Airtac LRM Miniature Linear Guide LRM12N2X120S10CP
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X120S10CP 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 length120 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 LRM12N2X120S10CP
LRM12N2X120S10CP is a complete miniature guide set built on a 12 mm wide, 120 mm long stainless rail with a 10 mm end-hole offset, carrying two standard carriages fixed from the top. It is the firmest variant of this 120 mm family: preload code C is the medium grade, the stiffest LRM offers, which removes play for a more rigid feel at the cost of slightly higher running friction and less tolerance of mounting misalignment.
The carriages ride on ISO 3290 G10 grade balls - that grade applies to the balls only, not the assembly - retained so they do not spill during handling, and protected by a double-lip seal under an outer cover. Having two carriages on one rail also helps resist tipping along the direction of travel, a useful trait when the tool sits above the carriage centreline. The rail is stainless steel; ambient heat must stay within 80 C, peaking no higher than 100 C briefly. Because LRM publishes no load or moment ratings, the capacity of this set is confirmed model by model - ask us through the RFQ and we will verify it against your application.
Airtac LRM Miniature Linear Guide LRM12N2X120S10CP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X120S10CP |
|---|---|
| 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 | 120 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 LRM12N2X120S10CP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X120 | 2 carriages on a 120 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, 120 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 LRM12N2X120S10CP Is Used
Shop-floor gauge fixture slide
A go/no-go checking fixture on a production line where the sensing head must return to the same position every cycle - medium preload C keeps the motion free of play.
Optical filter changer
An automated microscope or sensor head that swaps filters into the beam path, needing repeatable seating of each filter with no slop in the carriage.
Small-parts feeder pusher
A repetitive feed mechanism advancing components one at a time into an assembly station, where the stiff, play-free carriage keeps each push consistent.
Is the Airtac LRM Miniature Linear Guide LRM12N2X120S10CP the Right Guide?
When the tool is heavy or overhangs the carriage, move to AirTAC LSH, whose catalogue lists dynamic, static and moment ratings per carriage - data LRM does not print, so any figure for this set has to come from us. Short-travel axes that need crossed-roller rigidity belong on LGC instead. Before ordering, tick off: set form, 12 mm rail, standard carriage, two blocks, 120 mm rail length, medium preload C and its tighter demands on ground or finish-milled mounting surfaces, accuracy P, top mounting, and a confirmed load figure - send us the application and we will verify the rating for this configuration.
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 LRM12N2X120S10CP FAQ
Published: a 12 mm wide stainless rail cut to 120 mm with a 10 mm end offset, two standard carriages on top-mount fixing, medium preload C and precision grade P. M3 screws go to 196 N.cm into steel, 127 into cast iron, 98 into aluminium. The environment must stay within 80 C ambient, with short peaks to 100 C, and lubrication is refreshed every 100 km of travel or every 3 to 6 months. The catalogue prints no load, moment or running-parallelism figures for LRM - we verify capacity for this model when you enquire.
It does: the 120 mm rail and its two standard carriages are supplied together as one assembled unit, factory-filled with Kyodo Yushi PS No.2 grease. Do not dismantle the carriages or slide them off the rail without need - angled or hasty fitting can drop balls despite the retainer, and a dummy rail helps during swaps. A spare carriage alone is an LRM12BK- code matched by pairing letter, and carriage-only availability is thin, so plan replacements with us early.
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 LRM12N2X120S10CP
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.