Airtac LRM Miniature Linear Guide LRM12N1X445S10BHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X445S10BHT is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriage. 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
- Carriages1
- Rail length445 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 LRM12N1X445S10BHT
LRM12N1X445S10BHT is a complete set built for frames where the top surface must stay clear: the trailing T in the code specifies bottom-mount fixing, with the rail bolted through its base into a ground or finish-milled seat. You get a 12 mm wide, 445 mm long stainless-steel rail carrying one standard recirculating-ball carriage, preloaded to the light B grade and finished to accuracy grade H.
The ball-retention design keeps the Japanese-made ISO 3290 G10 balls (the grade covers the balls only, not the assembly) in the carriage during handling, but AirTAC still warns that an angled insert or a hasty swap can drop balls - a dummy rail makes fitting safer. A double-lip seal scrapes oil and excludes dust, while an outer cover hides the fixing screws and protects the seal strip. Keep ambient temperature at or under 80 C, tolerating only brief 100 C peaks. Four hundred and forty-five millimetres is one of 102 stocked rail lengths spanning 40-995 mm, so nothing here is a special build. Load and moment figures are confirmed per model - ask us with an RFQ.
Airtac LRM Miniature Linear Guide LRM12N1X445S10BHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X445S10BHT |
|---|---|
| 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 | 1 |
| Rail length | 445 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 LRM12N1X445S10BHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X445 | 1 carriage on a 445 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, 445 mm |
| Carriage | Yes, 1 |
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 LRM12N1X445S10BHT Is Used
Granite-plate metrology fixture
Bolted into a recessed seat in a granite surface plate, this bottom-mount set guides a small height-gauge carriage; the screws stay hidden beneath the plate surface so nothing snags a measuring probe.
Semiconductor tray indexer
A light tray of packaged ICs steps under a camera on this 445 mm rail; one standard carriage is enough for the tray shuttle, and the outer cover keeps dicing debris off the seal strip.
Vision camera rail in a tight housing
Machine-vision camera heads inside cramped inspection housings benefit from bottom-mount fixing - the guide bolts under the camera plate, leaving the optical path above completely unobstructed.
Is the Airtac LRM Miniature Linear Guide LRM12N1X445S10BHT the Right Guide?
Size the job honestly: if the mechanism carries a real load or a cantilever, choose LSH, whose catalogue lists per-carriage dynamic, static and moment ratings you can engineer against - LRM publishes none of these. If travel is short and you need crossed-roller stiffness, LGC fits better. Otherwise check this set against your drawing: complete set with one standard block, 12 mm rail width, 445 mm rail, light preload B (smooth but less rigid than C), accuracy H, bottom-mount fixing.
Because mounting surfaces must be ground or finish-milled to reach rated travel accuracy, and with a bottom-mount rail the seat itself becomes the precision surface, prepare that base carefully. Confirm the load rating with us before you commit the design - we verify it for the exact model.
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 LRM12N1X445S10BHT FAQ
Stainless-steel rail 12 mm wide and 445 mm long, one standard-length carriage, light preload B, accuracy H, bottom-mount fixing (the trailing T) and a 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: at or below 80 C, with peaks to 100 C. Maintenance: re-grease every 100 km of travel or every 3-6 months. Load and moment ratings are not published for LRM - we confirm the figure for this model on request.
You receive the complete set: the rail and one fitted carriage, pre-greased with Kyodo Yushi PS No. 2. Bottom-mount means the fixing screws pass through the base, so machine the seat ground or finish-milled and keep the top face free for the payload. Wipe the rust-preventive oil off and lubricate before first use, then stroke the carriage to spread an even film. Either side of the rail can serve as the datum face.
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 LRM12N1X445S10BHT
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.