Airtac LRM Miniature Linear Guide LRM12L2X370S10AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X370S10AHT 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 length370 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 LRM12L2X370S10AHT
The LRM12L2X370S10AHT is a complete AirTAC LRM miniature linear guide set: one stainless-steel rail 12 mm wide and 370 mm long, carrying two long recirculating-ball carriages. The trailing T in the code means the rail is drilled for bottom-mounting, so the fixing screws pass through the rail into the machine base from underneath, leaving the top face unobstructed. Rail end holes sit 10 mm from each end.
Two long carriages on one rail give a wide bearing span that resists tipping along the travel, and underside fixing suits welded or covered frames where you cannot reach the rail top with a screwdriver. Each carriage runs on Japanese-made ISO 3290 G10 balls (the grade applies to the balls only), holds them with a retention design that limits spills during handling, and seals with a double lip beneath an outer cover that keeps chips off the seal strip. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C - a real constraint near heaters or hot housings. Where a load figure would normally sit, note that LRM ratings are not published; we confirm the numbers for this exact model when you send the RFQ.
Airtac LRM Miniature Linear Guide LRM12L2X370S10AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X370S10AHT |
|---|---|
| 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 | 370 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 LRM12L2X370S10AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X370 | 2 carriages on a 370 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, 370 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 LRM12L2X370S10AHT Is Used
PCB inspection XY stage
A twin-carriage bottom-mount rail keeps the deck of a small circuit-board inspection stage flat and clean on top, with all fixing screws hidden below the plate.
Laboratory positioning slide
A 370 mm slide carries sample trays between microscope and test stations in a compact lab bench, moving smoothly with no preload drag.
Compact pick-and-place gantry
Two long carriages share one 12 mm rail to support a small vacuum head, with the wide span damping the nodding motion of head reversal.
Is the Airtac LRM Miniature Linear Guide LRM12L2X370S10AHT the Right Guide?
If substantial or cantilevered loads are expected, step up to AirTAC LSH: that series publishes per-carriage dynamic, static and moment ratings you can size against, which LRM does not provide. For short travel where crossed-roller rigidity matters more than stroke, LGC is the better match. Before committing, work the checklist: complete set (not a spare carriage), 12 mm rail width, long carriage, two blocks, 370 mm rail, preload A (freer sliding, less rigid feel), H accuracy, bottom-mount direction - and ask us to confirm the load and moment ratings for this exact configuration.
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 LRM12L2X370S10AHT FAQ
This set has a 12 mm wide stainless-steel rail, 370 mm long, with end holes 10 mm from the rail ends, two long carriages, no preload (code A), H high accuracy and bottom-mount rail fixing. M2 screws torque to 58.8 N.cm into steel, 39.2 into cast iron and 29.4 into aluminium; M3 screws to 196, 127 and 98 N.cm respectively. Ambient temperature must not exceed 80 C, with transient peaks to 100 C. Re-grease every 100 km of travel or every 3 to 6 months, whichever comes first. Load and moment ratings are not published for LRM - we confirm them for this model via the RFQ.
No. The box holds the 370 mm rail and the two long carriages only - no mounting screws, no lubricant gun, no end stops. The carriages arrive pre-filled with grease, but wipe off the rust-preventive oil and lubricate before first use. Handle the assembly level: on an inclined rail a carriage can slide off under its own weight, and fitting it at an angle can still drop balls despite the retention design.
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 LRM12L2X370S10AHT
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.