
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X245S10CP 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.
The AirTAC LRM12L1X245S10CP is a complete miniature linear guide: a 12 mm wide stainless-steel rail, 245 mm long, carrying one long recirculating-ball carriage. The code has no trailing T, so the rail mounts from the top - the standard arrangement when you can reach the screw heads from above. The carriage arrives pre-greased and ready to run.
Preload C (medium) removes most internal play for a firmer, less forgiving feel, while accuracy P is the tighter of the two grades offered on complete sets. The recirculating balls are Japanese-made to ISO 3290 G10 - a grade for the balls alone, not a standard for the guide. A double-lip seal scrapes oil back and excludes dust, and the outer cover shields the seal strip from larger debris. Ambient temperature must stay at or below 80 C. Load and moment ratings are not published for LRM, so we confirm them for this exact model before you order - include your application in the RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12L1X245S10CP |
|---|---|
| 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 | Long carriage |
| Carriages supplied | 1 |
| Rail length | 245 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision grade |
| Preload grade | C — medium 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. |
| L | Long carriage. |
| 1X245 | 1 carriage on a 245 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| C | C — medium 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, 245 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 precision-grade carriage moving an inspection camera along a 245 mm board scan gives repeatable imaging, with the double-lip seal keeping flux dust out of the raceways.
On a bench that checks miniature turned parts, the P accuracy grade supports consistent travel along the measuring stroke, and the long carriage steadies the probe bracket.
A 12 mm rail slots into crowded breadboard layouts where a larger guide would not fit, and students can top up grease through the lubrication hole at the rear of the carriage.
Size across the range before you commit. Where the load is heavy or overhung, move to AirTAC LSH - that series lists dynamic, static and moment ratings per carriage in its catalogue, numbers LRM simply does not publish, so it is the honest way to size a real load. If the travel is short and the priority is crossed-roller rigidity, look at LGC instead. For this set, confirm the checklist: complete form, 12 mm rail, long carriage, one carriage, 245 mm length, preload C with its higher running drag, accuracy P, top-mount fixing. Then let us confirm the load rating for this exact SKU before you order.
Quick checklist
This set uses a 12 mm wide rail, 245 mm long, with one long carriage, preload C (medium), accuracy P (precision) and top-mount fixing on a 10 mm end-hole offset. Drive M2 screws to 58.8 N.cm in steel, 39.2 in cast iron, 29.4 in aluminium; M3 screws take 196, 127 and 98 N.cm respectively. Keep ambient temperature at or below 80 C with peaks no higher than 100 C, and re-grease every 100 km of travel or every 3 to 6 months. Dynamic load, static load and moment ratings are not published for LRM - we confirm them per model.
Choose LRM when the envelope is tight and the duty is light. LSH is the larger series and publishes dynamic, static and moment ratings per carriage, so size against those numbers when the load is heavy or cantilevered; LGC takes short-travel jobs that need crossed-roller rigidity. LRM wins on compactness and smoothness, and its load capacity is confirmed per model - send the RFQ and we will verify.
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.