
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X395S10APT 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.
Order LRM12L1X395S10APT and you receive one 395 mm stainless-steel rail, 12 mm rail width, with a single long carriage fitted, in precision accuracy grade P and bottom-mount fixing. Nothing else is needed to build a working axis: the set ships assembled, pre-greased and ready to bolt down from beneath the rail.
Across the stocked LRM12 range, price tracks rail length far more than rail width - the stocked span runs from about $66 to $831 over just two widths - so a 395 mm cut like this sits well above the shortest sets yet well below the 1005 mm full-length size 12 rail, and trimming travel is the cheapest way to trim budget. The carriage keeps its balls captive for safer handling (the ISO 3290 G10 grade statement applies to the balls only), and a double-lip seal plus outer cover guard the raceway from oil loss and debris. Ambient must stay under 80 C, peaking at 100 C. Ratings for load and moment are not published for LRM; we confirm them per model - put the details on the RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12L1X395S10APT |
|---|---|
| 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 | 1 |
| Rail length | 395 mm (spliced sections) |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision 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. |
| L | Long carriage. |
| 1X395 | 1 carriage on a 395 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. |
| P | P — precision grade. |
| This order | Complete guide set |
|---|---|
| Rail | Yes, 395 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 shop-floor optical comparator sweeps machined pins past the lens on this 12 mm axis; bottom-mount fixing lets the builder recess the rail flush into the stage plate.
Inside a small component feeder, the outer cover and double-lip seal keep fibres and dust out of the raceway while the carriage indexes parts to a pick point.
A custom inspection microscope uses this precision-grade rail as its X axis, the 395 mm stroke covering a full wafer holder plus overshoot at each end.
LRM carries no published load table, so if the duty involves real force or a cantilever, move to LSH, whose catalogue prints per-carriage dynamic, static and moment ratings. Where travel is short and you need crossed-roller rigidity, LGC is the sibling series to compare. Checklist for this SKU: complete set, 12 mm stainless rail, long carriage x1, 395 mm rail length, preload A, accuracy P, bottom-mount. Accuracy P tightens travel straightness but asks more of the mating surface - grind or finish-mill it, and use the same datum side for any second carriage. Send the load details on the RFQ and we confirm the rating for this exact configuration.
Quick checklist
12 mm wide stainless rail, 395 mm long, one long carriage, accuracy P (precision), preload A (none), bottom-mount mounting. Assembly torque: M3 screws 196 N.cm (steel), 127 N.cm (cast iron), 98 N.cm (aluminium); M2 screws 58.8, 39.2 and 29.4 N.cm in the same order. Ambient limit 80 C, transient peaks 100 C. Lubrication: shipped with Kyodo Yushi PS No. 2, top up every 100 km or every 3 to 6 months. Load and moment ratings are not published for LRM - we confirm them per model before ordering.
Yes, but plan ahead. Carriage-only LRM codes carry a pairing letter (A to E) that must match the rail; our in-stock carriage-only SKUs are just four, all pairing code C, so most replacements are a special order. Because balls can still drop if the carriage is tilted onto the rail or swapped hastily despite the ball-retainer, keep a dummy rail for the swap and quote the code from your original rail when ordering.
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.