Airtac LRM Miniature Linear Guide LRM12N1X370S10CHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X370S10CHT 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.
- SeriesLRM
- Supplied asComplete guide set
- SizeLRM12
- Rail width12 mm
- Carriage lengthStandard carriage
- Carriages1
- Rail length370 mm
- AccuracyH — high grade
- PreloadC — medium preload
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac LRM Miniature Linear Guide LRM12N1X370S10CHT
This LRM12N1X370S10CHT is a complete miniature linear guide set from AirTAC: one 370 mm stainless-steel rail, 12 mm wide, with a single standard-length recirculating-ball carriage fitted. The trailing T in the code puts the mounting holes for bottom-mount installation, so the fixing screws sit underneath the rail and stay hidden from the top face. Everything needed for one axis is in the box.
The medium preload grade C removes play by preloading the balls between the raceways, which stiffens the carriage against rocking but raises rolling resistance and demands a well-prepared mounting surface. The running balls are ISO 3290 G10 grade Japanese balls selected for roundness and wear; the double-lip seal scrapes oil back and keeps dust out, and the outer cover shields the seal strip and screw heads. Ambient temperature must stay at or below 80 C, with brief peaks no higher than 100 C. Because AirTAC publishes no dynamic or static load rating for LRM, the capacity of this exact set is confirmed per model - send the RFQ and we will return the figure before you order.
Airtac LRM Miniature Linear Guide LRM12N1X370S10CHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X370S10CHT |
|---|---|
| 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 | 1 |
| Rail length | 370 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.
Model Code: Airtac LRM Miniature Linear Guide LRM12N1X370S10CHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X370 | 1 carriage on a 370 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. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 370 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.
Where the Airtac LRM Miniature Linear Guide LRM12N1X370S10CHT Is Used
Optical inspection fixture slide
A bottom-mounted rail keeps the top surface of a microscope-stage fixture flush, so sample trays slide over the 370 mm travel without snagging on screw heads.
Small dispensing head gantry
Electronics fluid-dispensing cells use short axes like this one; the preloaded carriage holds the needle tip steady against the rocking that would smear a dot pattern.
Semiconductor test handler
Compact IC test handlers move sockets and probes on 12 mm rails; the stainless rail and sealed carriage cope with the flux residues found around handling stations.
Is the Airtac LRM Miniature Linear Guide LRM12N1X370S10CHT the Right Guide?
Bottom-mount suits frames where the top of the rail must stay clear, but the seating beneath must then be machined to the same standard: ground or finish-milled, with edge radii and step depths inside the catalogue rows quoted per size. Screws from below should be torqued to the M3 figures - 196 N.cm into steel, 127 into cast iron, 98 into aluminium - or the M2 values (58.8, 39.2 and 29.4 N.cm) if your tapped holes are M2. If the load is substantial or hangs on a cantilever, step up to LSH, which publishes per-carriage dynamic, static and moment ratings you can size against, something LRM does not offer. For short travels needing crossed-roller rigidity instead, LGC is the closer match. Before committing, check the form, rail width, carriage length, count and rail length, the preload and its installation trade-off, accuracy grade, mounting direction, and confirm the load rating with us.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Load and moment confirmed with us
- ✓ Travel length and mounting space
- ✓ Accuracy grade and preload
- ✓ Mounting surface ground or finish-milled
- ✓ Pairing code, if replacing a part
Installation & Maintenance Notes
- check Mounting surface must be ground or finish-milled.
- check Torque the rail screws per the recommended figures, in sequence.
- check Keep the mounting corner radius inside the stated R maximum.
- check Do not angle the carriage onto the rail; balls can drop out.
- check Drive the supplied bolt caps into the mounting holes.
- check Re-grease every 100 km of travel or every 3–6 months.
- check Installation by qualified personnel per AirTAC docs.
Airtac LRM Miniature Linear Guide LRM12N1X370S10CHT FAQ
It is a complete set: 12 mm wide stainless rail, 370 mm long, with one standard-length carriage, medium preload (code C), high accuracy (code H) and bottom-mount rail holes. M3 fixing screws take 196 N.cm into steel, 127 N.cm into cast iron and 98 N.cm into aluminium (use the M2 set - 58.8, 39.2 and 29.4 N.cm - if your holes are M2). Ambient temperature must not exceed 80 C, peaking no higher than 100 C, and re-greasing is due every 100 km of travel or every 3 to 6 months. Basic dynamic load, static load and moment ratings are not published for LRM; we confirm them for this exact model on request.
Choose LRM when the envelope is tight and the duty is light - the 12 mm rail and low-profile carriage fit where LSH cannot. LSH is the larger series and it publishes per-carriage dynamic, static and moment ratings, so it is the honest choice when a cantilever or heavy payload needs to be sized on paper. Note that LRM12 is by far the deepest-stocked LRM size, so this exact configuration ships quickly from range stock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LRM Miniature Linear Guide LRM12N1X370S10CHT
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.