
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X195S10BH is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriages. 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 LRM12N2X195S10BH is a complete set: one 12 mm wide stainless-steel rail, 195 mm long, carrying two standard-length ball carriages, supplied pre-assembled and pre-greased with Kyodo Yushi PS No. 2. The end fixing holes sit 10 mm in from each rail end. What separates it from the preload-free version of this same configuration is the B grade - a light preload that firms up the running feel under load at the cost of slightly more drag.
Two carriages on one rail give the assembly a longer effective base against tipping along the travel direction, one reason this layout suits small vertical slides. Inside each carriage run Japanese-made balls graded ISO 3290 G10, held by a retention design that stops them spilling during handling, behind a double-lip seal and an outer cover that shields the seal strip and screw heads. Ambient temperature must stay at or below 80 C, peaking no higher than 100 C. Note the re-greasing clock too: at a 200 mm stroke cycling once a second, the 100 km re-grease interval passes in roughly three weeks of continuous running, so the distance binds before the calendar does. Load and moment ratings are confirmed per model; include your application in the RFQ and we will confirm the figures.
| Model | Airtac LRM Miniature Linear Guide LRM12N2X195S10BH |
|---|---|
| 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 | 2 |
| Rail length | 195 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high grade |
| Preload grade | B — light 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. |
| 2X195 | 2 carriages on a 195 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| B | B — light 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, 195 mm |
| Carriage | Yes, 2 |
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.
Raising and lowering a small fluid-dispensing head over PCBs; the light preload tightens vertical feel while the two-block base resists rocking as the head rises.
A slide that carries spring-loaded test pins onto a populated board, where repeatable, lightly stiff motion keeps contact pressure consistent.
Trimming the position of a lens or sensor along a 195 mm axis during calibration, where the preloaded feel removes looseness from the adjustment.
LRM publishes no load or moment ratings, so a substantial or cantilevered load is better served by AirTAC LSH, whose per-carriage dynamic, static and moment figures are published and can be checked against your calculations. For short travel where crossed-roller rigidity matters more than stroke, look at LGC instead. Before ordering, verify every segment of this code: complete set, 12 mm rail width, standard carriage length, two blocks on a 195 mm rail, light preload B (stiffer than A, slightly draggier and less tolerant of misalignment), accuracy H and top-mount rail fixing. Send us the application details and we will confirm the load rating for this exact configuration.
Quick checklist
A 12 mm rail width, a 195 mm rail length, two standard carriages, light preload B, accuracy grade H, top-mount fixing and a 10 mm end-hole offset. Fixing torques: M2 screws take 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 under 80 C (transient peaks to 100 C) and re-grease every 100 km of travel or every 3 to 6 months. LRM load and moment ratings are not published; we confirm them per model when you enquire.
The complete set only: one 195 mm stainless-steel rail with two standard carriages mounted on it, pre-greased and ready to fix from above. Mounting screws, a second rail and lubricant are not part of the set. No load figure is published for LRM either - we confirm the rating for your exact model when you send the RFQ.
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.