Airtac LRM Miniature Linear Guide LRM12N1X445S10CHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X445S10CHT 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 length445 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 LRM12N1X445S10CHT
LRM12N1X445S10CHT is the bottom-mount version of this 12 mm miniature guide: a 445 mm stainless-steel rail with one standard recirculating-ball carriage, prepared so the fixing screws pass up through the machine table from underneath. Only the carriage stands proud of the rail top, which leaves the working face clear for guards, covers or product - and the trailing T in the code is how you tell this version apart at a glance.
Inside the carriage, the balls are Japanese-made to ISO 3290 G10, a double-lip seal does the oil-scraping and fine-dust work, and an outer cover keeps bigger debris away from the seal strip. The common-rail profile means other LRM12 carriage types can share this same rail if the machine evolves. Because the seating is machined from below, prepare a ground or finish-milled surface and decide early which rail side is the datum; with more than one carriage, keep the datum on the same side for better running accuracy. Keep ambient temperature under 80 C, peaks to 100 C. LRM has no published load or moment rating, so the numbers for this exact model are confirmed before purchase - raise the RFQ and we will supply them.
Airtac LRM Miniature Linear Guide LRM12N1X445S10CHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X445S10CHT |
|---|---|
| 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 | 445 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 LRM12N1X445S10CHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X445 | 1 carriage on a 445 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, 445 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 LRM12N1X445S10CHT Is Used
Semiconductor probe fixture
Positioning a probe card over a test substrate in a compact wafer-level test rig. Bottom-mount fixings keep the top face unobstructed so shields and vacuum plumbing can sit directly over the guide.
Connector assembly shuttle
Feeding wire harness connectors between crimp and test stations on a small automated bench. The 445 mm rail spans the process pitch, and the outer cover deflects cut wire ends away from the seal strip.
Fixture clamping slide
A manually operated slide that positions workpieces under a clamping toggle on a machining fixture. Grade C preload removes play so the stop position repeats without a locking screw.
Is the Airtac LRM Miniature Linear Guide LRM12N1X445S10CHT the Right Guide?
Where the load is heavy or reaches out on a cantilever, the AirTAC LSH series is the correct step up: it publishes dynamic, static and moment ratings per carriage that you can verify against your own figures, something LRM deliberately leaves to per-model confirmation. For short strokes needing crossed-roller stiffness, look across at LGC instead.
Check every element before ordering: set or carriage-only form; 12 mm rail width; standard versus long carriage; how many carriages; the 445 mm rail length; preload grade C and its trade of higher drag for zero play; grade H accuracy; bottom-mount direction (this code); and the matching code if you are replacing one half of a pair. Then confirm the load and moment figures with us for this model - we validate them against your duty cycle before you spend anything.
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 LRM12N1X445S10CHT FAQ
Rail width 12 mm, rail length 445 mm, one standard-length carriage, preload grade C (medium), accuracy grade H (high), rail secured from below in bottom-mount style with holes 10 mm from each end. Screw torque for M3 is 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminium; M2 values are 58.8, 39.2 and 29.4 N.cm. Operating ambient must not exceed 80 C (transient peaks 100 C) and re-greasing is due every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for the LRM series; we confirm them for this specific model on request.
It is a complete set: the 445 mm bottom-mount stainless rail and one standard carriage, assembled and pre-greased. Carriage-only AirTAC codes carry the letters BK and arrive with no rail at all, and our carriage-only stock is thin (just four SKUs), so almost everyone buys a full set like this one. If you ever need a spare carriage on its own, send us the pairing code from the original label and we will quote it as 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 LRM12N1X445S10CHT
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.