Airtac LRM Miniature Linear Guide LRM12L1X145S10AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X145S10AHT 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 lengthLong carriage
- Carriages1
- Rail length145 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 LRM12L1X145S10AHT
The LRM12L1X145S10AHT is the bottom-mount version of this 12 mm miniature guide: a 145 mm stainless-steel rail carrying one long recirculating-ball carriage, delivered assembled and pre-greased as a working set. The trailing T in the code means the rail is fixed from below - the arrangement for a frame where the screws cannot be reached from above, or where a flush top face matters. The 10 mm end-hole offset spaces the fixing holes in from the rail ends.
Before fitting, grind or finish-mill the mating surface, because the rated travel accuracy assumes it. Ball retention keeps the ISO 3290 G10 Japanese-made balls captive during handling, but the maker is explicit that it is a handling aid, not a guarantee: insert the carriage square and slowly, or use a dummy rail, and balls can still drop. Ambient temperature is capped at 80 C with 100 C transients. Load and moment figures are not published for this series - we confirm them per model, so send the RFQ.
Airtac LRM Miniature Linear Guide LRM12L1X145S10AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X145S10AHT |
|---|---|
| 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 | 1 |
| Rail length | 145 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 LRM12L1X145S10AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X145 | 1 carriage on a 145 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, 145 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 LRM12L1X145S10AHT Is Used
PCB inspection camera gantry
An AOI camera gantry over a PCB line fixes this rail from below, so the face the camera bracket bolts to stays flush and free of screw heads in the optical path.
Belt-driven teach axis
A compact belt-driven teach axis on a small packaging machine uses the bottom-mount rail set inside an extruded channel, hiding the fixings from product and wash-down contact.
Autosampler needle arm
An HPLC autosampler moves its needle arm on this 12 mm guide; the long carriage lengthens the bearing span, which resists the tipping moment of the arm overhanging the rail.
Is the Airtac LRM Miniature Linear Guide LRM12L1X145S10AHT the Right Guide?
Two decisions come before price on this SKU. First, mounting direction: the T suffix fixes the rail from below, for machines where the top face is the working surface or protruding screws would foul the travel. Second, form: this is a complete set - rail plus one long carriage on a 12 mm, 145 mm track, no preload (grade A), accuracy H. If the load is significant or cantilevered, choose LSH instead, since LSH publishes per-carriage dynamic, static and moment ratings and LRM does not. For very short travel needing crossed-roller stiffness, look across at LGC. Then run the rest of the checklist - carriage length, count, preload grade, accuracy, mounting direction - and confirm the load rating with us before ordering.
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 LRM12L1X145S10AHT FAQ
A 12 mm wide rail, 145 mm long, one long carriage, preload grade A (none), accuracy grade H, bottom-mount fixing, 10 mm end-hole offset. Drive M2 screws at 58.8 N.cm into steel, 39.2 into cast iron or 29.4 into aluminium; M3 screws take 196, 127 and 98 N.cm respectively. The carriage arrives greased with Kyodo Yushi PS No. 2 - top up every 100 km of travel or every 3 to 6 months, never mixing lubricant types. Keep ambient temperature under 80 C (100 C transient). Load and moment ratings are not published for LRM; we confirm them for this model via the RFQ.
It is a complete set: the 145 mm stainless rail and the long carriage arrive together, assembled and pre-greased, so nothing else is needed to run it. That is different from AirTAC's BK carriage-only codes, which contain no rail at all and carry a pairing letter that must match the rail. Carriage-only spares are thin on the ground - only a handful of such SKUs are listed - so if field carriage swaps are likely, order a spare set or a correctly paired carriage well in advance.
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 LRM12L1X145S10AHT
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.