Airtac LRM Miniature Linear Guide LRM12L2X495S10APT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X495S10APT 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 LRM12L2X495S10APT
This code combines the two planning decisions that are easiest to get wrong late in a project: precision grade accuracy and bottom-mount fixing. LRM12L2X495S10APT is a complete set - one 12 mm wide stainless-steel rail, 495 mm long, with two long ball carriages whose fixing holes are in the rail base, so the screws are driven from underneath the deck.
Plan the install around the limits: ground or finish-milled mating surfaces, M3 screws at 196 N.cm into steel, and an ambient temperature that stays at or below 80 C (brief peaks to 100 C) - a real constraint next to a heater or a hot optical source. The carriages run on ISO 3290 G10 grade balls held by a retention design, with a double-lip seal and outer cover doing the sealing work. The 495 mm length sits just under half of the 1005 mm full catalogue rail for size 12; longer runs are covered by spliced rail sets, though those come in accuracy H only. Load and moment ratings are not published - we confirm them per model, so include the question in your RFQ.
Airtac LRM Miniature Linear Guide LRM12L2X495S10APT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X495S10APT |
|---|---|
| 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 (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 LRM12L2X495S10APT
| 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 LRM12L2X495S10APT Is Used
Confocal sample stage
A sample stage on a compact confocal microscope: precision travel plus bottom mounting keeps the optical benchtop surface free of protruding screw heads around the objective.
Small engraving gantry
A light-duty engraving and marking gantry for nameplates, where the low profile of a 12 mm rail and two long carriages hold the gantry plate square over the work area.
Vial handling line
A vial handling line on a small pharmaceutical pack-out bench carrying a lightweight pusher bar; the 80 C ambient limit needs checking near any hot-fill or sterilisation step.
Is the Airtac LRM Miniature Linear Guide LRM12L2X495S10APT the Right Guide?
Ordering a P-grade, bottom-mounted set says the design needs accurate travel AND a clean top surface - a mould cavity, an optical bed, a chamber lid. Make sure both are true, because relaxing either one can save cost. If the loads are heavy or overhung, size with LSH, whose per-carriage dynamic, static and moment ratings are published, unlike LRM's; if the travel is short and crossed-roller stiffness is the goal, look at LGC.
Confirm with us: complete set, 12 mm rail width, long carriages, two blocks, 495 mm rail length, preload A, accuracy P, bottom-mount direction, and the load rating for this exact code.
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 LRM12L2X495S10APT FAQ
Rail width 12 mm, rail length 495 mm, two long carriages, bottom-mount fixing, 10 mm end offset, preload A - none, accuracy grade P. Screw torque for M3: 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminium. Ambient temperature must not exceed 80 C, with transient peaks to 100 C. Lubrication: pre-filled with Kyodo Yushi PS No. 2, re-grease every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM - confirmed per model on request.
Yes - it is a complete set: the 495 mm rail and both long carriages ship together, assembled, so no pairing code applies. Not included: grease for topping up (Kyodo Yushi PS No. 2 when the interval arrives), M3 mounting screws, and a dummy rail - worth having if you will ever lift a carriage off, since even with ball retention an angled or hasty swap can drop balls. We stock carriage-only parts only rarely, so replacements are usually 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 LRM12L2X495S10APT
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.