Airtac LRM Miniature Linear Guide LRM12N2X470S10BHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X470S10BHT 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 length470 mm
- AccuracyH — high 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 LRM12N2X470S10BHT
Here the LRM platform is configured for a build that is bolted together from below: the trailing T makes this a bottom-mount rail, 470 mm long and 12 mm wide, with a pair of standard carriages that can be positioned anywhere along it. Because the fixings enter through the rail base, the visible top face stays clean - useful on slides that sit inside a channel or under a cover. Both carriages arrive on the rail, greased with Kyodo Yushi PS No. 2.
Preload grade B sits between the free-running A and the firm C: light compression in the ball circuit takes up clearance without the drag penalty of the medium grade, a sensible middle setting for a high-accuracy H guide on a light mechanism. The balls are ISO 3290 G10 grade - that rating describes the balls alone - retained by the carriage ball-retainer design so they stay put during normal handling, and sealed by a double-lip seal under an outer cover. Note the manufacturer caution: angled insertion or a hasty carriage swap can still drop balls, so keep a dummy rail handy if you plan field swaps. Ambient temperature stays below 80 C with peaks to 100 C. No load or moment rating is published for LRM, so we confirm it for this configuration on request.
Airtac LRM Miniature Linear Guide LRM12N2X470S10BHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X470S10BHT |
|---|---|
| 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 | 470 mm (spliced sections) |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high 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 LRM12N2X470S10BHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X470 | 2 carriages on a 470 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. |
| H | H — high grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 470 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 LRM12N2X470S10BHT Is Used
Autosampler probe transport
On a benchtop analyzer, a carriage carries the sampling arm between vial trays; the bottom-fixed rail keeps the top surface clear for the fluidics mounted above it.
Camera focus slide
A machine-vision camera rides a short focus axis; light B preload lets a small stepper drive it briskly while the H accuracy grade keeps the lens square to the part.
Micro-dispensing head
A precision syringe head moves across a substrate on a slim slide where screws must come up from underneath; the outer cover shields the seal from adhesive mist.
Is the Airtac LRM Miniature Linear Guide LRM12N2X470S10BHT the Right Guide?
Think about who services this axis, not just who builds it. Carriage replacement on LRM needs a code whose pairing letter matches the rail, and carriage-only parts are listed only thinly, so if the machine will be serviced in the field, order any spare carriages alongside the set. On sizing: B preload is a fair compromise, but if the fixture will not sit on a ground or finish-milled face, the freer A grade is kinder, and if you need the firmest circuit, C is there. For loads that are heavy or overhung, leave the miniature class entirely - LSH publishes dynamic, static and moment ratings per carriage that let you do the arithmetic, which LRM does not - and for short travels needing crossed-roller stiffness, look at LGC. Run through the checklist with us: this is a complete set; 12 mm rail width; standard carriage; two carriages; 470 mm rail length; B preload; H accuracy; bottom-mount; and confirm the load rating for this specific model with 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 LRM12N2X470S10BHT FAQ
The set comprises a 470 mm rail, 12 mm wide, carrying two standard carriages; preload grade B (light), accuracy grade H (high), rail fixed from below. 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. Operating ambient: maximum 80 C, brief excursions to 100 C. Lubrication: pre-filled with Kyodo Yushi PS No. 2, topped up through the rear lubrication hole every 100 km or every 3-6 months. AirTAC states no load or moment ratings for LRM - ask us and we will confirm the figures for this model.
Only the two fitted carriages are part of this code - it is a complete set, not a source of spares. LRM carriages sold alone use codes such as LRM12BK with a pairing letter from A to E, and a spare must share the pairing letter of your rail to run correctly, so read it off the original part. Ball retention helps but is not a licence for rough handling: inserting a carriage at an angle or swapping it quickly can still drop balls, so a dummy rail is the safe way to do a swap. Because only a few carriage-only SKUs are listed, most spares are placed as a special order with us.
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 LRM12N2X470S10BHT
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.