
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X195S10CHT 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.
LRM12N2X195S10CHT is the bottom-mount version of the medium-preload twin-carriage 12 mm set: a 195 mm stainless-steel rail bolted through its base, two standard carriages on board, preload C and accuracy H. Choose it when the carriage top must present a flush, unobstructed deck to whatever it carries.
LRM12 is by far the deepest-stocked size in this range - roughly nine in ten of our stocked LRM sets - so this configuration typically ships without a wait. The 80 C ambient ceiling (100 C momentary) is worth checking early if the guide runs near a heater, lamp or curing oven; it is the one environmental figure the catalogue publishes. Recirculating balls are graded ISO 3290 G10, a grade that applies to the balls alone, not the assembly. Ball retention helps during handling, but a carriage fitted at an angle or swapped quickly can still lose balls - a dummy rail makes field changes safer. Because LRM carries no published load or moment ratings, we confirm capacity for this exact SKU before ordering; include it in your RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12N2X195S10CHT |
|---|---|
| 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 (spliced sections) |
| 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. |
| N | Standard 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.
A small inspection camera riding beside a mini conveyor, bottom-mounted so the lens side of the deck stays clear of passing product.
Advancing wire harnesses under a benchtop crimper, with the twin-carriage layout resisting tipping along the 195 mm travel.
Upgrading a compact printer axis to recirculating-ball travel; wipe off the rust-preventive oil and apply fresh lubricant before first use.
Sizing guidance: when the load is substantial or sits on an overhang, move to LSH - its published per-carriage dynamic, static and moment ratings let you calculate margins, something LRM cannot offer. LGC fits short, stiff, crossed-roller duties. For this SKU, confirm each point: complete set with rail, 12 mm rail width, standard block length, two carriages on a 195 mm rail, preload C (the rigid choice - make sure the ground or finish-milled seat can hold its tolerance), accuracy H, bottom-mount direction, and a load rating confirmed with us, since none is published for LRM. On long runs the rail can be spliced; spliced sets are accuracy H only and the joint marks and serial pairs must be matched during assembly.
Quick checklist
Yes: 12 mm rail width, 195 mm rail length, two standard carriages, preload C (medium), accuracy H (high), bottom-mount fixing, stainless-steel rail, ISO 3290 G10 balls. Screws: M2 torque 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium; M3 at 196, 127 and 98 N.cm. Ambient must stay under 80 C, peaks to 100 C. Re-grease every 100 km of travel or every 3 to 6 months. What the catalogue does not publish for LRM: load ratings, moment ratings, running parallelism and speed limits - we confirm those per model before you order.
A complete set: one 195 mm bottom-mount stainless-steel rail with both standard carriages fitted and pre-greased with Kyodo Yushi PS No. 2. Carriages are not sold loose with this SKU. If you want a spare carriage later, that is a separate carriage-only part carrying a pairing code that must match its rail - and our carriage-only stock is very thin, so most replacements are a special order. When handling spares, remember balls can still drop if the carriage is tilted onto the rail or swapped hastily; a dummy rail helps.
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.