Airtac LRM Miniature Linear Guide LRM12N2X320S10CPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X320S10CPT 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 length320 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 LRM12N2X320S10CPT
LRM12N2X320S10CPT is a complete AirTAC LRM miniature linear guide set in its firmest stocked trim: a 320 mm stainless-steel rail, 12 mm wide, with two standard-length recirculating-ball carriages supplied mounted and pre-greased, specified with medium preload (C), P precision accuracy and bottom-mount rail fixing. Everything needed for the guide function arrives as one assembly; you add the prepared mounting seat and the fasteners.
Preload C is the rigid choice: internal clearance is removed so the stage feels tight and holds position under light tool forces, but running drag is higher and the mounting surface must be flatter and truer than a clearance-fit set would demand - budget for ground or finish-milled seats. Inside each carriage, Japanese ISO 3290 G10 balls (the grade covers the balls alone) circulate behind a double-lip seal under an outer cover that shields the seal strip and screw heads. Keep ambient temperature at or below 80 C, peaking no higher than 100 C. Load and moment ratings are not published for LRM; we confirm the figures for this exact model before you commit - send the RFQ.
Airtac LRM Miniature Linear Guide LRM12N2X320S10CPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X320S10CPT |
|---|---|
| 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 | 320 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 LRM12N2X320S10CPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X320 | 2 carriages on a 320 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, 320 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 LRM12N2X320S10CPT Is Used
Laser focusing axis
A compact laser marker's focusing stage runs a short, precise stroke; this set's C preload and P accuracy hold the lens axis steady, and the 80 C ambient ceiling is checked against head heat.
Wafer inspection scan rail
On a benchtop semiconductor inspection fixture, the bottom-mounted 320 mm rail leaves the top surface clear so a camera carriage can scan wafers without screw heads shadowing the optics or collecting debris.
Connector press-fit slide
A small electronics assembly cell pressing board connectors benefits from two carriages under one head, which resist tipping along the stroke so pins enter housings square.
Is the Airtac LRM Miniature Linear Guide LRM12N2X320S10CPT the Right Guide?
Check six things before committing: form (complete set, not carriage only), 12 mm rail width, standard carriage length, two carriages on a 320 mm rail, preload C, and P precision accuracy with bottom-mount fixing. Preload C suits a stage that must not wobble under cutting or measuring forces, but your mounting faces need to be ground or finish-milled to hold it, and the higher drag shortens the practical re-grease interval. If the load is substantial or cantilevered, step up to LSH: that series publishes per-carriage dynamic, static and moment ratings you can actually size against, which LRM does not. For short travel needing crossed-roller rigidity, look across to LGC. Confirm the load rating with us before ordering - we will pull the figure 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 LRM12N2X320S10CPT FAQ
It is a complete set: 12 mm wide stainless rail, 320 mm long, carrying two standard-length carriages, with medium preload (C), P precision accuracy and bottom-mount rail fixing. Tighten the M3 rail screws to 196 N.cm in steel, 127 N.cm in cast iron or 98 N.cm in aluminium. Keep ambient temperature at or below 80 C, peaking no higher than 100 C, and re-grease 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 - ask us before ordering.
Take LRM when the envelope is small and the duty light: this 12 mm, two-carriage set is precise and compact, and size 12 makes up the great majority of our stock, so it ships fastest. Move to LSH when the load is substantial or cantilevered - LSH publishes per-carriage dynamic, static and moment ratings you can size against, which LRM does not, so with LRM we confirm the figures for you. For short travel demanding crossed-roller rigidity, LGC is the alternative. In every case, send the RFQ and we will confirm capacity before you order.
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 LRM12N2X320S10CPT
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.