
The AirTAC Airtac LRM Miniature Linear Guide LRM15L1X130S25AH is a miniature linear guide on a 15 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.
LRM15L1X130S25AH ships as a complete set: a 15 mm wide stainless-steel rail cut to 130 mm, with one long carriage running on it. The 25 mm end-hole offset positions the first mounting holes in from each rail end. Preload grade A means the carriage runs freely, which favors smoothness and easy motion over rigidity, and accuracy grade H suits precision positioning that does not need the P grade.
Because the carriage body is the long version, its ball circulation spans a longer footprint, which helps when the moving part wants to pitch or yaw slightly. The balls themselves are Japanese-made to ISO 3290 grade G10 for roundness, the double-lip seal scrapes oil back and keeps dust out, and the outer cover protects the seal strip from larger debris. Keep the installation under 80 C ambient - a real ceiling next to soldering stations or curing lamps. The manufacturer publishes no load or moment ratings for LRM, so we confirm the numbers for this exact SKU through the RFQ before you commit.
| Model | Airtac LRM Miniature Linear Guide LRM15L1X130S25AH |
|---|---|
| Series | LRM Series Miniature Linear Guide |
| Supplied as | Complete guide set |
| Construction | Recirculating ball, stainless-steel rail, common-rail design |
| Size code | LRM15 |
| Rail width | 15 mm |
| Carriage length | Long carriage |
| Carriages supplied | 1 |
| Rail length | 130 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. |
|---|---|
| 15 | Size code. |
| L | Long carriage. |
| 1X130 | 1 carriage on a 130 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, 130 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.
Inspection benches use short rails like this to carry a dial or digital indicator across a machined face; grade H accuracy keeps the reading repeatability honest over the 130 mm run.
Inside a small laser marker, a shutter or attenuator optic slides on a 15 mm rail; the 80 C ambient ceiling is the figure to check against the beam-path temperature.
A compact vision sorting bench can carry its camera on this single long carriage, giving a steady 130 mm traverse for frame-to-frame part inspection.
When the moved mass is heavy or hangs off a cantilever, choose LSH instead: it lists dynamic, static and moment ratings per carriage, the very numbers LRM withholds, so sizing becomes a calculation rather than a question to us. Where the stroke is short and the frame must resist flex, LGC crossed-roller guides give the higher rigidity. Before you commit to this SKU, run through the form (complete set), rail width (15 mm), carriage length (long), count (one), rail length (130 mm), preload (A, unpreloaded and free-moving, trading rigidity for smoothness), accuracy (H), mounting direction (top-mount) and any replacement pairing code - then confirm the load rating with us. Availability note: size 15 is stocked, though in smaller numbers than size 12 - 63 sets against 924 - so an LRM12 layout ships fastest while this 15 mm set remains a stock item.
Quick checklist
The stated ones: a 15 mm rail width, a 130 mm rail length, one long carriage, no preload (grade A), high accuracy (grade H) and top-mount rail mounting. Installation torque runs from 58.8 N.cm (M2 into steel) to 196 N.cm (M3 into steel), with lower values for cast iron and aluminium. The ambient limit is 80 C, briefly 100 C, and lubrication is topped up every 100 km of travel or every 3 to 6 months. What is not published - deliberately, by the manufacturer - is any dynamic, static or moment load rating for LRM; we confirm those figures model by model through the RFQ.
Choose LRM when the envelope is tight and the duty is light, as with this 15 mm, 130 mm set: it is built for compact, smooth precision positioning. Choose LSH when the load is heavier or cantilevered, because LSH publishes dynamic, static and moment ratings per carriage and LRM does not, so only LSH lets you size by calculation. If the stroke is short and stiffness is the priority, look at LGC crossed-roller guides. For this SKU, send the RFQ and we confirm the LRM load figures for your exact case.
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.