Airtac LRM Miniature Linear Guide LRM12L1X120S10AP
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X120S10AP 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 length120 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 LRM12L1X120S10AP
LRM12L1X120S10AP is the precision-grade version of this 120 mm miniature guide set: a 12 mm wide stainless-steel rail with a 10 mm end-hole offset, one long carriage, no preload (grade A), and accuracy grade P. Where the H grade keeps a positioning axis accurate and repeatable, P tightens the tolerances for work that measures as well as moves.
The P grade earns its keep only on a well-prepared base: mounting surfaces must be ground or finish-milled for the rated travel accuracy to be realised, and with more than one carriage on a rail the datum should sit on the same side of each one. Inside the carriage, ISO 3290 G10 Japanese balls run in the raceways, a double-lip seal scrapes oil and excludes dust, and an outer cover hides the screws and shields the seal strip. Keep ambient temperature at or below 80 C, peaks no higher than 100 C. Load and moment ratings are not published for LRM; ask us by RFQ and we confirm them for this exact configuration.
Airtac LRM Miniature Linear Guide LRM12L1X120S10AP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X120S10AP |
|---|---|
| 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 | 120 mm |
| 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 LRM12L1X120S10AP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X120 | 1 carriage on a 120 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, 120 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 LRM12L1X120S10AP Is Used
Fibre-optic alignment fixture
A bench fixture aligning fibre-optic components moves a sensor along a single axis, and the P grade supports the fine positioning the alignment demands.
Semiconductor probe station
A socket or probe test station indexing over short runs uses the precision travel, with the stainless rail and sealed carriage suiting a clean electronics environment.
Compact laser marking axis
A small laser marking head riding a single axis gets smooth, repeatable motion - but note the 80 C ambient limit if exhaust heat from the head builds up near the rail.
Is the Airtac LRM Miniature Linear Guide LRM12L1X120S10AP the Right Guide?
Precision grade does not change the load picture: LRM publishes no dynamic, static or moment ratings, so this set is chosen for envelope, smoothness and accuracy, with capacity confirmed per model before ordering. If your application carries a substantial or cantilevered load, size it in the LSH series, which publishes those ratings per carriage; if travel is short and crossed-roller rigidity is the priority, LGC is the alternative. It also pays to know that 12 mm is the heart of this range - availability is deepest there - so this width is the practical choice. For this code, check: complete set, 12 mm rail width, long carriage, one block, 120 mm rail, preload A (free-running, where light preload B would add stiffness at the cost of drag), accuracy P, top-mount mounting, and the load case confirmed by RFQ.
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 LRM12L1X120S10AP FAQ
12 mm wide stainless rail, 120 mm long, 10 mm end-hole offset; one long carriage; preload A (none); accuracy P; top-mount rail. Screw torque into the mounting surface: M2 at 58.8 N.cm steel, 39.2 cast iron, 29.4 aluminium; M3 at 196, 127 and 98 N.cm. Re-grease through the rear lubrication hole every 100 km of travel or every 3 to 6 months; ambient limit 80 C, peaks to 100 C. One thing is deliberately absent: load and moment ratings. LRM publishes none, so we confirm them for this model before you order.
No. Accuracy grade affects travel precision, not capacity, and LRM publishes no load or moment ratings at any grade - H or P - so capacity is confirmed per model with us before ordering. If you need ratings you can calculate against, the larger LSH series publishes per-carriage dynamic, static and moment figures; for short travel where crossed-roller rigidity is the priority, compare LGC. What P does give you is tighter travel tolerances, provided the mounting surface is ground or finish-milled.
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 LRM12L1X120S10AP
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.