Airtac LRM Miniature Linear Guide LRM12N1X285S17.5BP
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X285S17.5BP 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 length285 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 LRM12N1X285S17.5BP
LRM12N1X285S17.5BP is a complete 12 mm miniature guide set: a 285 mm stainless-steel rail carrying one standard-length recirculating-ball carriage, with the end mounting holes offset 17.5 mm from the rail ends. It arrives assembled, sealed and pre-greased with lubricant.
Two upgrades separate this code from the plain version: preload B adds a light internal preload for a firmer, less chattery feel, and accuracy grade P is the tighter precision grade offered on LRM. The rolling elements are ISO 3290 G10 balls - that grade covers the balls alone, not the assembled guide - retained in the carriage so they cannot fall out during fitting, with a double-lip seal and an outer cover protecting the seal strip and screw line. Keep ambient temperature at or below 80 C. Load and moment figures are not published for this series; request them per model through the RFQ and we will confirm for this code.
Airtac LRM Miniature Linear Guide LRM12N1X285S17.5BP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X285S17.5BP |
|---|---|
| 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 | 285 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 LRM12N1X285S17.5BP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X285 | 1 carriage on a 285 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, 285 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 LRM12N1X285S17.5BP Is Used
Semiconductor inspection station
A die or wafer inspection microscope stage, where the precision P grade and light preload give a firm, repeatable axis under a low-profile camera.
Laser alignment slide
A small optical bench slide parking a mirror or beam-splitter; preload B removes slop so the beam position holds steady between adjustments.
Micro-dispensing gantry
A benchtop gantry dotting adhesive on small assemblies; the standard carriage keeps the head plate compact and the light preload steadies the nozzle path.
Is the Airtac LRM Miniature Linear Guide LRM12N1X285S17.5BP the Right Guide?
When the job carries real load or a cantilever, move up to LSH: that series publishes dynamic, static and moment ratings per carriage, giving you numbers to design against that LRM simply does not have. For short travel needing crossed-roller stiffness, cross over to LGC. Order checklist for this SKU: complete-set form, 12 mm rail width, standard carriage length, single block, 285 mm rail length, preload B (a firmer feel with slightly more drag than the A grade), precision accuracy P, top-mount fixing, and a confirmed load check with us. Pairing codes only matter for carriage-only purchases, so ignore them here.
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 LRM12N1X285S17.5BP FAQ
Rail width 12 mm; rail length 285 mm; one standard carriage; preload B, light; accuracy P, precision; top-mount rail holes. Screw tightening torque is 58.8 N.cm for M2 screws and 196 N.cm for M3 screws into steel, lower in cast iron and aluminium. Re-grease every 100 km or every 3 to 6 months, and keep ambient temperature at or below 80 C. Note the limits: no dynamic or static load rating, no moment rating and no speed limit are published for LRM. We confirm the load figures for this exact model on request.
Choose LRM when the priority is a tiny envelope, smooth light-duty travel and precision grades; choose LSH when the load is heavier or overhung, because LSH publishes per-carriage dynamic, static and moment ratings you can size against, which LRM does not. If travel is short and rigidity is critical, LGC with crossed rollers is the third option. Send the RFQ with your load sketch and we will confirm which series and model fit.
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 LRM12N1X285S17.5BP
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.