Airtac LRM Miniature Linear Guide LRM12N1X270S10BH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X270S10BH 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 length270 mm
- AccuracyH — high 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 LRM12N1X270S10BH
This AirTAC LRM code is a complete miniature linear guide set: a single 270 mm stainless-steel rail, 12 mm wide, fitted with one standard-length recirculating-ball carriage, preloaded to the light B grade and machined to high accuracy (H). Fixing holes start 10 mm in from each rail end and the rail bolts down from the top. The carriage arrives pre-filled with Kyodo Yushi PS No. 2 grease, so the set is ready to run once mounted.
Light preload is the quiet advantage here: it removes play for smoother, more repeatable travel than an unloaded A set, while still tolerating the small surface imperfections a hand-finished plate can leave. The carriage rolls on ISO 3290 G10 grade balls - that grade applies to the balls alone, covering their roundness and wear, not to the guide assembly or its accuracy class. A double-lip seal scrapes lubricant back and keeps dust out, and an outer cover shields the seal strip from larger debris. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C. Load and moment ratings are not published for LRM; we confirm them for this exact model before you order - send us the RFQ.
Airtac LRM Miniature Linear Guide LRM12N1X270S10BH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X270S10BH |
|---|---|
| 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 | 270 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high 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 LRM12N1X270S10BH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X270 | 1 carriage on a 270 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. |
| H | H — high grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 270 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 LRM12N1X270S10BH Is Used
Compact XY dispensing stage
A glue or solder-paste dispensing head travelling a couple of hundred millimetres over a circuit panel benefits from the light preload, which keeps the needle path repeatable without demanding a heavy frame.
Small pick-and-place head
Benchtop SMT prototype cells run a 12 mm rail under a lightweight gantry; the standard carriage keeps the head plate compact and the ball-retention design eases first assembly on the bench.
Microplate handler in a laboratory
Sample-deck slides moving trays between reader and washer stations make short, precise strokes where a 270 mm rail length maps neatly onto standard plate footprints.
Is the Airtac LRM Miniature Linear Guide LRM12N1X270S10BH the Right Guide?
Stay with LRM when the envelope is small and the duty light. Move up to LSH when the load is heavy or overhung: LSH publishes dynamic, static and moment ratings per carriage that you can size against, which LRM does not offer, so a cantilevered load really needs those numbers. If travel is short and the design wants crossed-roller rigidity instead, LGC is the cross-over choice. Before ordering, run the checklist: form (complete set), 12 mm rail width, standard carriage length, one carriage, 270 mm rail, preload B with the trade-off that stiffer running asks for a cleaner mounting surface, accuracy H, top-mount direction. Size 12 is the deepest-stocked LRM width - 924 of the 988 sets we hold - so this configuration ships fast. Confirm the load rating with us first and we will pull the figure for your model.
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 LRM12N1X270S10BH FAQ
The confirmed ones: a 12 mm wide stainless rail, 270 mm long, one standard-length carriage, light preload (B), high accuracy (H), top-mount fixing with holes 10 mm from the rail ends. Installation data: M2 screws torque to 58.8 N.cm in steel, 39.2 N.cm in cast iron and 29.4 N.cm in aluminium; M3 screws to 196, 127 and 98 N.cm. Ambient temperature limit is 80 C with brief peaks to 100 C, and re-greasing falls due every 100 km of travel or every 3 to 6 months - at a 200 mm stroke cycling once per second, 100 km passes in about three weeks of continuous running, so the distance binds first. Load and moment ratings are not published for LRM; we confirm them per model, so raise an RFQ before you commit.
Choose LRM when space is the binding constraint and the duty is light. Choose LSH when the load is substantial or cantilevered, because LSH carries published per-carriage dynamic, static and moment ratings you can plug into a calculation, while LRM has no published ratings to size against. For short travel where crossed-roller rigidity matters more than rail length, look at LGC instead. If you stay with LRM, send us the load case and we will confirm suitability for this exact model.
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 LRM12N1X270S10BH
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.