Airtac LRM Miniature Linear Guide LRM12L2X495S10AP
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X495S10AP 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 length495 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 LRM12L2X495S10AP
LRM12L2X495S10AP carries the P accuracy grade - precision, one step above the high grade fitted to most stocked LRM12 sets. The code describes a complete set: a 12 mm wide stainless-steel rail 495 mm long with two long recirculating-ball carriages, mounted from the top. With two or more carriages on one rail, AirTAC advises putting the datum face on the same side for every carriage to get the best running accuracy.
Precision grade costs more, and the price of any LRM set is driven mainly by rail length and carriage count rather than rail width, so trimming travel is the first lever on cost - not stepping down in size. Inside, the balls are Japanese ISO 3290 G10 grade, held by a retention design so they do not fall out during careful handling; a double-lip seal manages lubrication and dust, and an outer cover protects the seal strip and screws. Do not strike the rail during fitting - accuracy can be lost with no visible damage. Ambient temperature is capped at 80 C, with brief peaks to 100 C. Load and moment ratings are confirmed per model, so send an RFQ and we will supply the figures.
Airtac LRM Miniature Linear Guide LRM12L2X495S10AP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X495S10AP |
|---|---|
| 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 | 495 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 LRM12L2X495S10AP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X495 | 2 carriages on a 495 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, 495 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 LRM12L2X495S10AP Is Used
Laser diode focus slide
A focus slide carrying a lens tube in a laser diode test bench: precision grade P travel keeps the beam axis repeatable between measurement runs.
Fibre alignment fixture
A fibre-array alignment fixture where an operator nudges the carriage by hand against a micrometer: preload A gives free, low-drag motion for fine manual positioning.
Wafer inspection station
A bench-top station inspecting small silicon pieces under a microscope, where a 12 mm rail with two long blocks keeps the sample holder level and repeatable across the scan.
Is the Airtac LRM Miniature Linear Guide LRM12L2X495S10AP the Right Guide?
With P grade accuracy, this set suits a measurement or optics build where straightness of travel matters more than brute capacity. The moment a real load or a cantilever enters the picture, size against LSH instead - it publishes dynamic, static and moment ratings per carriage, which LRM deliberately does not, so nothing has to be guessed. If your travel is short and you want crossed-roller rigidity, compare LGC.
Match checklist: complete set, 12 mm rail width, long carriage, two blocks, 495 mm length, preload A (free-moving; choose B or C if you need less play and accept more drag), accuracy P, top-mount fixing, and a load rating confirmed by us before you commit.
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 LRM12L2X495S10AP FAQ
Rail width 12 mm; rail length 495 mm; two long carriages; 10 mm end-hole offset; preload A - none; accuracy grade P - precision; top-mount rail fixing. Mounting: M3 screws at 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminium, on ground or finish-milled surfaces. Ambient limit 80 C, peaks 100 C. Re-grease at 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM; we confirm them per model.
LRM wins on envelope: a 12 mm rail with a slim carriage fits where a larger series cannot, and the two long blocks here spread load smoothly along 495 mm of travel. LSH wins whenever you need numbers to design with, because its catalogue lists dynamic, static and moment ratings per carriage while LRM publishes none and every value must be confirmed per model. For short, stiff, crossed-roller motion, LGC is the third option. Tell us the load, moment and duty cycle and we will point you at the right one.
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 LRM12L2X495S10AP
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.