Airtac LRM Miniature Linear Guide LRM12N1X320S10CH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X320S10CH 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 LRM12N1X320S10CH
The LRM12N1X320S10CH is a complete top-mount set: a 12 mm stainless-steel rail cut to 320 mm with one standard-length recirculating-ball carriage. Preload C is the medium grade on LRM, removing internal clearance for a firmer, less springy carriage than the A or B options.
That firmness is the trade to understand: preload C runs with more drag and forgives less in the mounting surface, so plan on a ground or finish-milled base. Accuracy grade H is the high grade, well suited to general precision positioning. Inside the carriage, the balls are Japanese-made ISO 3290 G10, a grade that describes the balls alone and not the guide assembly. A double-lip seal and an outer cover protect the raceway from oil loss and debris. Do not strike the rail during installation; hidden damage can shorten life without any visible mark. Ambient temperature must not exceed 80 C, with brief peaks to 100 C. LRM carries no published load or moment ratings, so we confirm the figures for this exact configuration when you send the RFQ.
Airtac LRM Miniature Linear Guide LRM12N1X320S10CH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X320S10CH |
|---|---|
| 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 |
| 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 LRM12N1X320S10CH
| 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 LRM12N1X320S10CH Is Used
Semiconductor die handling
A pick head that lifts and places small dies in a compact assembly tool, where the firm feel of medium preload C steadies the head over a 320 mm axis.
High-cycle dispensing slide
A micro-dispenser carrier cycling a short stroke thousands of times per shift; the 100 km re-grease interval is the real service clock here, not the calendar.
Gauge and jig stand
A shop-floor checking fixture where a light probe carrier must return to the same position; high accuracy H covers repeatable stops along the travel.
Is the Airtac LRM Miniature Linear Guide LRM12N1X320S10CH the Right Guide?
When the load is substantial or overhung, move up to LSH: that series publishes dynamic, static and moment ratings per carriage, giving you numbers to calculate against, which LRM simply does not offer, so an LRM choice is verified with us rather than from a table. Where travel is short and crossed-roller rigidity is the priority, look across at LGC. Checklist for this set: complete form, 12 mm rail width, 320 mm rail, one standard carriage, medium preload C with its stiffer-but-heavier-drag character, high accuracy H, top-mount fixing, 10 mm end offset, and a confirmed load rating from us before ordering.
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 LRM12N1X320S10CH FAQ
Rail width 12 mm; rail length 320 mm; one standard carriage; medium preload C; high accuracy H; top-mount rail. Mount the rail on a ground or finish-milled surface and keep the ambient temperature at or under 80 C, with peaks no higher than 100 C. Re-grease every 100 km of travel or every 3 to 6 months; at a 200 mm stroke cycling once a second, 100 km arrives in roughly three weeks of continuous running, so distance usually binds before the calendar. Screw torque for M3 fasteners is 196 N.cm in steel, 127 N.cm in cast iron and 98 N.cm in aluminium. Load and moment ratings are not published for LRM; we confirm them per model.
Ask one question: does the load sit squarely and lightly, or does it weigh a lot or hang off a lever arm? LRM is built for light-duty precision positioning, and its catalogue publishes no load, moment or running-parallelism figures, so a heavy or cantilevered case cannot be checked on paper. LSH, the larger series, publishes dynamic, static and moment ratings per carriage and is the right place to size such loads; LGC covers short-travel jobs that want crossed-roller stiffness. If LRM12 still looks right, send us the load case and we will confirm the rating for this model before you 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 LRM12N1X320S10CH
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.