Airtac LRM Miniature Linear Guide LRM12N2X220S10CPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X220S10CPT 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 length220 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 LRM12N2X220S10CPT
LRM12N2X220S10CPT pairs a 220 mm, 12 mm wide stainless-steel rail with two standard carriages, built to precision grade P and arranged for bottom-mount fixing. The T at the end of the code means the screw pattern faces downward: the guide bolts up under a plate, which suits frames where the top face is the working surface or simply out of reach.
Preload C is the firmest grade on this series; it locks out internal play but asks more of the mounting faces, which should be ground or finish-milled to hold the grade-P travel accuracy. Ball retention keeps the Japanese ISO 3290 G10 balls in the carriage while you work, and the double-lip seal plus outer cover shield the raceways from swarf and dust. Carriages ship greased with Kyodo Yushi PS No. 2; top up through the rear lubrication hole every 100 km of travel or every 3 to 6 months, and never mix lubricant types. Keep the environment below 80 C. Load and moment figures are not published for LRM - we confirm them per model when you enquire.
Airtac LRM Miniature Linear Guide LRM12N2X220S10CPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X220S10CPT |
|---|---|
| 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 | 220 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 LRM12N2X220S10CPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X220 | 2 carriages on a 220 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, 220 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 LRM12N2X220S10CPT Is Used
IC test-handler actuator slide
Mounted under a socket press plate in a small IC test handler, the underside fixing keeps the top plate uncluttered while grade-P tolerances hold the actuator aligned with the socket.
Laser module alignment stage
A precision-grade carriage under an alignment optic gives repeatable fine positioning; plan the layout so heat sources keep the guide under its 80 C ambient limit.
Vial-capping head on a benchtop line
Twin carriages beneath a small capping head absorb the rocking that a single block would allow, and the medium preload keeps the head square as it presses home each cap.
Is the Airtac LRM Miniature Linear Guide LRM12N2X220S10CPT the Right Guide?
If your load case is substantial or hangs off a cantilever, the honest move is LSH: it publishes dynamic, static and moment ratings per carriage that you can plug straight into a calculation, something LRM does not offer. Where travel is short and stiffness must come from crossed rollers, choose LGC. For this LRM code, work through the checklist: complete set form, 12 mm rail width, standard carriage length, two carriages, 220 mm rail length, preload C with the trade-off that rigid running demands cleaner, flatter machined faces, grade P accuracy, bottom-mount direction, and a load rating confirmed with us for this specific model before you commit.
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 LRM12N2X220S10CPT FAQ
The published facts: 12 mm stainless-steel rail, 220 mm long, two standard carriages, preload C (medium), accuracy grade P (precision), bottom-mount fixing. Torque M3 screws to 196 N.cm in steel, 127 N.cm in cast iron, 98 N.cm in aluminium. Ambient temperature limit is 80 C with 100 C transient peaks, and the lubrication interval is 100 km of travel or 3 to 6 months, whichever comes first. Load ratings, moment ratings and running parallelism are not published for LRM - we confirm the figures for this model when you send an RFQ.
Whenever the load is more than light or sits on an overhang. LSH comes with published per-carriage dynamic and static ratings plus allowable moments, so you can verify safety margins on paper. LRM, including this model, has no published ratings, so sizing depends on us confirming figures for the specific code. For a compact, light-duty slide like this bottom-mount set, LRM wins on footprint, smoothness and precision; for heavier structural duty, move up to LSH.
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 LRM12N2X220S10CPT
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.