Airtac LRM Miniature Linear Guide LRM12L1X320S10BPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X320S10BPT 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 length320 mm
- AccuracyP — precision grade
- PreloadB — light 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 LRM12L1X320S10BPT
LRM12L1X320S10BPT is a complete AirTAC LRM miniature linear guide: one stainless-steel rail, 12 mm wide and 320 mm long, carrying a single long carriage fitted at the factory. The trailing T in the code means the rail is drilled for bottom mounting, so it is bolted down from underneath - the right arrangement when the top face of your baseplate must stay clear for travel, optics or sealing. Rail and block arrive together; nothing else is needed to build a working axis.
Because this is the precision (P) grade with light preload (B), the set trades some of the stiffness you would get from preload C for lower running drag and greater forgiveness on slightly imperfect mounting surfaces. The double-lip seal scrapes contaminant and holds grease, the outer cover shields the seal strip from larger debris, and the recirculating elements are Japanese-made ISO 3290 G10 grade balls, selected for roundness and wear life. Ball retention helps during handling, though a carriage tilted onto the rail can still shed balls, so fit it square and slowly. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C. AirTAC publishes no load or moment ratings for LRM; we confirm the figures for this exact model when you send the RFQ.
Airtac LRM Miniature Linear Guide LRM12L1X320S10BPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X320S10BPT |
|---|---|
| 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 | 320 mm (spliced sections) |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision grade |
| Preload grade | B — light 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 LRM12L1X320S10BPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X320 | 1 carriage on a 320 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| B | B — light preload — higher preload raises rigidity and tightens how flat the mounting surface must be. |
| P | P — precision 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 LRM12L1X320S10BPT Is Used
Laboratory autosampler XY stage
A compact liquid-handling module needs a 320 mm stroke on a narrow deck. The 12 mm bottom-mount rail sits flush under a cover plate, and precision grade P keeps sample pick positions repeatable.
PCB vision inspection camera travel
Scanning a camera head along a 12 mm rail above populated boards suits a light-duty miniature guide; the long carriage steadies the head against tipping as it travels.
Optical bench alignment slide
In a lens or fiber alignment fixture, light preload B lets an operator dial positions in with minimal drag, which matters when the final adjustment is made entirely by hand.
Is the Airtac LRM Miniature Linear Guide LRM12L1X320S10BPT the Right Guide?
If the load on this block is substantial or hangs on a cantilever, step up to AirTAC LSH instead: that series publishes per-carriage dynamic, static and moment ratings you can size against, which LRM does not. Where travel is short and the job needs crossed-roller rigidity, LGC is the closer match. Before ordering, work the checklist: complete set form, 12 mm rail width, long carriage, one block, 320 mm rail, light preload B with its easier-running trade-off, precision grade P, bottom-mount direction - and let us confirm the load rating for this model before you commit. At 12 mm you are in the deepest part of our stock, since 924 of the 988 LRM sets we hold are size 12, so this configuration ships quickly.
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 LRM12L1X320S10BPT FAQ
Rail width is 12 mm and the rail is 320 mm long, drilled for bottom mounting, with one long carriage, light preload B and precision grade P. Fasten with M2 screws at 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium, or M3 at 196, 127 and 98 N.cm respectively. Ambient temperature must not exceed 80 C, with transient peaks to 100 C. Re-grease with Kyodo Yushi PS No. 2 every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM; we confirm them per model - send the RFQ and we will verify this exact set.
Choose LRM when the envelope is tight and the duty is light: it is the small end of AirTAC's linear guides, and here you get a 12 mm rail in a 320 mm length with a precision-grade long block. Choose LSH when the load is heavy or cantilevered - LSH publishes dynamic, static and moment ratings per carriage that you can put straight into a sizing calculation, while LRM ratings must be confirmed with us per model. For very short travels needing crossed-roller rigidity, LGC is the third option. A pricing note: across our stocked LRM sets the spread from about $66 to $831 comes almost entirely from rail length and block count, not rail width, so trimming travel saves money faster than changing size.
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 LRM12L1X320S10BPT
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.