball carriages with the 10 mm end-hole offset, delivered as one assembly.
Accuracy is P (precision) and preload is C (medium), the firmest and least forgiving combination stocked on LRM - it takes up play but asks for a properly ground or finish-milled mounting surface, and the catalogue lists the surface dimension rows per size as an unlabelled set, so quote them as a set rather than assigning one to a size. The carriages run on ISO 3290 G10 Japanese balls, a grade that applies to the balls only; ball retention keeps them in place during normal handling, though angling the carriage onto the rail can still drop one. Double-lip seals and an outer cover protect the raceway from swarf and dust. Keep ambient temperature at or under 80 C, with peaks no higher than 100 C. There is no published load rating for LRM; we will confirm the figures for this model against your RFQ.
Airtac LRM Miniature Linear Guide LRM12N2X495S10CPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X495S10CPT |
|---|---|
| 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 | 495 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 LRM12N2X495S10CPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X495 | 2 carriages on a 495 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, 495 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 LRM12N2X495S10CPT Is Used
Electronics test fixture transfer
A bottom-mount rail fixes from beneath the fixture plate, leaving the working surface clear for probes and connectors on a compact electronics test station.
Fiber-optic alignment manipulator
Precision accuracy and medium preload give the fine, play-free corrections a fiber alignment stage needs, with two blocks sharing the 495 mm stainless rail.
Bench-top robot base slide
For a small laboratory robot arm, two carriages on one rail better resist tipping along the stroke, and bottom-mount fixing hides the fasteners under the base plate.
Is the Airtac LRM Miniature Linear Guide LRM12N2X495S10CPT the Right Guide?
Size both directions before you settle. Upwards: if the mass is heavy or cantilevered, LSH is the honest choice because its catalogue lists dynamic, static and moment ratings per carriage - figures LRM never publishes, so any LRM load question ends with us confirming the number for this exact model. Sideways: for a short slide where crossed-roller rigidity matters more than travel, look at LGC. For this bottom-mount set, run the checklist: complete set form, 12 mm rail width, standard carriage, two blocks, 495 mm length, preload C with its installation trade-off (tighter but less tolerant of surface error), accuracy P, and the bottom-mount direction - the seat, counterbores and screw access must be machined to match. Replacing a lone carriage? The pairing letter on the original governs.
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 LRM12N2X495S10CPT FAQ
One complete set: a 495 mm stainless rail, 12 mm wide, with two standard-length carriages already fitted, medium preload C and precision accuracy P. Nothing else is included - no second rail, no separate spares. The trailing T sets bottom-mount fixing: the mounting holes take screws from below, so plan the seat, the counterbores and the access before you order. If you later need a replacement carriage alone, note that carriage-only codes carry a pairing letter that must match the rail, and our carriage-only stock is very thin - most replacements are a special order.
Rail width 12 mm, rail length 495 mm, two standard carriages, preload C (medium), accuracy P (precision), bottom-mount fixing. Screw torque: M2 to 58.8 N.cm in steel, 39.2 in cast iron, 29.4 in aluminium; M3 to 196, 127 and 98 N.cm. Re-grease every 100 km of travel or every 3 to 6 months with a compatible grease - never mix types. Ambient limit 80 C, transient peaks 100 C. What you will not find anywhere: published load, moment or running-parallelism figures for LRM. We confirm those per model - send the RFQ.
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 LRM12N2X495S10CPT
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.