Airtac LRM Miniature Linear Guide LRM12L2X445S10APT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X445S10APT 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
- AccuracyP — precision 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 LRM12L2X445S10APT
Read the trailing T and you know where the screws live: the LRM12L2X445S10APT is the bottom-mount version of the 445 mm, 12 mm wide LRM12 set with two long carriages. Fixing screws are driven from beneath, so the face presented upward stays clear - useful when a cover, worktable or product passes over the guide. Accuracy grade P and preload A (none) complete the configuration, and both carriages ship on the rail pre-greased with Kyodo Yushi PS No. 2.
Two long carriages on one rail do more than share the load: spaced apart, they resist tipping along the direction of travel, which matters on any axis whose centre of gravity sits above the carriage. Handle the assembly with care - the ball-retention design limits but does not remove the chance of balls escaping if a carriage is tilted onto a rail or swapped in haste, and on an inclined rail a carriage can slide away under its own weight. Ambient temperature is capped at 80 C, peaking to 100 C briefly. Load and moment ratings for LRM are not published by the manufacturer; send an RFQ and we will confirm them for this exact configuration.
Airtac LRM Miniature Linear Guide LRM12L2X445S10APT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X445S10APT |
|---|---|
| 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 | P — precision 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 LRM12L2X445S10APT
| 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. |
| P | P — precision 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 LRM12L2X445S10APT Is Used
Electronics test line camera rail
An inline AOI scanner travels back and forth over the guide constantly, so a bottom-mount rail with nothing protruding above the top face keeps the moving head clear and the surface easy to wipe clean.
IC handler pick-up slide
Inside a compact integrated-circuit handler, mounting the 12 mm rail from underneath leaves the upper surface flush for the pick-up head linkage and stops debris gathering on fasteners.
Retrofit axis in a dispensing machine
Lengthening the stroke of an existing fluid-dispensing machine is simpler when the guide bolts up from below through existing table holes and needs no fresh drilling in the top face.
Is the Airtac LRM Miniature Linear Guide LRM12L2X445S10APT the Right Guide?
If the duty is heavier than light positioning, or the load hangs out on an arm, move up to LSH, whose catalogue lists per-carriage dynamic, static and moment ratings that LRM simply does not publish. If the stroke is short and stiffness matters more than travel, LGC with its crossed rollers is the alternative. Order against this checklist: complete set, 12 mm rail width, long carriage, two blocks, 445 mm rail, preload A with the note that zero preload is the most forgiving of seat finish, precision accuracy, bottom-mount direction, and the matching pairing code if this replaces a single part. Ask us to confirm the load rating for this model before the design is frozen.
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 LRM12L2X445S10APT FAQ
Rail width 12 mm, rail length 445 mm, 10 mm end-hole offset, two long carriages, preload A (none), accuracy P (precision), bottom-mount fixing. Tighten M3 screws to 196 N.cm in steel, 127 N.cm in cast iron and 98 N.cm in aluminium; keep ambient temperature under 80 C with brief peaks to 100 C; re-grease after every 100 km of travel or every 3 to 6 months. Dynamic, static and moment load ratings are not published for LRM - we confirm the figures for this exact model against your application.
When the load or any overhang outgrows light duty. LSH is a larger series with published dynamic, static and moment ratings per carriage, so you can run the sizing arithmetic yourself; LRM offers no such table, so capacity must be checked model by model - send us the duty and we will confirm. For short strokes where crossed-roller rigidity matters more than travel, LGC is the other series to look at.
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 LRM12L2X445S10APT
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.