Airtac LRM Miniature Linear Guide LRM12N2X210S12.5AH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X210S12.5AH 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 length210 mm
- AccuracyH — high 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 LRM12N2X210S12.5AH
This LRM12N2X210S12.5AH is a ready-made miniature guide assembly: a 12 mm stainless-steel rail, 210 mm end to end, holes drilled 12.5 mm from the ends, with two standard recirculating-ball carriages already seated on it. It bolts down from the top - the plain, no-suffix mounting direction - onto a ground or finish-milled surface.
Two blocks on a single rail is the configuration that resists tipping along the direction of travel, which matters on short, snappy moves. Set the datum face on the same side of the rail for both carriages and running accuracy improves; either side of the rail may serve as the datum. Ball retention keeps the ISO 3290 G10 Japanese-made balls in the carriage while you handle it, the double-lip seal manages oil retention and dust, and the outer cover hides the screws and guards the seal strip. Keep ambients at or below 80 C, peaks 100 C. Load and moment ratings are not published for the LRM series; we confirm the figures for this model against your application - raise the RFQ.
Airtac LRM Miniature Linear Guide LRM12N2X210S12.5AH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X210S12.5AH |
|---|---|
| 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 | 210 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high 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 LRM12N2X210S12.5AH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X210 | 2 carriages on a 210 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. |
| H | H — high grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 210 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 LRM12N2X210S12.5AH Is Used
Benchtop pick-and-place head
A small SMT bench cell moving a vacuum head between feeder and board gains anti-tip stability from two blocks spaced along one 210 mm rail.
Belt-driven micro feed axis
In a compact marking or labelling unit, this rail carries the carriage a toothed belt sweeps back and forth across the 210 mm span.
Connector crimping jig slide
Sliding a crimp die or fixture into its work position, with preload A keeping the slide easy for an operator to move by hand.
Is the Airtac LRM Miniature Linear Guide LRM12N2X210S12.5AH the Right Guide?
If your load is heavy or reaches out on a cantilever, LSH is the series with the published per-carriage dynamic, static and moment ratings to size against - LRM offers no such table, which is why its figures are confirmed per model. Short travel needing crossed-roller stiffness points to LGC instead.
Checklist for this code: complete set, 12 mm rail width, standard carriage length, two blocks, 210 mm rail, preload A with the easy-fit, most-free-play trade-off, accuracy H, top-mount. If you are still choosing a rail width, note that size 12 is by far the most widely listed LRM size in our range, so a 12 mm layout keeps more length, preload and accuracy combinations open than 15 mm does. Confirm the load rating with us before you commit.
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 LRM12N2X210S12.5AH FAQ
It is a two-block set on a 12 mm wide, 210 mm long stainless rail with top-mount fixing holes 12.5 mm from each end. Carriages are standard length; preload is grade A (none) and accuracy grade H (high). Mount with M3 screws: 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminium. Regrease every 100 km of travel or every 3 to 6 months; ambient ceiling 80 C, brief peaks 100 C. AirTAC publishes no load or moment ratings for LRM - we confirm them for this specific model on enquiry.
Decide by what you need to prove. LSH prints dynamic, static and moment ratings per carriage, so if your design review needs verified capacity numbers, that is the series with the paperwork. LRM, this set included, wins where the envelope is tight, the duty is light and smoothness matters; its capacity is real but unlisted, and we confirm it per model. Ask us with your load, mounting span and duty cycle, and we will point you at the right series.
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 LRM12N2X210S12.5AH
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.