Airtac LRM Miniature Linear Guide LRM12N2X245S10AP
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X245S10AP 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 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 LRM12N2X245S10AP
LRM12N2X245S10AP is the precision-accuracy version of the 245 mm, two-carriage 12 mm set. The final letter moves from H to P, and P is the tighter of the two accuracy grades published for LRM travel and height tolerances. Configuration: one 12 mm stainless-steel rail, 245 mm long, two standard carriages, no preload, 10 mm end-hole offset, top-mount fixing. The set arrives complete - rail and fitted carriages together.
Choose P when the machine's own accuracy budget is tight: a measuring fixture, an optics carrier, a placement head that must return to the same coordinates every cycle. The common-rail design means a replacement standard carriage shares this rail profile within the LRM series, and the double-lip seal plus outer cover protect the raceways from dust and light debris in indoor work. Mind the 80 C ambient ceiling with 100 C transients. Because AirTAC publishes no load or moment ratings for LRM, the capacity of this exact part is confirmed per model - send the RFQ and we will return the confirmed figures.
Airtac LRM Miniature Linear Guide LRM12N2X245S10AP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X245S10AP |
|---|---|
| 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 | 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 LRM12N2X245S10AP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard 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 LRM12N2X245S10AP Is Used
Optical alignment carrier
P-grade accuracy helps a lens or sensor carrier return to position on a benchtop alignment rig across the full 245 mm travel.
Dimensional checking fixture
A go/no-go measuring fixture for small machined parts uses the tighter P travel tolerance so the fixture's own error stays small next to the part tolerance.
Semiconductor die-handling stage
Light die-pick stages inside compact assembly tools run on miniature guides; keep the ambient below 80 C near any hotplate or curing station.
Is the Airtac LRM Miniature Linear Guide LRM12N2X245S10AP the Right Guide?
Match this code against your drawing point by point: complete set form, 12 mm rail width, standard carriage, carriage count 2, rail length 245 mm, preload grade A (none - simplest to mount, lowest drag), accuracy grade P, top-mount rail fixing, and no pairing code because the carriages come fitted. Then the two decisions that need judgement. First, load: LRM has no published ratings, so send us the RFQ and we confirm the dynamic, static and moment capacity for this exact model; if the numbers come back short, LSH is the series above and its catalogue does list per-carriage ratings you can calculate against. Second, guidance type: where travel is short and rigidity matters more than low friction, LGC crossed-roller guides are the alternative. Accuracy P costs more than H; buy it only when the machine's tolerance budget genuinely needs it.
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 LRM12N2X245S10AP FAQ
Complete set, 12 mm stainless-steel rail, 245 mm long, two standard carriages, no preload (A), P precision accuracy, top-mount fixing, 10 mm end-hole offset. The balls in the carriages are ISO 3290 G10 grade - a statement about the balls only, not an assembly standard or an accuracy grade for the guide. Grease: pre-filled with Kyodo Yushi PS No. 2, re-grease every 100 km of travel or every 3 to 6 months, charge quantities vary per model. Ambient limit 80 C, transient 100 C. Screw torque: M2 at 58.8 N.cm or M3 at 196 N.cm into steel. Load and moment ratings are not published for LRM; we confirm them per model before you order.
Buy P when the machine's accuracy budget is tight - metrology fixtures, optical carriers, repeatable placement - because P is the tighter of the two LRM grades. Do not look to P for strength: accuracy says nothing about capacity. If your load is significant or cantilevered, LSH is the better series because its catalogue publishes per-carriage dynamic, static and moment ratings you can size against; for short travels needing crossed-roller rigidity, compare LGC.
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 LRM12N2X245S10AP
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.