
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X70S10CP 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.
LRM12L1X70S10CP is the precision-grade version of this compact set: a 12 mm wide stainless-steel rail, 70 mm long, 10 mm end-hole offset, with one long recirculating-ball carriage bolted down from above (top-mount, no trailing T). Accuracy code P denotes the precision grade, one step tighter than the high grade H of the same configuration.
Combined with medium preload C, the P grade suits work where repeatability of the travel path matters more than free running - expect slightly higher drag than an unloaded carriage, and mount the rail on a ground or finish-milled surface to earn the grade. The balls inside are Japanese-made ISO 3290 G10 (a ball grade only, not a standard for the assembly), retained by the ball-retention design behind a double-lip seal and outer cover. The 12 mm rail width is the heart of the LRM range, so this size is the one most readily sourced within the series. Ambient temperature must stay at or below 80 C, peaks 100 C. Load and moment ratings are not published for LRM; send the RFQ and we confirm the values for this model.
| Model | Airtac LRM Miniature Linear Guide LRM12L1X70S10CP |
|---|---|
| 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 | 70 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. |
| 1X70 | 1 carriage on a 70 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, 70 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 small comparator stand sliding a dial-indicator bracket across machined parts, where precision P accuracy supports consistent reading position.
Indexing a test probe between contact points on populated boards in short, repeatable steps inside a compact benchtop fixture.
A desktop assembly cell feeding small components into a fixture, using short rail sections where space is tighter than the load is heavy.
Choose this code when measurement-like repeatability is the goal: precision P accuracy, medium preload C, one long carriage on a 70 mm, 12 mm wide, top-mount rail. If the application grows into a heavier or cantilevered load, LRM offers no rating table to calculate against - move to LSH, whose per-carriage dynamic, static and moment figures are published. For short travels needing crossed-roller stiffness, compare LGC. Before ordering, tick off: form (complete set), rail width, carriage length, block count, rail length, preload and its drag trade-off, accuracy grade, mounting direction - and confirm the load rating with us for the exact model.
Quick checklist
12 mm rail width, 70 mm rail length, 10 mm end-hole offset, one long carriage, preload C (medium), accuracy P (precision), top-mount fixing. Screw torque is 58.8 N.cm for M2 and 196 N.cm for M3 into steel, 39.2/127 N.cm into cast iron and 29.4/98 N.cm into aluminium. Ambient temperature must not exceed 80 C (transient peaks 100 C); re-grease every 100 km of travel or every 3-6 months. Load and moment ratings are not published for LRM - we confirm them per model before ordering.
Only the accuracy grade: P is the precision grade, a tighter tolerance class than the high grade H of the same 12 mm, 70 mm, long-carriage configuration - carriage, rail width and preload C are identical in this pair. P earns its keep on measuring and process fixtures; H is the pragmatic choice elsewhere. Either way the load rating is not published for LRM, so confirm the figure with us for the specific model.
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.