Airtac LRM Miniature Linear Guide LRM12N1X345S10BP
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X345S10BP 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 length345 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 LRM12N1X345S10BP
This code specifies the precision option within the LRM range: LRM12N1X345S10BP is a complete set built around a 12 mm wide, 345 mm long stainless-steel rail with one standard-length ball carriage, top-mounted, with the light preload B grade and accuracy grade P. Grade P is the tighter of the two accuracy classes LRM offers, and it is what you specify when straightness of travel feeds directly into a measurement or an optical path.
Two non-obvious points help here. First, across the stocked LRM range the price spread from about $66 to $831 is driven almost entirely by rail length and carriage count rather than rail width - a 345 mm rail costs more than a short one for reasons that have nothing to do with the 12 mm size. Second, the balls inside the carriage are Japanese-made to ISO 3290 G10, a grade that applies to the balls alone and speaks to roundness and wear, not to the accuracy class of the assembled guide; that class is what your P suffix buys. A double-lip seal and an outer cover protect the raceway, and the ambient limit is 80 C with peaks to 100 C. Load and moment ratings are not published for LRM - tell us the duty on your RFQ and we will confirm the figure for this model.
Airtac LRM Miniature Linear Guide LRM12N1X345S10BP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X345S10BP |
|---|---|
| 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 | 345 mm |
| 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 LRM12N1X345S10BP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X345 | 1 carriage on a 345 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, 345 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 LRM12N1X345S10BP Is Used
Laboratory measuring fixture
A camera- or indicator-based checking station in a quality lab. Accuracy grade P keeps the carriage tracking consistently over the full 345 mm stroke, which is what a repeatable measurement setup needs.
Optical inspection slide
A microscope camera slide scanning circuit boards in an electronics QC cell. The precision grade limits side-to-side wander so the optics stay on feature, and the double-lip seal keeps dust from the lens stage.
Component test handler
A small semiconductor or electronics handler moving a sensor head between an input tray and a test socket. Light preload B gives play-free yet easy-moving travel for a fast, light-duty head - confirm the load with us first.
Is the Airtac LRM Miniature Linear Guide LRM12N1X345S10BP the Right Guide?
When the load is more than light, or it hangs off a cantilever, move up to AirTAC LSH, which publishes per-carriage dynamic, static and moment ratings you can calculate against - the very numbers LRM withholds. If the stroke is short and the job demands crossed-roller rigidity, LGC is the alternative worth pricing. Before you order this BP set, confirm: complete set form, 12 mm rail width, standard carriage, single carriage on a 345 mm rail, preload B (smooth running, slight internal give), accuracy P, top-mount rail, and finally the load rating confirmed with us - we reply with the per-model figure.
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 LRM12N1X345S10BP FAQ
Complete set: 12 mm rail width, 345 mm rail length, one standard carriage, light preload B, precision accuracy P, top-mount rail, 10 mm hole offset from the rail ends. Factory-filled with Kyodo Yushi PS No. 2; top up via the rear lubrication hole every 100 km of travel or every 3 to 6 months, and never mix lubricant types. Ambient limit 80 C, transient peaks 100 C. Installation torque for M2 screws is 58.8 N.cm in steel, 39.2 N.cm in cast iron and 29.4 N.cm in aluminium; for M3 screws, 196, 127 and 98 N.cm respectively. No load or moment rating is published for LRM - we confirm it per model before ordering.
Choose LRM when the envelope is miniature and the duty is light, as here. Choose LSH when the load is substantial or cantilevered and you need published per-carriage dynamic, static and moment ratings to size against, since LRM publishes none. For a short stroke where crossed-roller rigidity matters more than stroke length, compare LGC as well. Either way, send us the duty and we will confirm the load figure for the specific model you select.
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 LRM12N1X345S10BP
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.