Airtac LRM Miniature Linear Guide LRM12N1X420S10BP
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X420S10BP 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 length420 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 LRM12N1X420S10BP
LRM12N1X420S10BP pairs a 420 mm stainless-steel rail, 12 mm wide, with one standard recirculating-ball carriage and raises the accuracy grade to P - precision, the tighter of the two grades offered on this series. This is a complete top-mount set with a 10 mm end-hole offset, so a single part number puts the whole axis on your bench.
The precision grade is what you specify when an optical, measuring or dispensing element rides the carriage and travel consistency along the full 420 mm matters. Light preload preserves free-running motion; the ISO 3290 G10 Japanese balls keep the rolling smooth, and the ball-retention design limits the chance of lost balls during fitting, backed by a double-lip seal and an outer cover against dust. Do not exceed an 80 C ambient, with 100 C as the short-peak ceiling. It also helps that LRM12 is by far the deepest stocked size in the range, so a precision set like this typically ships without a long wait. No C or C0 rating exists in the LRM catalogue - request the per-model confirmation through our RFQ and we will supply it.
Airtac LRM Miniature Linear Guide LRM12N1X420S10BP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X420S10BP |
|---|---|
| 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 | 420 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 LRM12N1X420S10BP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X420 | 1 carriage on a 420 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, 420 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 LRM12N1X420S10BP Is Used
Dimensional measuring fixture
A small bench measuring machine or vision checker benefits from the P accuracy grade when the carriage must track consistently over the full 420 mm of travel.
Machine-vision camera focus rail
Ride an inspection camera along a precision-graded rail so the lens plane stays true over the stroke; light preload lets the axis be trimmed by hand without fighting heavy drag.
Compact dispensing cell
A bench-top glue or solder-paste dispenser on a 420 mm axis gets consistent bead placement when the guide is precision-graded and the carriage ships pre-filled with grease.
Is the Airtac LRM Miniature Linear Guide LRM12N1X420S10BP the Right Guide?
Accuracy first? Then compare this P-grade set against the H version of the same geometry and against the wider range: LSH for applications whose loads are heavy or offset - its published dynamic, static and moment ratings let you verify margins, something the LRM catalogue does not allow - and LGC for short-stroke work where crossed-roller rigidity beats ball recirculation. The checklist for this SKU: complete set, 12 mm rail, 420 mm length, one standard carriage, B light preload (smooth running; C is the stiffer, less forgiving choice), P precision accuracy, top-mount rail, and a load figure we will confirm from the datasheet on request.
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 LRM12N1X420S10BP FAQ
You can rely on these: 12 mm rail width, 420 mm rail length, 10 mm end offset, a single standard carriage on top-mount holes, light B preload and P precision accuracy. Fit with M2 screws at 58.8 N.cm (steel), 39.2 N.cm (cast iron), 29.4 N.cm (aluminium), or M3 at 196, 127 and 98 N.cm. Re-grease after each 100 km of travel, or every 3 to 6 months, and keep the ambient at or below 80 C, peaks to 100 C. Load and moment ratings are not in the LRM catalogue; we will confirm them for this exact model through the RFQ.
If the load can be verified against a table - heavy payloads, overhung tooling, moment-loaded mounting - take LSH, whose catalogue lists per-carriage dynamic, static and moment ratings. LRM has none of those figures published, which is why we confirm capacity model by model. LRM12 is the right call for light, precise, compact stages like this 420 mm precision-graded set; for very short strokes needing maximum rigidity, compare LGC crossed-roller guides as well.
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 LRM12N1X420S10BP
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.