
The AirTAC Airtac LRM Miniature Linear Guide LRM15L1X110S15BPT 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.
LRM15L1X110S15BPT is a complete miniature linear guide set whose trailing T changes one thing: the rail mounts from below. The 15 mm wide, 110 mm long stainless-steel rail arrives with a single long (L) carriage fitted, ordered here with light preload (B) and precision accuracy (P). If your machine deck has no access from above - a closed base plate, a cosmetic cover, a working surface that must stay unbroken - the underside fixings let you bolt the guide down without touching the top face.
Inside, the recirculating balls are grade G10 to ISO 3290 and Japanese made; a double-lip seal scrapes oil back and excludes dust, and an outer cover protects the seal strip while hiding the fixing screws. The ball retainer keeps the balls captive during handling, but the manufacturer is clear that presenting the carriage at an angle or swapping it hastily can still drop balls, so work deliberately or keep a dummy rail for carriage changes. Keep ambient temperature at or below 80 C, with transient peaks no higher than 100 C - worth checking if the stage sits beside a heater or a lamp housing. Because LRM publishes no load or moment ratings, we confirm the figures for this exact configuration through the RFQ before you commit.
| Model | Airtac LRM Miniature Linear Guide LRM15L1X110S15BPT |
|---|---|
| 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 | 110 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 | B — light 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. |
| 1X110 | 1 carriage on a 110 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| B | B — light 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, 110 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.
Bolting the rail from below keeps the top face of a compact camera-inspection stage completely clear for the part, the lighting and the lens.
A bottom-mount rail suits a tooling base plate whose upper surface must stay flat and unbroken for clamping workpieces in place.
Precision P travel over a 110 mm stainless rail gives a small metrology comparator the smooth, repeatable slide that its measurement cycle needs.
If the underside-fixed carriage ever has to carry a real cantilever or a heavy payload, move up to LSH: that series publishes per-carriage dynamic, static and moment ratings, so you can do the sums, whereas LRM gives you no published figures to calculate with. For very short travel where crossed-roller stiffness matters more than stroke, LGC is the cross-series alternative. Check before ordering: form is a complete set with the rail included, 15 mm rail width, long carriage, one block, 110 mm rail length, preload B (easier sliding, less rigidity than C), accuracy P, bottom-mount fixing - and confirm the load rating with us for this specific model.
Quick checklist
Rail width 15 mm; rail length 110 mm; one long carriage; rail mounting bottom-mount (trailing T); preload B (light); accuracy P (precision). Screw torques: M2 at 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium; M3 at 196, 127 and 98 N.cm. The ambient limit is 80 C, with transient peaks to 100 C. Re-grease after every 100 km of travel or every 3 to 6 months, whichever comes first. Load and moment ratings are not published for LRM - we confirm them per model on request.
One complete assembled set: the 110 mm stainless rail, 15 mm wide, with the long carriage already fitted and pre-filled with Kyodo Yushi PS No. 2 grease. This is not a rail-only part and there is no second carriage; the T in the code changes only the mounting direction, so you still receive the full guide. If you later want a spare carriage, note that we stock only a handful of carriage-only SKUs, so most replacements are a special order matched to the rail by its pairing code.
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.