Airtac LRM Miniature Linear Guide LRM12L1X270S10APT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X270S10APT 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 length270 mm
- AccuracyP — precision grade
- PreloadA — no 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 LRM12L1X270S10APT
LRM12L1X270S10APT pairs two deliberate choices in one AirTAC miniature guide: precision accuracy grade P and a bottom-mount (T) rail. The set is one 12 mm wide stainless steel rail, 270 mm long, with a single long recirculating-ball carriage already fitted. With no preload (grade A), the carriage glides with minimal drag - handy where a stage is moved by hand or by a very small drive.
Mounting from below leaves the rail's top face uninterrupted, which suits clean decks where the workpiece has to sit flat along the whole travel, and precision grade suits builds where paired rails must track consistently. Japanese ISO 3290 G10 balls run in the recirculating grooves behind a double-lip seal, and an outer cover hides the fixings while keeping larger particles off the seal strip. Do not exceed 80 C ambient, with brief peaks to 100 C. No load or moment rating is published for LRM - the confirmed figure for this exact configuration follows when you ask us via RFQ.
Airtac LRM Miniature Linear Guide LRM12L1X270S10APT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X270S10APT |
|---|---|
| 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 | 270 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 | A — no 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 LRM12L1X270S10APT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X270 | 1 carriage on a 270 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| A | A — no 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, 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 LRM12L1X270S10APT Is Used
Semiconductor probe station
A bottom-mounted precision rail under a probe-card carrier keeps the deck clear for wafer handling while the long carriage tracks a straight 270 mm line.
Laser optics alignment bench
Preload-free precision travel lets mirrors and beam-splitter mounts be nudged into alignment without stick-slip on a small optical table.
Machine-vision camera rail
A vision camera on the long carriage scans parts along a straight line, with the bottom-mount fixing keeping the sensor's line of sight unobstructed.
Is the Airtac LRM Miniature Linear Guide LRM12L1X270S10APT the Right Guide?
This is a complete set, not a spare carriage, so begin the checklist at form: set, rail width 12 mm, carriage length long, carriage count one, rail length 270 mm, preload A (none - smoothest running, least resistance to tipping loads), accuracy P, mounting direction bottom. When the load is real rather than incidental, move up to LSH, whose published dynamic, static and moment ratings per carriage turn sizing into a calculation instead of a question; LRM gives you no published numbers to calculate with. For short, stiff travels, LGC's crossed rollers are the answer. Close by confirming the load rating with us for this model before you order.
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 LRM12L1X270S10APT FAQ
Rail width 12 mm, rail length 270 mm, one long carriage, no preload (grade A), precision accuracy (grade P), bottom-mount fixing. Factory grease is Kyodo Yushi PS No. 2; re-lubricate every 100 km of travel or every 3 to 6 months through the hole at the carriage rear. Screw torque in steel is 58.8 N.cm for M2 and 196 N.cm for M3. The ambient must stay within 80 C, peaking briefly at 100 C. Load, moment, running-parallelism and speed limits are not published for LRM; request the confirmed figures for this model via RFQ.
The box contains a complete set: one 270 mm, 12 mm wide rail with one long carriage already fitted, so no assembly is needed on arrival. Spare carriages do exist as carriage-only codes, but rails and carriages must share a pairing letter - note the code off your original part before ordering. Our carriage-only stock is thin (four SKUs), so most replacements are special orders. Fit a spare with care: the ball retainer helps, yet an angled or hasty insertion can still release balls.
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 LRM12L1X270S10APT
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.