
The AirTAC Airtac LRM Miniature Linear Guide LRM15L1X140S15AH 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.
LRM15L1X140S15AH is a complete AirTAC LRM miniature linear guide set: a 15 mm wide stainless-steel rail cut to 140 mm, carrying one long (L) recirculating-ball carriage. The 15 mm size is the widest rail width held anywhere in this range, and 140 mm sits at the compact end of the stocked length span, so this set suits builds where a small footprint matters more than a long stroke. The box contains the drilled rail and the carriage already fitted to it, pre-greased, with end fixing holes set 15 mm in from each rail end for top-mount installation.
The carriage rolls on ISO 3290 G10 balls (that grade applies to the balls themselves, not to the assembled guide), retained by a ball-retention feature so they stay put during handling. A double-lip seal scrapes lubricant back and keeps dust out, and an outer cover shields the seal strip while hiding the screw line. Because LRM is a common-rail design, any LRM15 carriage shares this same rail profile, which keeps future carriage replacement simple. AirTAC publishes no load or moment figures for LRM; we confirm the ratings for your exact model before you commit - send us the RFQ. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C.
| Model | Airtac LRM Miniature Linear Guide LRM15L1X140S15AH |
|---|---|
| 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.
| 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. |
| 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.
A compact pick-and-place head shuttling 0402 chip components between feeder and nozzle station rides on one long carriage over a 140 mm rail; the light moving mass suits an unloaded miniature guide.
A clinical analyser moves microplates a short distance between wash and read positions; a single long carriage on a 140 mm rail gives the plate a stable, smooth platform over that stroke.
A benchtop camera stage sliding connector pins under a fixed lens benefits from the long carriage, which resists pitch and keeps the part in focus along the travel.
Check length before you grow the size: across LRM, the price spread is driven mainly by rail length and carriage count rather than rail width, and a 140 mm rail sits near the short, economical end of the range. Step up to LSH when the load is substantial or cantilevered, because LSH publishes per-carriage dynamic, static and moment ratings you can size against - something LRM does not offer. Step across to LGC when the travel is short and the application needs crossed-roller rigidity. Match checklist: form (this is a complete set), 15 mm rail width, long carriage, one carriage per rail, 140 mm rail length, preload A (free-sliding and easiest to install, but the least rigid grade on LRM), accuracy H, top-mount mounting, and a load-rating confirmation with us before you finalise the design.
Quick checklist
Rail width 15 mm (stainless steel), rail length 140 mm, one long carriage, preload A (none), accuracy grade H (high), top-mount rail with end holes 15 mm in from each end. Fastening: M2 screws torque to 58.8 N.cm into steel (39.2 cast iron, 29.4 aluminium); M3 screws to 196 N.cm into steel (127 cast iron, 98 aluminium). Ambient limit is 80 C with peaks to 100 C. Carriages ship pre-filled with Kyodo Yushi PS No. 2; re-grease every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM - we confirm them for this exact model via the RFQ.
One piece. The two-section spliced format in the LRM catalogue exists for very long runs and is accuracy H only; at 140 mm this rail is supplied as a single length. The set contains just the rail and its fitted carriage - there is no second carriage, no rail-only spare and no mounting screws beyond what your baseplate design calls for. If you later need a replacement carriage on its own, note that carriage-only LRM SKUs are scarce and normally become a special order.
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.