Airtac LRM Miniature Linear Guide LRM12L2X220S10AH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X220S10AH 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 length220 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 LRM12L2X220S10AH
This complete set pairs a 220 mm stainless-steel rail, 12 mm wide, with two long carriages of the LRM12 family, and the absence of a trailing T tells you the rail bolts down from the top. The long (L) carriage body spreads the ball contact over a longer footprint and stretches the effective bearing span, so a single rail with two of them already resists the rocking that a short block would let through. Mounting holes sit 10 mm from each rail end. You receive the rail and both carriages as one matched assembly, greased and ready to bolt to a ground or finish-milled surface.
Preload grade A means the factory leaves running clearance in place, which makes this the smoothest-running and most tolerant-to-fit version of the pair - a fair trade when the application values easy motion over zero-play rigidity. Accuracy is grade H, high. Inside, the recirculating balls are Japanese-made to ISO 3290 G10, a ball-grade only; the double-lip seal handles oil retention and dust, and the outer cover keeps chips off the seal strip. Keep the surroundings at or under 80 C, peaking briefly at 100 C. One thing to settle before purchase: load and moment ratings are not published for the LRM series, so we verify them for this exact configuration - raise the RFQ and we will come back with the confirmed figures.
Airtac LRM Miniature Linear Guide LRM12L2X220S10AH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X220S10AH |
|---|---|
| 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 | 220 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 LRM12L2X220S10AH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X220 | 2 carriages on a 220 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, 220 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 LRM12L2X220S10AH Is Used
Machine-vision camera carrier
Slides a compact camera over parts on an inspection bench; the no-preload fit gives the smoothest manual or belt-driven motion for framing shots, and high accuracy keeps the optical axis repeatable.
PCB component placement head rail
Guides a light placement head across a small circuit-board fixture; two long blocks on the 220 mm rail counter the tipping of an offset vacuum nozzle at the ends of travel.
Laboratory optical alignment slide
Positions mirrors and beam-splitter mounts on a prototype optical table; long carriages stocked as widely as standard ones means this low-friction configuration is an ordinary specification, not an exotic one.
Is the Airtac LRM Miniature Linear Guide LRM12L2X220S10AH the Right Guide?
Sizing logic: when the mass moved is significant or hangs off a cantilever, move up to AirTAC LSH, which publishes per-carriage dynamic, static and moment ratings you can calculate with - LRM offers no such table, and inventing one is not an option. For short travels where crossed-roller stiffness matters more than stroke, LGC is the better cross-over. Match checklist for this code: complete set, 12 mm rail, long carriage, two carriages, 220 mm rail, preload A (freest running, tolerant of fit-up), accuracy H, top-mount fixing - plus a confirmed load rating from us for the specific model 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 LRM12L2X220S10AH FAQ
One 12 mm wide stainless-steel rail, 220 mm long, with two long-body carriages fitted, top-mount fixing, no preload (A), high accuracy (H), end holes 10 mm from the rail ends. The carriages ship greased; re-grease through the rear lubrication hole every 100 km of travel or every 3 to 6 months - on a 200 mm stroke cycling once per second, 100 km arrives in roughly three weeks of continuous running, so the distance binds before the calendar. First-charge quantities across the series run 0.02 to 1.0 cm3 depending on model. Screw torques range from 29.4 to 196 N.cm by screw size and substrate. Ambient stays below 80 C. Load and moment ratings are not published for LRM; we confirm them per model before ordering - just ask.
If the duty is light and the space is tight, this LRM set - 12 mm rail, long carriages, high accuracy - is the natural pick. If the load has real weight or a cantilever arm, LSH is the honest answer because it publishes per-carriage dynamic, static and moment ratings you can size against, which LRM does not have at all. For short travels needing crossed-roller rigidity, look at LGC instead. Send us your load, moment and stroke and we will confirm which series and which rating apply.
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 LRM12L2X220S10AH
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.