Airtac LRM Miniature Linear Guide LRM12N2X495S10CH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X495S10CH 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
- 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 LRM12N2X495S10CH
The LRM12N2X495S10CH is a complete LRM miniature linear guide in the stiffest running configuration the series offers: two standard-length carriages on a 495 mm stainless-steel rail 12 mm wide, held with C medium preload and supplied in H high accuracy, top-mounted through a 10 mm end-hole offset. Grind or finish-mill the mounting face before fitting, as flatness under preload is what delivers the rated travel accuracy.
C is the firmest preload grade AirTAC offers on LRM - there is no heavier option in the series - so the carriages sit with the least clearance and resist deflection best, at the cost of higher drag and a stricter demand on surface quality. Two carriages on one rail also resist tipping along the direction of travel, which matters on any overhung small head. Within each carriage, Japanese-made balls to ISO 3290 G10, a grade for the balls only, run behind a double-lip seal beneath an outer cover that shields the seal strip and hides the screws. Ambient temperature must stay at or below 80 C with peaks no higher than 100 C. Because AirTAC publishes no load or moment ratings for LRM, we confirm the figures for this exact configuration when you send the RFQ.
Airtac LRM Miniature Linear Guide LRM12N2X495S10CH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X495S10CH |
|---|---|
| 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 | 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 LRM12N2X495S10CH
| 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. |
| 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 LRM12N2X495S10CH Is Used
Go/no-go metrology fixture
Carrying a gauge or sensor in an inspection fixture where medium preload minimizes clearance so pass-fail readings stay repeatable shift after shift.
Wire-harness test sled
Traversing a probe carriage along a harness laid out on a test board; two carriages keep the probe head from nodding as it reaches the stroke ends.
Small-parts press cell guide
Guiding a light manual press head in a benchtop assembly cell, where the firm preload keeps the tool square to the part through each cycle.
Is the Airtac LRM Miniature Linear Guide LRM12N2X495S10CH the Right Guide?
When the load is more than light or hangs on a cantilever, step up to LSH: it publishes per-carriage dynamic, static and moment ratings that LRM simply does not, so sizing on paper is only possible in LSH. For short travels where crossed-roller rigidity beats ball recirculation, LGC is the alternative. Before ordering this set, work the checklist: set form, 12 mm rail, standard carriage, count of two, 495 mm rail length, C medium preload (rigid, less forgiving of misalignment), H high accuracy, top-mount, 10 mm offset - and confirm the load and moment ratings with us first. Price note: across the LRM range, rail length and carriage count move the price far more than rail width, so trimming travel usually saves more than down-sizing the rail.
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 LRM12N2X495S10CH FAQ
12 mm rail width, 495 mm rail length, two standard carriages, C medium preload, H high accuracy, top-mount, 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 and 29.4 N.cm. Ambient temperature limit 80 C, transients to 100 C. Factory grease is Kyodo Yushi PS No. 2; re-grease every 100 km of travel or every 3 to 6 months - a 200 mm stroke cycling once per second covers that 100 km in roughly three weeks, so distance binds before the calendar does. Load and moment ratings are not published for LRM and are confirmed per model on enquiry.
LRM offers three grades - A none, B light, C medium - and C is the stiffest available; there is no heavy grade in this series. Choosing C means the least internal clearance and the best resistance to deflection, but higher breakaway drag and a tighter flatness demand on the ground or finish-milled mounting surface. Here it pairs with H high accuracy and two standard carriages for tip resistance along the travel. Whatever the preload, AirTAC publishes no load or moment ratings for LRM, so we confirm the figures for this model via the RFQ route.
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 LRM12N2X495S10CH
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.