
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X695S10AH 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.
LRM12N2X695S10AH is the ordering code for a ready-to-mount miniature guide: a 695 mm stainless steel rail, 12 mm wide, with two standard-length carriages already seated on it and fixing holes 10 mm from each end. Accuracy grade H, preload grade A and top-mount fixing are all written into the code, so what arrives matches what the machine layout assumed.
The ball-retention design is a handling feature rather than a guarantee: AirTAC cautions that tilting a carriage onto the rail, or pulling it off quickly, can still spill balls, so anyone repositioning carriages during setup should keep them on the rail or use a dummy rail to fit them. The balls are Japanese ISO 3290 G10 - a grade for the balls themselves, not for the guide assembly. With two carriages on one rail, put the datum shoulder on the same side of both to improve running accuracy. Double-lip seals and an outer cover protect the raceways; keep the ambient at or below 80 C, peaking no higher than 100 C. LRM has no published load or moment ratings, so we will confirm the numbers for this 695 mm set when you RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12N2X695S10AH |
|---|---|
| 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 | 695 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. |
| 2X695 | 2 carriages on a 695 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, 695 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.
A 695 mm twin-carriage rail carries the lens head of a small laser engraver, the dual blocks resisting nod as the head traverses the bed.
Instrument makers use long, slim miniature rails like this for the traveling carriage of a benchtop comparator or height-check fixture.
Guiding a small crimping or wire-cut head along a 695 mm bed is smooth, light service that suits a 12 mm rail with two standard blocks.
If a carriage ever needs replacing in the field, remember LRM12 is a common-rail family - carriages share one rail profile - but a replacement block must be ordered as a carriage-only code with its pairing letter, and our carriage-only stock is just a handful of SKUs, so plan ahead. For sizing: heavy or cantilevered loads belong on LSH, whose per-carriage dynamic, static and moment ratings are published and can be checked against your layout; short-travel work needing crossed-roller rigidity belongs on LGC. Match before you buy: complete set form, 12 mm rail width, standard carriage, two blocks, 695 mm rail, preload A, H accuracy, top-mount. And confirm the load rating with us first - LRM lists none.
Quick checklist
You can hold us to these: a 12 mm wide, 695 mm long stainless rail, two standard-length carriages, top-mount holes offset 10 mm from the ends, preload A (none) and accuracy grade H. Fit with M3 screws at 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminium. Keep ambient temperature at or below 80 C with peaks to 100 C, and re-grease the Kyodo Yushi PS No. 2 charge every 100 km of travel or every 3 to 6 months. Load, moment and running-parallelism figures are deliberately absent from the LRM catalogue - we confirm them per model through the RFQ.
No - a set is the whole axis: rail, both carriages, seals and factory grease. What you add is the mounting face, which should be ground or finish-milled for the rated travel accuracy, plus the M3 screws. Two setup cautions from the maker: do not strike or drop the rail, since accuracy can suffer with no visible damage, and hold the carriages when working on an incline, because an unattended carriage can slide off under its own weight.
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.