Airtac LRM Miniature Linear Guide LRM12N1X320S10CHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X320S10CHT 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 length320 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 LRM12N1X320S10CHT
This order code describes one complete assembly: a 320 mm stainless-steel guide rail, 12 mm across, with a single standard carriage running on it, delivered as a matched set with the grease already inside. The end holes sit 10 mm from each rail end (S10), and the trailing T in the code calls for bottom fixing, with the mounting screws driven up into the rail from below.
Preload C removes internal clearance with a medium squeeze. The gain is a firmer, less springy carriage under side loads; the cost is more rolling drag and less tolerance of imperfect mounting faces, so prepare the seat by grinding or finish milling. The carriage carries Japanese-made ISO 3290 G10 balls, retained so they will not spill during ordinary handling, although a hasty or angled refit can still drop one - take your time or use a dummy rail. A double-lip seal and outer cover protect the raceway from swarf and dust, and the common-rail profile lets any other LRM12 carriage share this rail. The ambient temperature ceiling is 80 C. Load and moment ratings are not published for LRM; we confirm the figure for this exact set through the RFQ.
Airtac LRM Miniature Linear Guide LRM12N1X320S10CHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X320S10CHT |
|---|---|
| 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 | 320 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 LRM12N1X320S10CHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X320 | 1 carriage on a 320 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, 320 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 LRM12N1X320S10CHT Is Used
Small robot gripper axis
Medium preload steadies the carriage of a compact gripper slide against the side loads of each pick cycle, so the jaws track straight part after part.
Solder paste inspection scanner
An SPI scanner head crossing a 320 mm PCB benefits from a clearance-free carriage, while bottom fixing keeps the scan window free of protruding screws.
Label-applicator head travel
A desktop labeler runs its applicator head back and forth on this 12 mm rail; with a short stroke cycling continuously, the 100 km re-grease interval arrives well before the calendar does.
Is the Airtac LRM Miniature Linear Guide LRM12N1X320S10CHT the Right Guide?
Choose this set when you want the firmest carriage LRM offers without leaving the miniature class - preload C is the stiffest grade in the series, and grade H accuracy keeps the cost sensible for machine building. If your calculations demand published numbers to size against, move to AirTAC LSH, which lists dynamic, static and moment ratings per carriage; if travel is short and crossed-roller stiffness matters more than stroke, LGC fits better. Checklist for ordering: complete set, 12 mm rail width, standard carriage length, one carriage, 320 mm rail, preload C, accuracy H, bottom-mount direction - and please confirm the load rating with us for this model before committing.
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 LRM12N1X320S10CHT FAQ
Preload C applies a medium internal preload: firmer under load, slightly higher drag, and less forgiving of mounting-surface errors, so grind or finish-mill the seat. This set is 12 mm rail width, 320 mm rail length, one standard carriage, accuracy H, bottom-mount. Torques: M2 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium; M3 196, 127 and 98 N.cm. Re-grease every 100 km or every 3 to 6 months; ambient limit 80 C with peaks to 100 C. Dynamic, static and moment load ratings are not published for LRM - ask us and we confirm them for this exact model.
Yes - this is a complete set: rail and one pre-greased standard carriage together. Should a carriage ever need replacing, note that carriage-only LRM codes are ordered separately, carry a pairing letter that must match the rail, and our carriage-only range is small, so a replacement is usually a special order. Never separate the carriage from the rail unnecessarily and never dismantle it: missing balls and damaged raceways follow, and accuracy suffers even when nothing looks broken.
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 LRM12N1X320S10CHT
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.