
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X195S10CPT 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 LRM12L2X195S10CPT is a complete miniature linear guide assembly: one 12 mm wide stainless-steel rail, 195 mm long, with two long-body (L) recirculating-ball carriages riding it. The trailing T in the code sets bottom-mount rail fixing, so the clamping screws are reached from underneath rather than along the top face, and the 10 mm figure places the end mounting holes 10 mm in from each rail end. What arrives is the matched set, rail and carriages together, pre-filled with grease.
The C here is medium preload: internal clearance is taken up so the carriages sit firmer against the raceways, which suits an instrument that must not wobble, at the cost of a mounting surface that genuinely has to be flat and clean. Accuracy grade is P, precision. The balls inside each carriage are Japanese-made to ISO 3290 G10 for roundness and wear - a grade on the balls only, not on the guide assembly. A double-lip seal scrapes oil and excludes dust, and an outer cover shields the seal strip from larger debris. Ambient temperature must stay at or below 80 C, with brief peaks no higher than 100 C, worth checking next to a laser diode housing or a warm enclosure wall. Load and moment figures are not published for this series; we confirm the rating for your exact model before ordering - send the RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12L2X195S10CPT |
|---|---|
| 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 (spliced sections) |
| 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. |
| 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. |
| P | P — precision 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.
Carries slides beneath a compact confocal head where wobble would blur the image; the bottom-mount fixing keeps the top face clear for sample clips and the medium preload takes out play in the slow scanning moves.
Positions a small marking head over targets on a benchtop line; the 80 C ambient ceiling and 100 C transient peak need checking against heat radiating from the laser housing.
Two long carriages under a syringe-pump bridge lengthen the bearing span, which helps the assembly resist the tipping moment when the head stops at the end of a dispense move.
If the applied load is substantial or cantilevered, step up to AirTAC LSH instead: that series publishes per-carriage dynamic, static and moment ratings you can actually size against, which LRM deliberately does not, and its larger body carries the heavier duty. Where the travel is short and the priority is crossed-roller rigidity rather than long stroke, LGC is the cross-over choice. Before committing to this SKU, tick off: complete set (not a carriage), 12 mm rail width, long carriage, two carriages, 195 mm rail, preload C with its stiffer-but-less-forgiving installation character, P accuracy, bottom-mount direction - and confirm the load rating with us for the specific model.
Quick checklist
Rail width 12 mm, rail length 195 mm, two long-body carriages, medium preload (C), precision accuracy (P), bottom-mount rail fixing, end holes offset 10 mm. Catalogue screw torques for this rail family run from 29.4 to 196 N.cm depending on M2 or M3 screw and whether the base is steel, cast iron or aluminium. Grease the carriages every 100 km of travel or every 3 to 6 months; the first charge across the series ranges from 0.02 to 1.0 cm3 per model. Ambient limit is 80 C with 100 C peaks. Load and moment ratings are not published for LRM - we confirm the figure for this exact model from the datasheet or by enquiry before you order.
Choose LRM when the envelope is tight and the duty is light precision positioning - this set gives you a 12 mm rail, long carriages and precision grade in a small footprint. Choose LSH when the load is real weight or a cantilever: LSH publishes dynamic, static and moment ratings per carriage that you can put into a sizing calculation, while LRM has no published ratings and must be confirmed model by model. If in doubt, send us the load, moment and stroke and we will steer you to the right series.
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.