
The AirTAC Airtac LRM Miniature Linear Guide LRM15L1X148S14AH 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.
LRM15L1X148S14AH is a complete miniature linear guide set from AirTAC: one 15 mm wide stainless-steel rail, cut to 148 mm, carrying a single long (L) recirculating-ball carriage. The code confirms preload A (none) and accuracy grade H, with the rail holes drilled for top-mount fixing at a 14 mm end offset. Rail and carriage ship fitted together, so everything needed to bolt down a light-duty precision axis arrives in one box.
Because the carriage is the long type, it spans a greater number of recirculating balls and a longer bearing base, which helps where a small head or sensor might otherwise tip. The balls themselves are Japanese-made to ISO 3290 G10 for roundness; a double-lip seal scrapes oil and excludes dust, and an outer cover shields the seal strip and screw heads. LRM carriages share one common rail profile, and the ball-retention design keeps balls in place during handling, though a careful, square insertion is still advised. Ambient temperature must stay at or below 80 C, with peaks no higher than 100 C. Load and moment ratings are not published for this series; we confirm the figures for your exact model before ordering, so send the RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM15L1X148S14AH |
|---|---|
| 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 | 148 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. |
| 1X148 | 1 carriage on a 148 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, 148 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 benchtop camera stage scanning solder joints on small circuit boards needs smooth, repeatable short travel in a tight frame - a single long carriage on a 148 mm rail gives the bearing span without widening the footprint.
A compact microplate dosing station can carry its dispense head on this light-duty set; the long carriage steadies the head over the plate row, and the pre-filled grease keeps maintenance to a 100 km or 3-6 month cycle.
Small electronics assembly cells shifting connectors and shields by vacuum benefit from the low-friction, play-free travel of a preload-A long carriage under a lightweight end effector.
If the axis sees substantial or cantilevered load, step up to the larger AirTAC LSH series, which publishes per-carriage dynamic, static and moment ratings you can size against - LRM deliberately does not. For short travel where crossed-roller rigidity matters, look across at LGC instead. Before ordering LRM15L1X148S14AH, tick through the list: complete set form, 15 mm rail width, long carriage, one carriage, 148 mm rail length, preload A for the lowest running resistance, accuracy H, top-mount rail - and confirm the load rating with us. Two buying notes: size 12 dominates our stock, so this 15 mm item is typically ordered in; and across the stocked range, rail length rather than width drives most of the price spread.
Quick checklist
This set has a 15 mm rail width, 148 mm rail length, one long carriage, preload A (none), accuracy grade H and top-mount rail fixing with a 14 mm end-hole offset. Tighten M2 screws to 58.8 N.cm in steel, 39.2 in cast iron, 29.4 in aluminium; M3 to 196, 127 and 98 N.cm respectively. Ambient temperature must not exceed 80 C, with transient peaks to 100 C, and re-greasing falls due every 100 km of travel or every 3-6 months. Load and moment ratings are not published for LRM - we confirm them per model, so ask us before committing.
The box contains the stainless-steel rail and the fitted long carriage - it is a complete set, not a separate carriage or rail. Carriage-only replacements use a BK code ending in a pairing letter that must match the rail; our carriage-only stock is limited to a handful of SKUs, so most carriage swaps are special orders, best fitted square and slowly, ideally on a dummy rail, because even the ball-retention design can drop balls on a hasty swap. LRM5, LRM7 and LRM9 items are available to order rather than stocked.
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.