Airtac LRM Miniature Linear Guide LRM12N2X445S10AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X445S10AHT 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 length445 mm
- AccuracyH — high 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 LRM12N2X445S10AHT
The AirTAC LRM12N2X445S10AHT is a complete miniature linear guide in bottom-mount form: a 12 mm wide stainless-steel rail, 445 mm long, carrying two standard recirculating-ball carriages, with the screw holes arranged so the rail bolts in from beneath. That earns its place where the top of the assembly is covered by a worktable or guard and no screwdriver can reach the rail face.
Handling is where miniature guides bite. With two carriages on an open rail, either block can slide off under its own weight when the rail is held at an angle, and the ball retainer helps but does not guarantee against dropped balls during a hurried swap - work carefully, and use a dummy rail for carriage changes. Preload grade A and accuracy grade H make this the free-running, high-grade option at 445 mm of travel; the design adds Japanese ISO 3290 G10 balls (that grade covers the balls only), a double-lip seal, an outer cover and the common LRM rail profile. For the best running accuracy, set the datum face on the same side for both carriages. Ambient stays at or below 80 C with peaks to 100 C. Load and moment ratings are not published for LRM, so we will confirm them for this exact part number when you enquire.
Airtac LRM Miniature Linear Guide LRM12N2X445S10AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X445S10AHT |
|---|---|
| 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 | 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 | 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 LRM12N2X445S10AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X445 | 2 carriages on a 445 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. |
| H | H — high grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 445 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 LRM12N2X445S10AHT Is Used
Tensioner carriage on a harness routing board
A small wire tensioner travelling along a cable-harness routing board, with the rail fixed from below so the board surface stays clear for the layout pegs.
Benchtop profile comparator slide
The workpiece-carrying slide of a benchtop profile comparator, where a bottom-fixed rail keeps the measuring surface unobstructed for the part.
Print-head slide on a small carton coder
The inkjet print-head traverse on a compact carton coder, where a 445 mm stroke spans the full print band across the box face.
Is the Airtac LRM Miniature Linear Guide LRM12N2X445S10AHT the Right Guide?
Compare series first: substantial or cantilevered loads belong on LSH, which publishes per-carriage dynamic, static and moment ratings for sizing - figures LRM does not offer - while short travels needing crossed-roller stiffness belong on LGC. Then check this build: complete set, 12 mm rail width, standard carriages, two of them, a 445 mm rail, preload A whose trade-off is minimal drag but no removal of internal play, accuracy H, bottom-mount installation with fixing access from below, and a load rating we confirm per model before you commit. Mind the lubrication calendar too: the 100 km re-grease interval arrives sooner than expected, since a 200 mm stroke cycling once per second covers 100 km in roughly three weeks of continuous running. Spare blocks need a pairing-letter match and are mostly special order.
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 LRM12N2X445S10AHT FAQ
Configuration: 12 mm rail width, 445 mm rail length, two standard carriages, preload A (none), accuracy H (high), bottom-mount rail, 10 mm end-hole offset. Fixing torque for M3 screws is 196 N.cm into steel, 127 N.cm into cast iron and 98 N.cm into aluminium; M2 screws take 58.8, 39.2 and 29.4 N.cm. Ambient temperature must not exceed 80 C, with transient peaks to 100 C, and re-greasing falls due every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM - we confirm them per model.
One complete set: the 445 mm stainless rail with both standard carriages seated on it, pre-filled with Kyodo Yushi PS No. 2 grease. Mounting screws, bolt caps and spare seals are not in the box. The mounting holes are in the rail for underside fixing, so plan access or counterbores in the mating plate, which should be ground or finish-milled to achieve the rated travel accuracy. A spare block alone would be a special order - carriage-only stock is just four SKUs - matched to the pairing letter of your rail.
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 LRM12N2X445S10AHT
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.