Airtac LRM Miniature Linear Guide LRM12L2X245S10AP
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X245S10AP 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 lengthLong carriage
- Carriages2
- Rail length245 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 LRM12L2X245S10AP
This complete LRM12 set pairs a 245 mm stainless-steel rail, 12 mm wide, with two long recirculating-ball carriages. Preload is grade A (none) and accuracy is grade P, the tighter of the two accuracy grades offered, so straight running along the travel is held to the finer grade in the catalogue. Top-mount fixing - no trailing T in the code - means the rail screws down from above, the fastest orientation to align and bolt.
Precision grade earns its keep where straightness shows up in the process: a measuring probe, a laser spot, an optical axis. The long carriage carries its recirculating balls over a greater span, which steadies any tipping moment at the tool. Inside, the balls are Japanese ISO 3290 G10 grade - that grade covers the balls only. A double-lip seal scrapes spent grease and keeps dust out, the outer cover shields the seal strip, and ball retention keeps the balls with the carriage during fitting. Ambient temperature must not exceed 80 C, with brief peaks to 100 C. Load and moment ratings are not published for LRM; ask us and we confirm the figures for this model before ordering.
Airtac LRM Miniature Linear Guide LRM12L2X245S10AP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X245S10AP |
|---|---|
| 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 | Long carriage |
| Carriages supplied | 2 |
| Rail length | 245 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 LRM12L2X245S10AP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X245 | 2 carriages on a 245 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, 245 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 LRM12L2X245S10AP Is Used
Solder-joint XY inspection stage
Two of these rails stacked into a compact XY stage under a camera on an AOI bench, moving PCBs for solder-joint inspection; the precision grade keeps the image steady across travel.
Fiber-coupling alignment slide
A fine slide aligning a fiber to a laser diode in an optoelectronics assembly rig, where precision-grade straightness keeps the coupling spot on target.
Desktop pick-and-place gantry
A small desktop pick-and-place gantry for electronic components: the long carriages span their ball contact over more length, steadying the head as it reaches off-axis.
Is the Airtac LRM Miniature Linear Guide LRM12L2X245S10AP the Right Guide?
If your calculation needs published numbers, step up to LSH: it lists dynamic, static and moment ratings per carriage, data that does not exist for LRM. If the travel is short and you need crossed-roller stiffness, LGC fits better. Checklist for this code: complete set, 12 mm rail width, long carriage, two on one rail, 245 mm rail length, preload A (free-running, so plan for a little clearance), precision P accuracy, top-mount rail. Rail length drives the price far more than rail width here, so trim travel before upsizing. Where two or more carriages share one rail, keep the datum face on the same side for better running accuracy. Confirm the load rating with us before committing.
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 LRM12L2X245S10AP FAQ
Rail width 12 mm, rail length 245 mm, two long carriages, preload A (none applied), accuracy P (precision grade), top-mount rail. Drive M3 screws to 196 N.cm in steel, 127 N.cm in cast iron or 98 N.cm in aluminium, into a ground or finish-milled face. Keep ambient temperature at or below 80 C with peaks to 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.
LRM is the small end of the range: a 12 mm rail for light-duty precision positioning where the envelope matters. LSH is larger and publishes per-carriage dynamic, static and moment ratings you can size against, which LRM does not - so for substantial or cantilevered loads, LSH is the safer engineering choice. For short travel needing crossed-roller rigidity, LGC fits instead. Ask us with your duty details and we will confirm the right series and the load figures for it.
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 LRM12L2X245S10AP
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.