Airtac LRM Miniature Linear Guide LRM12N2X495S10BPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X495S10BPT 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 lengthStandard carriage
- Carriages2
- Rail length495 mm
- AccuracyP — precision grade
- PreloadB — light 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 LRM12N2X495S10BPT
LRM12N2X495S10BPT is the bottom-mount variant of AirTAC's 12 mm LRM miniature guide: the trailing T in the code means the rail is bolted down from underneath, leaving the running side of the assembly flush. You get one 495 mm stainless-steel rail with two standard-length ball carriages, B light preload and P precision accuracy - a complete set, ready to fit once the mounting plate is prepared.
Bottom mounting earns its keep where nothing may sit proud of the surface - a belt deck, a cleanroom table, a sliding cover that must pass over the guide. The trade-off is access: plan screw positions and counterbores before the plate is machined. Accuracy P precision pairs with light preload here to give tight tracking without high running drag. Inside each carriage, Japanese-made balls to ISO 3290 G10 - a grade covering the balls alone - are retained against fallout and wiped by a double-lip seal under a protective outer cover. Keep ambient temperature at or below 80 C, with peaks to 100 C. No load or moment rating is published for LRM; we will confirm the numbers for this model in reply to your RFQ.
Airtac LRM Miniature Linear Guide LRM12N2X495S10BPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X495S10BPT |
|---|---|
| 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 | Standard 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 | B — light 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 LRM12N2X495S10BPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X495 | 2 carriages on a 495 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| B | B — light 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 LRM12N2X495S10BPT Is Used
Under-belt vision carrier
Mounting a compact camera beneath a conveyor to read codes on the underside of packs, where the bottom-fixed rail keeps the belt surface unobstructed above.
Measuring microscope retrofit
Adding a motorized traverse to an older toolmaker's microscope, with the hidden underside fixings preserving the original top plate and its engravings.
Cleanroom drawer-stage slide
Guiding a shallow drawer stage inside a laboratory enclosure where no screw head may protrude above the deck into the laminar flow.
Is the Airtac LRM Miniature Linear Guide LRM12N2X495S10BPT the Right Guide?
If your load is substantial or overhung, move up to LSH, which publishes dynamic, static and moment ratings per carriage for proper sizing; LRM publishes none of these, so we confirm them for your specific model. For a short-travel axis needing crossed-roller rigidity, LGC is the closer match. Checking this SKU line by line: set form (not carriage only), 12 mm rail width, standard carriages, two of them, 495 mm rail, B light preload - smoother running but more deflection under load than grade C - P precision accuracy, bottom-mount fixing, 10 mm offset. Confirm the load rating with us before committing to the design.
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 LRM12N2X495S10BPT FAQ
12 mm stainless rail, 495 mm long, two standard carriages, B light preload, P precision accuracy, bottom-mount (T) fixing with 10 mm end-hole offset. Screws: M3 at 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminium; M2 at 58.8, 39.2 and 29.4 N.cm. Ambient temperature limit is 80 C, transients to 100 C. Lubrication: carriages are filled with Kyodo Yushi PS No. 2; top up through the carriage end port every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for the LRM series; we confirm them per model.
The trailing T fixes the rail from below, so the side carrying the carriages stays flush and clear of screw heads - useful under belts, cover plates or on surfaces that must remain flat and easy to wipe clean. The same carriages run on either mounting arrangement, so the choice is purely your machine's geometry. This particular set adds P precision accuracy on top of the light B preload for tight tracking. Whatever the mounting direction, load and moment figures are confirmed per model through the RFQ route, since AirTAC publishes none for LRM.
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 LRM12N2X495S10BPT
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.