
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X795S10AH 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.
LRM12N2X795S10AH is a complete twin-carriage guide: a 12mm stainless steel rail 795mm long, two standard-length blocks, preload grade A (none) and H high accuracy, with the end holes offset 10mm from the rail tips. What arrives is the rail with both carriages mounted - a finished mechanical axis ready to bolt down, with no air, no pressure and no pneumatic function anywhere in it.
With two carriages on one rail, put the datum face on the same side of both slides and the same side of the base; the catalogue notes this measurably improves running accuracy. Handling deserves care at this length: on an inclined rail a carriage can slide off under its own weight, so hold both blocks while positioning, and never strike or drop the rail, since accuracy can suffer with no visible damage. The carriages run on Japanese-made ISO 3290 G10 balls - a grade for the balls alone, not an assembly standard - kept captive by the retention design and protected by double-lip seals beneath an outer cover. Ambient temperature limit is 80C with 100C peaks. Load and moment figures are not published for LRM; message us and we will confirm the rating for this 795mm configuration via the RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12N2X795S10AH |
|---|---|
| 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 | 795 mm |
| 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.
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X795 | 2 carriages on a 795 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. |
| This order | Complete guide set |
|---|---|
| Rail | Yes, 795 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.
Traversing an optical fiber chuck along a bench for splice and connector alignment, where a lightly preloaded twin-block rail holds position without stiction.
A small marking head sliding over coupon samples on a benchtop laser - light loads, long rail, and the 80C ambient limit kept in mind near the source.
Moving a target block along a calibrated track to verify dial gauges and proximity sensors, using the H-grade accuracy of a 12mm miniature guide.
When the duty is heavy or overhung, LSH is the correct step up - its catalogue lists dynamic, static and moment ratings per carriage that you can engineer against, which is exactly the table LRM does not have, so an LRM decision always closes with a rating we confirm for your model. For short travel where frame stiffness matters more than stroke, LGC crossed-roller guides are the stiffer alternative. Check before you order: complete set or spare carriage, 12mm rail, standard carriage length, two blocks, 795mm rail, preload A (the easy-sliding grade, at the cost of some rigidity), H accuracy, top-mount fixing, and a load rating confirmed with us through the RFQ. Machine the seat ground or finish-milled, keep both datum marks on one side, and note that a 795mm rail still sits well inside the 1005mm full catalogue length for size 12, so no spliced joint is involved.
Quick checklist
Rail width 12mm, rail length 795mm, two standard-length carriages, preload A (none), accuracy H (high), top-mount rail fixing. Screws: M2 at 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium; M3 at 196, 127 and 98 N.cm. Ambient temperature must not exceed 80C, with transient peaks to 100C. Re-grease every 100km of travel or every 3 to 6 months, topped up through the hole at the carriage rear. Load and moment ratings are not published for LRM - we confirm the figures for this model on request.
One 795mm stainless steel rail, 12mm wide, with both standard carriages already fitted - a complete set, top-mount fixing, preload A, accuracy H. The code carries no black-chrome or rail-only option, and we stock no black chrome, spare rails or bolt-cap packs in LRM at all; those are order-in items only. Grease through the rear hole every 100km of travel or every 3 to 6 months and never mix lubricant types. The one thing the code cannot tell you is capacity: load and moment ratings are not published for LRM, so we confirm them for this model before you commit.
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.