Airtac LRM Miniature Linear Guide LRM12L2X120S10APT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X120S10APT 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 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 LRM12L2X120S10APT
LRM12L2X120S10APT is a complete AirTAC LRM miniature linear guide set: a 12 mm wide stainless-steel rail, cut to 120 mm, carrying two long recirculating-ball carriages. This build is precision accuracy grade P, preload grade A (no preload), and the mounting holes are tapped for bottom-mount fixing, so the screws enter from underneath the rail. The end-hole offset is 10 mm. The set arrives assembled and factory-greased, ready to bolt down.
Precision grade P is the tighter of the two LRM grades, which matters when the carriage must hold an optical or measuring axis level along the stroke. Bottom-mount holes suit a frame whose top face cannot be drilled, keeping the working deck uninterrupted. Inside each block, ISO 3290 G10 Japanese steel balls run in the raceways (the grade applies to the balls alone), held by a ball-retention feature that limits dropped balls during handling - though a carriage offered at an angle or swapped hastily can still shed some. A double-lip seal scrapes oil and excludes dust, and an outer cover shields the seal strip from larger debris. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C. Load and moment figures are not published for LRM; we confirm the rating for your exact model - send us the RFQ.
Airtac LRM Miniature Linear Guide LRM12L2X120S10APT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X120S10APT |
|---|---|
| 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 | 120 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 LRM12L2X120S10APT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X120 | 2 carriages 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, 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 LRM12L2X120S10APT Is Used
Wafer inspection XY stage
Two long carriages under a benchtop microscope stage hold the imaging axis level across a 120 mm stroke at precision grade, keeping focus drift out of die-inspection images.
Pipetting workstation axis
A laboratory liquid-handler slides its pipetting head along this 12 mm rail between microplate positions, where the low profile fits inside a crowded deck.
Laser beam-steering slide
An optics-table slider carrying a mirror mount; precision grade P keeps the reflected beam steady as the carriage traverses.
Is the Airtac LRM Miniature Linear Guide LRM12L2X120S10APT the Right Guide?
Where the duty turns substantial or cantilevered, step up to AirTAC LSH: it publishes dynamic, static and moment ratings per carriage, so you can size against real numbers, which LRM does not provide. When the stroke is short and the priority is crossed-roller rigidity rather than ball smoothness, LGC is the cross-over pick. Before ordering, tick every element of this code: complete set form, 12 mm rail width, long carriage, two blocks, 120 mm rail length, preload A (none), precision grade P, bottom-mount direction, 10 mm end offset - and confirm the load rating with us by RFQ before committing.
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 LRM12L2X120S10APT FAQ
Rail width 12 mm; rail length 120 mm; two long carriages; preload A (none); accuracy P (precision); bottom-mount holes; 10 mm end offset. Screw torque: M2 - 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium; M3 - 196 N.cm into steel, 127 into cast iron, 98 into aluminium. Ambient limit 80 C, peaks to 100 C. Re-grease every 100 km of travel or every 3 to 6 months, whichever comes first. Load and moment ratings are not published for LRM; we confirm the figures for this exact model on request.
One stainless-steel rail with two long carriages already fitted - a complete set, not a bare carriage. Mounting surfaces should be ground or finish-milled to reach the travel accuracy the grade promises; either rail side can serve as the datum, and with two blocks, keep the datum on the same side for both. Delivery terms are arranged through our sales team - send the RFQ.
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 LRM12L2X120S10APT
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.