
The AirTAC Airtac LRM Miniature Linear Guide LRM15L1X220S10AH 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.
One 220 mm length of 15 mm wide stainless-steel rail, one long (L) carriage riding it, a 10 mm end-hole offset (S10) and top-mount fixing - that is the LRM15L1X220S10AH, delivered as an assembled, greased set ready to install.
Ball retention is a handling aid, not a promise: the manufacturer warns that inserting the carriage at an angle or swapping it hastily can still drop balls, so plan on a dummy rail if carriages will be changed in service. Inside, recirculating balls made to ISO 3290 G10 - the grade covers the balls only - run behind a double-lip seal and under an outer cover that hides the fixings and shields the seal strip. The common-rail profile lets other LRM15 carriages share this same rail. Ambient temperature must not exceed 80 C, with transient peaks to 100 C. Because stocked LRM pricing spans roughly $66 to $831 on just two rail widths, that spread comes almost entirely from rail length and carriage count - trimming travel is usually cheaper than changing size. Load and moment ratings are not published for LRM; ask us and we will confirm them for this model.
| Model | Airtac LRM Miniature Linear Guide LRM15L1X220S10AH |
|---|---|
| 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 | 220 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. |
| 1X220 | 1 carriage on a 220 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, 220 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.
Positioning a probe card or socket fixture in a compact semiconductor test rig, where the 220 mm rail delivers stroke without bulk.
A focus or alignment carriage in a small laser marking head, mounted clear of the source so ambient stays under the 80 C limit.
A measurement jig on an R&D bench, where the long carriage supports an indicator sweeping across a test part.
LRM suits light, precise positioning in a small footprint; the long carriage on this set adds bearing span against tipping moments. Where loads become substantial or overhung, LSH is the sizing tool - its catalogue lists dynamic, static and moment ratings per carriage, numbers LRM simply does not publish. For short strokes needing crossed-roller stiffness, look at LGC instead. Because price tracks rail length far more than rail width here, trimming a few millimetres of travel before locking the layout protects the budget. Run the checklist before ordering: complete set, 15 mm rail, long block, one piece, 220 mm length, preload A (none), accuracy H, top-mount direction, no pairing code required (this is a set), and a per-model load rating confirmed with us.
Quick checklist
Rail width 15 mm; rail length 220 mm; one long carriage; preload A (none); accuracy H (high); top-mount fixing with a 10 mm end-hole offset. Screw torque: M2 screws - 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium; M3 screws - 196 N.cm into steel, 127 into cast iron, 98 into aluminium. Ambient temperature must stay at or below 80 C, peaks to 100 C. 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 per model before ordering.
LRM is the light-duty, small-envelope choice, and this 15 mm set fits that role. LSH is the step up when the load is substantial or cantilevered: it publishes basic dynamic, static and moment ratings per carriage, plus running-parallelism tolerances, none of which LRM states. If short travel and crossed-roller rigidity matter more than stroke, LGC is the alternative. Either way, send us the load case and we will confirm whether the LRM carriage is adequate before you 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.