Airtac LRM Miniature Linear Guide LRM12N1X495S10AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X495S10AHT is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriage. 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
- Carriages1
- Rail length495 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 LRM12N1X495S10AHT
LRM12N1X495S10AHT is the underside-fixed variant of a size 12 LRM miniature linear guide: a 495 mm stainless-steel rail, 12 mm across, bolted from below so its top face and both sides stay completely clear, with one standard recirculating-ball carriage fitted. It is the version to specify when the screw heads must not interrupt a surface that slides over the rail or collects debris.
With A preload (none), the carriage glides with the lightest drag in the LRM range, which suits hand-positioned fixtures and lightly driven axes - though a small amount of play is inherent to the grade. Handling deserves respect: the ball-retention design limits ball loss, but an angled insertion or a rushed carriage swap can still drop balls, and on an inclined mounting the carriage will slide off under its own weight, so hold it during fitting. Balls are ISO 3290 G10 grade - that applies to the balls alone, not the guide assembly - and the double-lip seal with outer cover protects the raceway. Ambient temperature must stay at or below 80 C, peaking no higher than 100 C. LRM carries no published load or moment ratings; send the RFQ and we will confirm the figures for this model.
Airtac LRM Miniature Linear Guide LRM12N1X495S10AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X495S10AHT |
|---|---|
| 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 | 1 |
| Rail length | 495 mm (spliced sections) |
| 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 LRM12N1X495S10AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X495 | 1 carriage on a 495 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, 495 mm |
| Carriage | Yes, 1 |
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 LRM12N1X495S10AHT Is Used
Camera slider on a test fixture
A camera or sensor carriage traversing a 495 mm inspection fixture; bottom mounting leaves a flush top surface so the slider body passes over the rail without snagging.
Sample cassette transfer slide
Moving sample cassettes between stations in a compact laboratory transport line, where the free-running preload-A carriage follows light push force from a small actuator or an operator.
Retrofit slide for a small machine jig
Adding a linear axis to an existing jig or workshop fixture when only the underside of the mating plate is accessible - bottom-mount holes let the rail be secured without machining the visible face.
Is the Airtac LRM Miniature Linear Guide LRM12N1X495S10AHT the Right Guide?
Decide the series before the code. If the load is sizeable or hangs off a cantilever, step up to LSH - it publishes per-carriage dynamic, static and moment ratings you can actually design against, which LRM never does. If travel is short and crossed-roller rigidity is the goal, compare LGC instead. For this SKU, work through the checklist: complete set with rail, 12 mm rail width, standard carriage, one carriage, 495 mm rail length, A preload (free-running; choose C instead if you need play taken up and can hold tighter surface tolerances), H accuracy, bottom-mount direction. If you are replacing a carriage on an existing rail rather than buying a new axis, that is a carriage-only order keyed to the pairing code on the original - carriage-only stock is thin with us, so plan for a special order. Confirm the load rating with us before finalising the design.
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 LRM12N1X495S10AHT FAQ
LRM is the miniature, light-duty family: this set gives you a 12 mm wide, 495 mm long stainless rail with one standard carriage in H accuracy and no preload, in a tight envelope. LSH is a larger series whose catalogue publishes per-carriage dynamic, static and moment ratings - figures LRM does not provide at all. So if your application has real weight or an overhung load that you must justify on paper, LSH is the honest starting point. If the job is smooth, light positioning in a small space, this LRM set fits. Either way, send us the load case on the RFQ and we will confirm the right model and its ratings.
Rail width 12 mm, rail length 495 mm, one standard-length carriage, preload A (none), accuracy H, bottom-mount fixing, 10 mm end-hole offset. Screw torques: M3 - 196 N.cm steel, 127 N.cm cast iron, 98 N.cm aluminium; M2 - 58.8 / 39.2 / 29.4 N.cm. Ambient temperature must not exceed 80 C, with transient peaks to 100 C. The carriage is factory-greased with Kyodo Yushi PS No. 2; re-grease after every 100 km of travel or every 3 to 6 months, whichever comes first. Dynamic, static and moment load ratings are not published for LRM - we confirm them per model on request.
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 LRM12N1X495S10AHT
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.