
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X495S10CHT 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.
This complete set fixes its 12 mm wide, 495 mm long stainless rail from underneath - that is the trailing T in LRM12N1X495S10CHT - so the mounting screws live below the rail and the running face is left unbroken for whatever rides above it. A single standard carriage with medium preload C and high accuracy H runs on it, a combination chosen where repeatable positioning counts more than a friction-free glide.
Because preload C is the least tolerant of seat errors, installation discipline matters: torque the M3 screws to 196 N.cm into steel (127 into cast iron, 98 into aluminium), and work the carriage along the rail gently rather than snappily - the ball-retention design helps, but balls can still drop if the carriage is angled on or swapped hastily, and a dummy rail is the careful fitter's tool. Store any spare set flat, coated with rust-preventive oil and bagged away from heat and humidity. Load and moment ratings are absent from the published data; we confirm the capacity for this specific model through the RFQ before you commit.
| Model | Airtac LRM Miniature Linear Guide LRM12N1X495S10CHT |
|---|---|
| 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 | 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.
| 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. |
| C | C — medium preload — higher preload raises rigidity and tightens how flat the mounting surface must be. |
| H | H — high grade. |
| 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.
A camera carriage gliding above the rail inspects screw head geometry on a sorting line, and the unbroken top face keeps the optics mounted flush with nothing to foul them.
A light feed table for fine wire holds position against pull-off forces thanks to the medium preload, while under-rail fixing keeps the working surface completely clear.
A label applicator traversing packs on a small line uses the full 495 mm stroke, and with screws below the rail nothing protrudes into the label path.
Pick LRM here for the tight envelope and smooth light-duty travel, not for a heavy load: when the load is substantial or cantilevered, LSH publishes the dynamic, static and moment ratings per carriage that LRM does not, and LGC covers short travels where crossed-roller stiffness is the priority. Ordering checklist: set form, 12 mm rail width, standard carriage, one carriage, 495 mm rail, preload C, accuracy H, bottom-mount fixing. Then confirm the load rating with us - a five-minute check that prevents an undersized guide reaching your machine.
Quick checklist
A complete set: one 12 mm wide, 495 mm long stainless rail with one standard carriage pre-fitted, preload C (medium), accuracy H (high), bottom-mount (T) fixing. M3 fixing screws torque to 196 N.cm into steel. Ambient limit is 80 C, with peaks to 100 C. Re-grease every 100 km or every 3 to 6 months with Kyodo Yushi PS No. 2 or equivalent - never mix lubricant types. Load and moment ratings are not published for LRM; ask us and we confirm them for this model.
A complete set - the 495 mm stainless rail with one carriage pre-fitted, not a separate rail and block. Keep the carriage square when fitting it and avoid rapid fit-and-remove cycles: the ball retainer helps, but angling the carriage can still drop balls, and a dummy rail is the safe way to swap carriages. Never dismantle the carriage or strike the rail, since hidden damage still costs accuracy. Carriage-only spares are a thin special-order category here, so treat this set as a unit and handle it accordingly.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
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.