Airtac LRM Miniature Linear Guide LRM12N2X245S10APT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X245S10APT 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 LRM12N2X245S10APT
The rarest combination in this group: LRM12N2X245S10APT pairs P-grade precision accuracy with bottom-mount fixing on a 12 mm, 245 mm rail carrying two standard carriages, no preload, 10 mm end-hole offset. Nothing else in the code changes - one stainless-steel rail and two recirculating-ball carriages shipped as a matched set.
This pairing suits a precision subassembly built upside down or recessed into a baseplate, where the tightened rail must not protrude above its seat. Handling still needs care: do not strike or drop the rail, because a knock can affect accuracy with no visible damage, and the 80 C ambient limit (100 C transient) stands. The balls inside each carriage are ISO 3290 G10 grade - a statement about the balls alone. As with every LRM code, no load or moment rating is published; we confirm the numbers for this configuration before you order, so send the RFQ early in the design.
Airtac LRM Miniature Linear Guide LRM12N2X245S10APT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X245S10APT |
|---|---|
| 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 (spliced sections) |
| 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 LRM12N2X245S10APT
| 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 LRM12N2X245S10APT Is Used
Microscope focus carriage
A bottom-fixed precision rail under a benchtop microscope's focus bridge keeps fastener heads below the optical plane and out of the image path.
Precision dispensing head slide
A laboratory dispenser that must land repeatably benefits from P accuracy, though the carried mass should be checked against our confirmed per-model rating first.
Laser module positioning bed
Aligning a small laser module on a recessed baseplate suits bottom-mount fixing; keep transient temperatures under 100 C near the diode driver.
Is the Airtac LRM Miniature Linear Guide LRM12N2X245S10APT the Right Guide?
Two things decide this purchase. The first is geometry: bottom-mount fixing and a 245 mm, 12 mm rail with two standard carriages, zero preload and P accuracy for tight travel tolerances - check each of those against your drawing, and remember the mounting surface must be ground or finish-milled for the rated accuracy to mean anything. The second is capacity: because LRM publishes no load or moment ratings, the only safe path is to confirm the figures with us for this exact code before ordering; a cantilevered or heavy load belongs on LSH, whose catalogue does publish per-carriage dynamic, static and moment ratings, while a short-travel job needing crossed-roller stiffness belongs on LGC. If you are replacing a single carriage rather than buying a set, note that carriage-only stock is thin and usually a special order - send us the pairing code off the original part.
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 LRM12N2X245S10APT FAQ
One 12 mm wide, 245 mm long stainless-steel rail and two standard recirculating-ball carriages, factory-fitted and pre-greased - a complete matched set, not a rail plus loose parts. Preload grade is A (none), accuracy grade P, fixing is bottom-mount via the trailing T, and the end-hole offset is 10 mm. At this length the rail is a single piece, not a spliced pair. Ambient ceiling is 80 C with 100 C transients; re-grease every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM - request the RFQ and we confirm the figures for this exact configuration.
Decide on ratings, not shape. LRM wins on envelope: a 12 mm rail in a tight, light-duty positioning role, which is exactly what this code is. LSH wins when you need numbers to design with, because its catalogue publishes dynamic, static and moment ratings per carriage and LRM's does not - so if your structure hangs a real load off the carriage, size it on LSH. Crossed-roller LGC covers short travels where rigidity beats low friction. Whichever way you lean, confirm the load rating with us for the specific model before committing.
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 LRM12N2X245S10APT
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.