Airtac LRM Miniature Linear Guide LRM12N2X120S10BHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X120S10BHT 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 length120 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 LRM12N2X120S10BHT
LRM12N2X120S10BHT is a complete AirTAC LRM miniature linear guide set in size 12. The box holds one stainless-steel rail, 120 mm long with a 12 mm profile and a 10 mm end-hole offset, and two standard-length carriages already fitted to it. The trailing T in the code marks a bottom-mount rail: the rail bolts down from underneath, which suits a machine deck where you cannot reach the screw heads from above.
Light preload (code B) takes up the clearance between balls and raceways for repeatable motion while keeping running friction low, and accuracy grade H is the high class of the two LRM offers. Inside each carriage, Japanese-made balls graded ISO 3290 G10 - a grade for the balls alone, not for the assembled guide - are held by a ball-retention design, sealed by a double lip and shielded by an outer cover over the screws. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C. Load and moment ratings are not published for LRM; we confirm the figures for this exact model before you order - just send the RFQ.
Airtac LRM Miniature Linear Guide LRM12N2X120S10BHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X120S10BHT |
|---|---|
| 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 | 120 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 LRM12N2X120S10BHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X120 | 2 carriages on a 120 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, 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 LRM12N2X120S10BHT Is Used
Under-deck vision inspection stage
A benchtop camera inspection station where the top plate must stay completely clear - the bottom-mount rail bolts on from below, so no screw heads stand proud of the datum surface under the optics.
Compact dispensing gantry retrofit
Servicing a small glue or solder-paste dispenser whose original slide is worn: the set form lets the whole 120 mm axis be replaced in one operation without disturbing the covered deck above.
Microplate sampler slide
Laboratory automation that carries a sampling head across a microplate tray - a light, precise duty where the 12 mm rail width fits a cramped instrument chassis.
Is the Airtac LRM Miniature Linear Guide LRM12N2X120S10BHT the Right Guide?
If the load is substantial or overhung, step up to AirTAC LSH: it publishes per-carriage dynamic, static and moment ratings you can size against, which LRM does not. Where travel is short and crossed-roller rigidity matters more than stroke, LGC is the cross-over choice. Size 12 is also the heart of the LRM range - 924 of the 988 sets listed are LRM12 - so sourcing this width is the most straightforward path in the series. Before ordering, check the form (complete set with rail), the 12 mm rail width, standard carriage length, two carriages, the 120 mm rail, light preload B against the trade-off that any preload adds friction, accuracy H, bottom-mount fixing to match your deck, and confirm the load rating with us 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 LRM12N2X120S10BHT FAQ
It is a complete set: one bottom-mount stainless rail, 12 mm wide and 120 mm long with a 10 mm end-hole offset, carrying two standard-length carriages, light preload B and high accuracy H. Fastening uses M3 screws torqued to 196 N.cm in steel, 127 N.cm in cast iron or 98 N.cm in aluminium. Ambient temperature must stay at or below 80 C, peaking briefly at 100 C, and re-greasing is due every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM; we confirm them for this model on request.
Yes. This SKU is a complete set, so the 120 mm stainless rail and both standard carriages arrive assembled and pre-filled with Kyodo Yushi PS No.2 grease. Nothing pneumatic is involved - this is a plain mechanical slide. Spare carriages on their own use a different code shape (LRM12BK-...) matched by a pairing letter, and only a handful of carriage-only parts are listed, so plan any field swap with us early.
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 LRM12N2X120S10BHT
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.