Airtac LRM Miniature Linear Guide LRM12N2X495S10BH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X495S10BH 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 length495 mm
- AccuracyH — high grade
- PreloadB — light 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 LRM12N2X495S10BH
The LRM12N2X495S10BH arrives as a matched complete set: one 12 mm wide stainless-steel rail machined to 495 mm, with two standard-length recirculating-ball carriages fitted, top-mount fixing and a 10 mm end-hole offset. Nothing else is needed to mount and run it - just prepare the mating surface by grinding or finish milling first.
Light B preload is the free-running choice of LRM's three grades - A none, B light, C medium - trading a little rigidity for low breakaway drag, which suits axes driven by small steppers or moved by hand. At 495 mm this rail sits just short of half the 1005 mm full length AirTAC catalogues for size 12, and if travel grows later, spliced two-section rails are the route - they are supplied in H accuracy only, which this set already carries. Each carriage holds Japanese-made balls graded ISO 3290 G10, a ball grade and not a guide accuracy grade, retained against fallout and sealed by a double-lip wiper beneath an outer cover that keeps debris off the seal strip. Ambient temperature must stay at or below 80 C, peaking no higher than 100 C. AirTAC publishes no load or moment ratings for LRM; send the RFQ and we confirm the figures for this exact model.
Airtac LRM Miniature Linear Guide LRM12N2X495S10BH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X495S10BH |
|---|---|
| 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 | 495 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high grade |
| Preload grade | B — light 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 LRM12N2X495S10BH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X495 | 2 carriages on a 495 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| B | B — light 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, 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 LRM12N2X495S10BH Is Used
PCB test fixture shuttle
Moving fixture plates with pogo-pin boards between test positions on an ATE bench, where light preload keeps the drive motor small and motion gentles onto the contacts.
Desktop 3D scanner gantry
Carrying a camera and line-laser module across a 495 mm scan bed; two carriages on a single rail resist nodding at either end of the stroke.
Flat-panel inspection camera rail
Traversing a camera over display glass for pixel-level defect mapping, with H accuracy holding the optical path parallel to the panel edge.
Is the Airtac LRM Miniature Linear Guide LRM12N2X495S10BH the Right Guide?
Compare series before you commit: LSH is the step up when the load is heavy or hangs off a cantilever, because LSH publishes per-carriage dynamic, static and moment figures you can calculate with - LRM gives you none to work from. LGC is the step across for short travels where crossed-roller stiffness matters more than smooth ball running. Your checklist for this SKU: it is a complete set, 12 mm rail width, standard carriage length, two carriages on one 495 mm rail, B light preload (smoother running, more clearance under load), H high accuracy, top-mount, 10 mm offset; no pairing code applies to sets. Confirm the load and moment ratings with us before you order.
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 LRM12N2X495S10BH FAQ
Complete set on a 12 mm stainless rail, 495 mm long, two standard carriages, B light preload, H high accuracy, top-mount fixing, 10 mm end-hole offset. Tighten M3 screws to 196 N.cm in steel, 127 N.cm in cast iron, 98 N.cm in aluminium; M2 figures are 58.8, 39.2 and 29.4 N.cm. Ambient limit 80 C with transients to 100 C. Carriages ship greased with Kyodo Yushi PS No. 2; re-grease through the end port every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM - we confirm them per model when you enquire.
You receive one rail with both carriages already fitted - this is a complete set code, not a carriage-only code. The ball-retention design keeps balls captive during normal handling, but angling a carriage onto a rail or swapping one hastily can still drop balls, so plan on a dummy rail for field swaps. Worth noting before you rely on spares: we hold only a handful of carriage-only SKUs, so most replacement carriages are a special order matched by the pairing code printed on the original part.
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 LRM12N2X495S10BH
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.