Airtac LRM Miniature Linear Guide LRM12N1X320S10AP
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X320S10AP is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriage. 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
- Carriages1
- Rail length320 mm
- AccuracyP — precision grade
- PreloadA — no 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 LRM12N1X320S10AP
This SKU is a complete LRM12 miniature linear guide set: a 12 mm wide stainless-steel rail cut to 320 mm, carrying one standard-length recirculating-ball carriage. The end mounting holes sit 10 mm in from the rail ends, so fixing down does not eat into usable travel. Nothing else is needed to make a working guide - rail and carriage arrive assembled and pre-greased with Kyodo Yushi PS No. 2.
This is the precision-grade version, suffix P, the tighter of the two accuracy grades AirTAC offers on LRM, and it is a top-mount rail, clamped from above through its own holes. The balls inside the carriage are graded ISO 3290 G10 - a grade that applies to the balls alone, not to the assembled guide - held captive by a ball-retention design, wiped by a double-lip seal and sheltered by an outer cover. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C, which is worth checking next to a laser diode or a curing lamp. No load, moment or speed figure is published for LRM; we confirm the ratings for this exact part number before you commit - send the RFQ and we will come back with the numbers.
Airtac LRM Miniature Linear Guide LRM12N1X320S10AP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X320S10AP |
|---|---|
| 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 | 1 |
| Rail length | 320 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision grade |
| Preload grade | A — no 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 LRM12N1X320S10AP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X320 | 1 carriage on a 320 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| A | A — no 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, 1 |
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 LRM12N1X320S10AP Is Used
Die inspection stage
A semiconductor die-inspection microscope moves a few tens of millimetres per axis. A 12 mm precision-grade rail with no preload gives friction-free, repeatable positioning under a lab technician's hand or a small stepper.
Laser beam alignment
Aligning a laser path on an optical bench means nudging a mirror or lens holder by fractions of a millimetre. This top-mount set bolts flat to the breadboard and the P grade keeps the carriage tracking true over its 320 mm stroke.
Metrology lab fixture
In a quality lab, a comparator or height-measuring slide built on this 320 mm rail gets the tighter P-grade running accuracy that measurement fixtures depend on.
Is the Airtac LRM Miniature Linear Guide LRM12N1X320S10AP the Right Guide?
Size upward when the load becomes substantial or overhung: LSH is the larger series and publishes per-carriage dynamic, static and moment ratings you can put straight into a calculation, which LRM does not - one more reason to confirm LRM loads with us first. If travel is short and the job demands crossed-roller rigidity instead, LGC is the cross-series alternative. Before ordering, check off: complete-set form, 12 mm rail width, standard carriage length, one carriage, 320 mm rail, preload A (the friction-free choice, but the loosest internally), accuracy P, top-mount fixing, and a confirmed load rating from us.
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 LRM12N1X320S10AP FAQ
It is a complete set: 12 mm rail width, 320 mm rail length, one standard-length carriage, preload A (none), accuracy grade P, top-mount rail, end holes 10 mm from the rail ends. Fixing screws take 58.8 N.cm into steel, 39.2 into cast iron and 29.4 into aluminum for M2, or 196, 127 and 98 N.cm for M3. Ambient temperature limit is 80 C, with peaks to 100 C. 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 for this exact part number before you order.
One assembled miniature guide: the 320 mm stainless-steel rail with the single P-grade carriage already mounted, pre-filled with Kyodo Yushi PS No. 2. Mounting screws are not included, and we stock no bolt-cap packs or rail-only lengths - those are orderable items. Before first use, wipe off the rust-preventive oil, apply fresh lubricant through the hole at the rear of the carriage, and stroke the carriage until an even film shows on the rail.
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 LRM12N1X320S10AP
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.