
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X132S16AH is a miniature linear guide on a 12 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.
LRM12N1X132S16AH is a complete miniature guide set: a 132 mm long, 12 mm wide stainless-steel rail with a single standard-length recirculating-ball carriage running on it. The code sets a 16 mm end-hole offset, top-mount fixing, high accuracy grade H and - the defining choice here - preload grade A, meaning no built-in preload at all. You receive the assembled rail-and-carriage pair; nothing else is needed to create a running axis. Load and moment ratings are not published by AirTAC for LRM, so request them from us and we confirm the figures for this model before you order.
With preload A the carriage glides with the least resistance the series offers, which suits axes moved by hand, by belt or by a small actuator where every bit of drag counts. The common-rail design adds future-proofing: standard (N) and long (L) carriages share the same rail profile, so you can later move to a long carriage without redrawing the rail. The balls are made to ISO 3290 grade G10 - that grade covers the balls only, not the assembled guide - held by a retainer and sealed by a double lip under an outer cover that conceals the screws. Ambient temperature must stay at or below 80 C, peaking no higher than 100 C. LRM12 is by far the most widely listed size in this series, so length variants around 132 mm are the easiest configurations to source.
| Model | Airtac LRM Miniature Linear Guide LRM12N1X132S16AH |
|---|---|
| Series | LRM Series Miniature Linear Guide |
| Supplied as | Complete guide set |
| Construction | Recirculating ball, stainless-steel rail, common-rail design |
| Size code | LRM12 |
| Rail width | 12 mm |
| Carriage length | Standard carriage |
| Carriages supplied | 1 |
| Rail length | 132 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. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X132 | 1 carriage on a 132 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, 132 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.
Indexes small vials beneath a capping head on a compact line; the unpreloaded carriage keeps running friction low so a small electric drive does the work easily.
Positions a wire guide eyelet in small increments on a coil-winding machine; smooth A-grade travel makes sub-millimetre corrections feel consistent.
For early lab-instrument builds where the rail may later carry a long carriage - the common-rail profile allows that swap without redrawing the rail.
Because this carriage is preloaded at grade A, treat it as the low-drag option: if your process would expose play at reversals, ask us about the B or C preload twins of the same length instead. If the load is substantial or cantilevered, step up to LSH, whose published per-carriage dynamic, static and moment ratings let you verify capacity - something the LRM catalogue does not offer. If travel is short and stiffness matters most, LGC's crossed-roller guides are the better cross-check. Checklist: complete set; 12 mm rail width; standard carriage; one carriage; 132 mm rail; 16 mm end offset; preload A; accuracy H; top mounting; pairing code not applicable; and confirm the load and moment ratings with us for this exact model.
Quick checklist
A 12 mm wide, 132 mm long stainless rail, one standard-length carriage, preload A (none), accuracy H (high), top-mount holes and a 16 mm end-hole offset. Screw torque: M2 - 58.8 N.cm steel, 39.2 cast iron, 29.4 aluminium; M3 - 196, 127 and 98 N.cm. Ambient limit 80 C, transient peaks 100 C. Grease 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.
The set arrives as rail plus carriage, assembled and pre-greased with Kyodo Yushi PS No. 2 - it is a complete guide, not a carriage-only code, and there is no pairing letter to match. Before first use, wipe off the rust-preventive oil and apply lubricant. A spare carriage would carry its own BK ordering code with a pairing letter that must match the rail, and only a few carriage-only codes are listed, so most spares are special orders.
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.