Airtac LRM Miniature Linear Guide LRM12L1X145S10CHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X145S10CHT 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 lengthLong carriage
- Carriages1
- Rail length145 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 LRM12L1X145S10CHT
This code ends in T, which changes one thing that matters on the shop floor: the rail mounts from below, screws passing up through its base, so the fasteners sit hidden inside a pocket or channel and nothing projects above the running surface. LRM12L1X145S10CHT is otherwise a full set - a 12 mm wide stainless steel rail cut to 145 mm, one long carriage, medium preload C, high accuracy H, 10 mm end-hole offset.
Bottom fixing suits compact assemblies where the top face has to stay clear, but it rewards preparation: the manufacturer expects ground or finish-milled seats to achieve the rated travel accuracy, and either edge of the rail can serve as the datum. The carriage runs on Japanese ISO 3290 G10 balls (that grade covers the balls only), held in place by a retention feature so they do not spill during normal handling, behind a double-lip seal and an outer cover. Keep ambient temperature under 80 C. Load and moment ratings are not published for LRM; we will confirm them for this model - just ask.
Airtac LRM Miniature Linear Guide LRM12L1X145S10CHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X145S10CHT |
|---|---|
| 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 | 1 |
| Rail length | 145 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 LRM12L1X145S10CHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X145 | 1 carriage on a 145 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, 145 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 LRM12L1X145S10CHT Is Used
Laser alignment carriage
An alignment optic carrier on a compact laser bench, bolted from below so the top of the baseplate stays clear for fixtures and beam paths.
Fiducial measuring fixture
A checking fixture for small stamped connector parts, with the rail recessed in the base so swarf and handling cannot reach the screws.
Probe card positioning
A fine-position slide carrying a probe card or test socket in a small semiconductor test rig, where concealed fixing keeps the deck flush.
Is the Airtac LRM Miniature Linear Guide LRM12L1X145S10CHT the Right Guide?
Size this against the alternatives honestly. If the moving mass is substantial or hangs off a cantilever, AirTAC LSH is the better tool because its catalogue prints per-carriage dynamic, static and moment ratings - figures LRM simply does not publish. For short travels needing crossed-roller stiffness, look instead at LGC. When you settle on this set, check every field: complete set (yes), 12 mm rail width, long carriage, one carriage, 145 mm rail, preload C (stiff but less forgiving of imperfect seats), accuracy H, bottom-mount fixing, and the 10 mm end-hole offset against your hole pattern. Then ask us to confirm the load rating for this model before you commit.
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 LRM12L1X145S10CHT FAQ
A 12 mm wide stainless steel rail of 145 mm length, one long carriage, preload grade C, accuracy grade H, bottom-mount fixing and a 10 mm end-hole offset. Use 58.8 N.cm for M2 screws or 196 N.cm for M3 into steel, with lower values for cast iron and aluminium. Keep the ambient at or under 80 C, with brief peaks to 100 C. Grease is Kyodo Yushi PS No. 2 from the factory; re-grease at 100 km of travel or every 3 to 6 months. LRM publishes no load or moment ratings, so we confirm the figures for your specific model before ordering.
You receive the complete set: the 145 mm stainless rail plus one long carriage already fitted to it, ready to screw down from below. There is no second carriage, no mounting screws and no lubricant in the package, and this is not a carriage-only part. If you ever need a spare carriage, note that rails and carriages are matched by a pairing code, and our carriage-only stock is very thin - most spares are a special order.
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 LRM12L1X145S10CHT
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.