Airtac LRM Miniature Linear Guide LRM12L2X145S10AP
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X145S10AP is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriages. 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
- Carriages2
- Rail length145 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 LRM12L2X145S10AP
LRM12L2X145S10AP is a complete AirTAC LRM miniature linear guide set. The box holds one 12 mm wide stainless-steel rail, 145 mm long with a 10 mm end-hole offset, and two long carriages pre-fitted to it. The rail is drilled for top-mount fixing, so you drive the screws down from above into your mounting deck. Nothing else is needed to build a working axis: rail, carriages and recirculating balls arrive as one matched assembly.
This is the precision-grade, zero-preload version: accuracy P with preload A, so the carriages roll with the least drag this series offers and trace the rail as true as LRM can. The two long carriages spread contact over more balls and give a longer bearing span, which helps on any overhung stage plate. Inside each carriage run Japanese-made balls graded ISO 3290 G10, held captive by the ball-retention design so they stay put during handling, behind a double-lip seal and an outer cover that hides the fixings and keeps debris off the seal strip. Ambient temperature must stay below 80 C, with peaks to 100 C. Load and moment ratings are not published for the LRM series; we confirm the figures for this exact model when you send an RFQ. Worth knowing too: size 12 is by far the deepest part of our LRM listing, so a layout built on a 12 mm rail is the smoothest configuration to order.
Airtac LRM Miniature Linear Guide LRM12L2X145S10AP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X145S10AP |
|---|---|
| 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 | 2 |
| Rail length | 145 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 LRM12L2X145S10AP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X145 | 2 carriages on a 145 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, 145 mm |
| Carriage | Yes, 2 |
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 LRM12L2X145S10AP Is Used
Optical inspection stage
A small microscope or camera stage that sweeps a sample past the optics benefits from accuracy P and drag-free preload A travel, where repeatability matters more than stiffness.
Laser alignment slide
Aligning a beam or sensor head along a 145 mm axis calls for a true, low-friction slide; the precision-grade rail and twin long carriages keep the head square over the stroke.
Semiconductor assembly fixture
Small component placement and bonding fixtures in electronics and semiconductor work fit this 12 mm light-duty format, especially where the fixture slides under its own low mass only.
Is the Airtac LRM Miniature Linear Guide LRM12L2X145S10AP the Right Guide?
Start by matching the configuration point by point: form (this is a complete set, rail plus two long carriages), rail width 12 mm, carriage length long, count of two, rail length 145 mm, preload A and accuracy P, and top-mount fixing. Preload A rolls freest but leaves a little internal clearance; if you need the carriage to sit tight under reversing loads, the same geometry exists with preload B or C, though the tighter grades trade some free rolling away and ask for cleaner mounting surfaces. Before committing, confirm the load and moment ratings with us for this model, since LRM publishes none.
Size upward when the load is substantial or cantilevered: the larger LSH series publishes per-carriage dynamic, static and moment ratings you can actually calculate against, which LRM does not, so an overhung mechanism carrying real weight belongs there. Step across to LGC when the travel is short and the job demands crossed-roller rigidity in a compact footprint.
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 LRM12L2X145S10AP FAQ
It is a complete miniature guide set: 12 mm wide stainless rail, 145 mm long with a 10 mm end-hole offset, carrying two long carriages, top-mount fixing, preload A (none) and accuracy grade P (precision). Fixing screws take M2 torque of 58.8 N.cm in steel, 39.2 N.cm in cast iron and 29.4 N.cm in aluminium, or M3 at 196, 127 and 98 N.cm respectively. Ambient temperature must not exceed 80 C, with transient peaks to 100 C, and the grease should be refreshed every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for the LRM series; send us an RFQ and we confirm the figures for this exact model.
One rail and two carriages, assembled and matched. The rail is stainless steel, drilled for screws driven from above, and the outer cover on each carriage hides the fixing screws and protects the seal strip. There is no motor, no drive and no mounting hardware for your deck in the box. Note that LRM5 rails and carriages cannot be split off and ordered separately at all, and even in size 12 our carriage-only listing is thin, so if you ever want a spare carriage for this rail, plan ahead - most replacements are a special order.
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 LRM12L2X145S10AP
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.