
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X195S10CH 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 AirTAC LRM12L2X195S10CH is a complete miniature linear guide set: one 195 mm stainless-steel rail, 12 mm wide, carrying two long (L) recirculating-ball carriages already fitted and pre-greased. The S10 segment fixes the end-hole offset at 10 mm, so the mounting screws sit 10 mm in from each rail end, and the absence of a trailing T means the rail fixes from the top.
Preload C is the firmest grade LRM offers: it removes play for repeatable positioning, at the cost of slightly higher running drag and a mounting surface that must be ground or finish-milled to hold its rated travel accuracy. Japanese-made ISO 3290 G10 balls recirculate inside the carriages, a double-lip seal scrapes oil and excludes dust, and the outer cover hides the screw heads while shielding the seal strip from larger debris. Ambient temperature must stay at or below 80 C, with transient peaks to 100 C. LRM publishes no load or moment ratings, so we confirm the figures for this exact code when you send the RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12L2X195S10CH |
|---|---|
| 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 | 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 | 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. |
| 2X195 | 2 carriages on a 195 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. |
| 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.
Two long carriages under each axis of a desktop vision-inspection table give a wider bearing span against tipping as the camera head shuttles across PCB panels.
The traverse axis of a small desktop placer moving between 0402 component reels and the board nest; medium preload keeps head positioning repeatable run after run.
A laboratory laser-alignment carriage carrying a mirror mount along 195 mm of travel, where the high accuracy grade and smooth ball recirculation hold the beam path steady.
If the load is substantial or cantilevered, step up to AirTAC LSH, which publishes per-carriage dynamic, static and moment ratings you can put straight into a calculation - LRM gives you no table to size against. When travel is short and crossed-roller rigidity matters more than ball smoothness, LGC is the cross-over choice. Checklist for this code: complete set, 12 mm rail width, long carriage, two blocks, 195 mm rail, preload C (rigid, but less forgiving of imperfect faces), accuracy H, top-mount fixing. Long carriages are stocked as deeply as standard here - 512 against 475 SKUs - so specifying the L carriage costs nothing in availability. And the 100 km re-grease mark arrives sooner than it sounds: a 200 mm stroke cycling once per second reaches it in roughly three weeks of continuous running, so distance, not the calendar, usually triggers the service. Send the RFQ with your load and moment cases and we confirm the rating before you commit.
Quick checklist
It is a complete set: a 12 mm wide stainless-steel rail, 195 mm long, with two long carriages, medium (C) preload, high (H) accuracy, top-mount fixing and a 10 mm end-hole offset. Torque M2 screws to 58.8 N.cm into steel, 39.2 N.cm into cast iron or 29.4 N.cm into aluminium; M3 screws take 196, 127 and 98 N.cm respectively. Ambient temperature must not exceed 80 C with peaks to 100 C, and re-greasing is due every 100 km of travel or every 3 to 6 months. Dynamic, static and moment load ratings are not published for LRM - we confirm them for this exact model via the RFQ.
Choose LRM when the envelope is tiny and the duty is light-precision positioning, which is exactly what this 12 mm, 195 mm two-carriage set is built for. Choose LSH when the load or moment is significant or cantilevered: LSH publishes dynamic, static and moment ratings per carriage so you can calculate margin, while LRM publishes none and we confirm ratings per model. For short travel needing crossed-roller rigidity, LGC is the third option. Send us the load cases and we will recommend the right family and confirm the figure.
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.