Airtac LRM Miniature Linear Guide LRM15L1X140S25AH
The AirTAC Airtac LRM Miniature Linear Guide LRM15L1X140S25AH 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.
- SeriesLRM
- Supplied asComplete guide set
- SizeLRM15
- Rail width15 mm
- Carriage lengthLong carriage
- Carriages1
- Rail length140 mm
- AccuracyH — high grade
- PreloadA — no preload
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac LRM Miniature Linear Guide LRM15L1X140S25AH
LRM15L1X140S25AH is a complete miniature linear guide set from the AirTAC LRM series: a 15 mm wide stainless-steel rail, cut to 140 mm, supplied with one long-series carriage already fitted. Its distinguishing figure is the S25 end-hole offset - the first mounting hole on each end lies 25 mm in from the rail end. That offset buys clearance at the rail ends for end stops, machine walls or bellows that would otherwise collide with hardware at the very tip.
The L carriage stretches the ball footprint and the bearing span along the travel, which helps a single-block design resist tipping. Inside, the recirculating balls are Japanese-made ISO 3290 G10 grade - this grades the balls alone, never the guide assembly - protected by a double-lip seal, while an outer cover keeps larger debris off the seal strip. Keep the ambient at 80 C maximum, peaks to 100 C; next to an oven door or a laser head, this is the one published environmental limit to design around. LRM has no published load or moment figures; we confirm the numbers for this exact set via the RFQ.
Airtac LRM Miniature Linear Guide LRM15L1X140S25AH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM15L1X140S25AH |
|---|---|
| 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 | 140 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.
Model Code: Airtac LRM Miniature Linear Guide LRM15L1X140S25AH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 15 | Size code. |
| L | Long carriage. |
| 1X140 | 1 carriage on a 140 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. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 140 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.
Where the Airtac LRM Miniature Linear Guide LRM15L1X140S25AH Is Used
Laser beam-steering slide
A manual alignment slide on an optical breadboard, where the 25 mm end offset clears the adjustment hardware and end-stop screws at the rail ends.
Benchtop fixture rebuilds
Retrofitting smooth linear motion into small workshop jigs and assembly fixtures, where a miniature stainless rail replaces worn sliding ways without redesigning the bed.
Electronics assembly feeders
Positioning small electronic components at an assembly station, with the long carriage spanning the part pitch for steadier single-rail guidance.
Is the Airtac LRM Miniature Linear Guide LRM15L1X140S25AH the Right Guide?
Trim travel before you trim size: across our stocked LRM sets the price spans roughly $66 to $831 on only two rail widths, so nearly all of that spread comes from rail length and carriage count, not the 15 mm gauge. If your machine sees heavy or overhung loads, move up to LSH, whose catalogue carries the per-carriage dynamic, static and moment ratings LRM lacks. If travel is short but you need crossed-roller stiffness, LGC is the cross-series alternative. Checklist for this SKU: complete set (rail included), 15 mm rail width, long carriage, one block per rail, 140 mm length, S25 end offset, preload A (smoothest running; expect clearance under alternating loads), accuracy H, top-mount rail - and confirm the load rating with us before committing.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Load and moment confirmed with us
- ✓ Travel length and mounting space
- ✓ Accuracy grade and preload
- ✓ Mounting surface ground or finish-milled
- ✓ Pairing code, if replacing a part
Installation & Maintenance Notes
- check Mounting surface must be ground or finish-milled.
- check Torque the rail screws per the recommended figures, in sequence.
- check Keep the mounting corner radius inside the stated R maximum.
- check Do not angle the carriage onto the rail; balls can drop out.
- check Drive the supplied bolt caps into the mounting holes.
- check Re-grease every 100 km of travel or every 3–6 months.
- check Installation by qualified personnel per AirTAC docs.
Airtac LRM Miniature Linear Guide LRM15L1X140S25AH FAQ
15 mm rail width, 140 mm rail length, S25 end-hole offset, one long carriage, preload A (none), accuracy H, top-mount installation. Fastener torque: 58.8 N.cm for M2 screws into steel (39.2 cast iron, 29.4 aluminium) and 196 N.cm for M3 into steel (127 cast iron, 98 aluminium). Ambient limit is 80 C with 100 C transients. Kyodo Yushi PS No. 2 grease is pre-filled; re-grease every 100 km of travel or every 3 to 6 months, whichever comes first - at a 200 mm stroke cycling once per second, 100 km passes in about three weeks of continuous running, so distance usually binds before the calendar. Load and moment ratings are not published; we confirm them per model.
You receive the full set: the 140 mm stainless rail plus the long carriage already fitted - there is no pairing code because nothing is ordered separately. The rail mounts from the top with screws through the mounting holes, and the 25 mm offset sets how far in from each end those end holes sit, so drill your bed pattern to match. Handle with care: the ball-retention design helps, but inserting the carriage at an angle or rushing a swap can still drop balls - a dummy rail is the safe way to refit a carriage. Replacement carriages alone are mostly a special order here, since our carriage-only stock is thin.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LRM Miniature Linear Guide LRM15L1X140S25AH
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.