Airtac LRM Miniature Linear Guide LRM12L2X495S10CH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X495S10CH 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 length495 mm
- AccuracyH — high grade
- PreloadC — medium 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 LRM12L2X495S10CH
The LRM12L2X495S10CH is a complete miniature linear guide: one 12 mm wide stainless-steel rail, 495 mm long, carrying two long (L) recirculating-ball carriages. The fixing holes start 10 mm in from each rail end, and the carriages arrive on the rail, ready to bolt down from the top.
Two long carriages on one rail is the layout for a load that sits above the carriage top and wants to tip as it moves: the extended body spreads contact over more balls, and the paired blocks give a wider stance against pitching. Inside each carriage the balls are grade ISO 3290 G10, Japanese made, so every ball runs round and true; a double-lip seal scrapes lubricant back where it belongs, and an outer cover hides the screws and shields the seal strip from swarf. Preload C (medium) takes out the play for a firmer feel. The manufacturer publishes no load or moment ratings for LRM, so the figures for this exact set are confirmed when you send us the RFQ. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C.
Airtac LRM Miniature Linear Guide LRM12L2X495S10CH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X495S10CH |
|---|---|
| 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 | 495 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high grade |
| Preload grade | C — medium 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 LRM12L2X495S10CH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X495 | 2 carriages on a 495 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| C | C — medium 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 LRM12L2X495S10CH Is Used
Glue-Dispensing Gantry Axis
A compact dispensing head travelling over a PCB panel stays square to the work on twin long blocks, with the 495 mm rail covering the panel in a single pass.
Connector Test Nest Feed
A light slide that ferries populated connectors between an assembly nest and a test head benefits from the paired carriages, which counter the tipping of an off-centre gripper.
Microplate Shuttle on a Lab Deck
Moving 96-well plates between a reader and an incubator is exactly the light, smooth, repeatable duty a 12 mm miniature guide with G10-grade balls is made for.
Is the Airtac LRM Miniature Linear Guide LRM12L2X495S10CH the Right Guide?
Size 12 is where our LRM stock lives: 924 of the 988 sets we hold are this rail width, and long carriages are stocked just as deeply as standard ones, so a 495 mm twin-block set like this is rarely a wait. Across the range, price tracks rail length and carriage count far more than rail width, so trimming travel is the cheapest way to cut cost. If the load turns out to be substantial or overhung, move up to AirTAC LSH, which publishes per-carriage dynamic, static and moment ratings you can size against - LRM does not. For very short travel that needs crossed-roller rigidity, LGC is the better cross. Before ordering, confirm: set versus carriage only, 12 mm rail, long carriage, two blocks, 495 mm rail length, preload C (stiffer, but less tolerant of imperfect mounting surfaces), grade H accuracy, top-mount fixing - and confirm the load rating with us.
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 LRM12L2X495S10CH FAQ
Rail width 12 mm, rail length 495 mm, two long carriages, preload C (medium), accuracy grade H, rail fixed from the top with a 10 mm end-hole offset. Cap screws torque to 196 N.cm into steel, 127 N.cm into cast iron and 98 N.cm into aluminium for M3; for M2 screws use 58.8, 39.2 and 29.4 N.cm. Ambient temperature must not exceed 80 C, with peaks to 100 C. Re-grease every 100 km of travel or every 3 to 6 months, whichever comes first. Load and moment ratings are not published for LRM; we confirm them for this model - send the RFQ.
Pick LRM when the envelope is tight and the duty is light: a 12 mm rail with smooth recirculating-ball travel and a small footprint. Pick LSH when the load is heavy or cantilevered, because LSH publishes dynamic, static and moment ratings per carriage that you can calculate against, while the LRM figures are confirmed per model through us. If the travel is very short and you need crossed-roller stiffness, look at LGC instead.
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 LRM12L2X495S10CH
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.