Airtac LRM Miniature Linear Guide LRM12L2X445S10AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X445S10AHT 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 lengthLong 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 LRM12L2X445S10AHT
LRM12L2X445S10AHT is a complete LRM miniature linear guide configured for underside fixing: a 12 mm wide stainless-steel rail, 445 mm long, carrying two long (L) recirculating-ball carriages. The trailing T moves the mounting holes so the rail bolts up from below - the answer when the top face of your base plate must stay clear or the guide sits inside a closed frame. Preload is A (none) and accuracy is grade H.
Because the rail is reached from underneath, machine the mating surface to a ground or finish-milled finish so the rated travel accuracy is actually achieved, and keep in mind that either rail edge can serve as the datum. The carriages run on Japanese-made recirculating balls graded ISO 3290 G10, behind a double-lip seal and an outer cover that keeps debris off the seal strip. Handle with care: on an inclined rail a carriage can slide off under its own weight, and the ball-retention design helps but does not guarantee nothing drops. Ambient temperature ceiling is 80 C with transient peaks to 100 C. No load or moment ratings are published for LRM - send the RFQ and we confirm the figures for this part number.
Airtac LRM Miniature Linear Guide LRM12L2X445S10AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X445S10AHT |
|---|---|
| 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 | Long 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 LRM12L2X445S10AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long 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 LRM12L2X445S10AHT Is Used
Laser marking inside an enclosed cell
A marking-head slide built into a sealed enclosure, where fixing the rail from below keeps the optical bench top uninterrupted.
Door slide beside a curing oven
A lightweight inspection door track mounted next to (not inside) a curing oven, where the 80 C ambient ceiling becomes a real layout constraint to check first.
Tool-setting gauge on a compact CNC
An underside-fixed probe carrier for a small machine-tool setting station, keeping the top surface flush for swarf clearance.
Is the Airtac LRM Miniature Linear Guide LRM12L2X445S10AHT the Right Guide?
If the load is heavy or overhung, move to AirTAC LSH, which publishes per-carriage dynamic, static and moment ratings you can size against - something LRM deliberately does not. If the travel is short and you need crossed-roller rigidity instead, LGC is the cross-step. Checklist for this SKU: bottom-mount complete set, 12 mm rail width, long carriage, two blocks, 445 mm rail, preload A (none), accuracy H, underside fixing. One more lever worth knowing: stocked sets span roughly $66 to $831 across just two rail widths, so trimming rail length is usually cheaper than upsizing. Ask us with your RFQ and we confirm the load rating for this 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 LRM12L2X445S10AHT FAQ
Rail width 12 mm, rail length 445 mm, end-hole offset 10 mm, two long (L) carriages, preload A (none), accuracy grade H, and bottom-mount (underside) fixing. Screw torques: M2 at 58.8 N.cm steel, 39.2 N.cm cast iron, 29.4 N.cm aluminium; M3 at 196, 127 and 98 N.cm. Ambient temperature limit 80 C with brief peaks to 100 C. Re-grease every 100 km of travel or every 3 to 6 months, topping up through the rear lubrication hole. Basic dynamic and static load ratings and moment ratings are not published for the LRM series - we confirm them per model when you enquire.
Stay with LRM when the priority is a tight envelope, smooth light-duty motion and a 12 mm rail in a 445 mm length. Move to LSH when the load is substantial or cantilevered, because LSH gives you published per-carriage dynamic, static and moment ratings to calculate with, while LRM leaves those figures to be confirmed per model. If the travel is short and the demand is rigidity rather than reach, crossed-roller LGC is the third option. Describe the load case in your RFQ and we will recommend the right series.
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 LRM12L2X445S10AHT
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.