Airtac LRM Miniature Linear Guide LRM12L1X370S10AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X370S10AHT 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 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 LRM12L1X370S10AHT
LRM12L1X370S10AHT is a complete miniature guide: one 12 mm stainless-steel rail, 370 mm long, with a single long carriage factory-fitted and pre-filled with Kyodo Yushi PS No. 2. The trailing T specifies a bottom-mount rail, so cap screws are driven from below the rail - the right arrangement when the top of the rail sits under a worktable, cover strip or guard and you cannot reach the heads from above. Preload is A (none) and accuracy grade is H.
A long carriage is a sensible call on a single-carriage rail of this length: it lengthens the bearing span and spreads the load over more balls, which steadies any tipping component riding at the end of the stroke, and long carriages are listed across the LRM range almost as widely as standard ones (512 against 475), so choosing L costs nothing in availability. The design includes the shared LRM rail profile, ball retention, double-lip seals, an outer cover over the screws and balls graded ISO 3290 G10 - a grade for the balls only. Ambient temperature must not exceed 80 C, with peaks no higher than 100 C. No load or moment rating is published for LRM; we confirm the figure for this model on request.
Airtac LRM Miniature Linear Guide LRM12L1X370S10AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X370S10AHT |
|---|---|
| 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 | 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 LRM12L1X370S10AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X370 | 1 carriage 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, 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 LRM12L1X370S10AHT Is Used
Electronics dispensing head
A glue or conformal-coating needle rides the long carriage on a 370 mm pass across a PCB panel; bottom-mount fixings keep the rail top flush beneath the needle shroud.
Semiconductor back-end inspection
Inspecting leadframes and small packages on a benchline uses this rail under a camera bridge; grade H travel and the double-lip seal suit a clean, dry cell.
Slide beneath a machine guard
Where a guard or belt covers the rail, bottom-mount holes let the guide be bolted down from below while the outer cover shields the seal strip from larger debris.
Is the Airtac LRM Miniature Linear Guide LRM12L1X370S10AHT the Right Guide?
Pick the series by duty. LRM at 12 mm rail width sits at the light-duty precision end of the range; when loads grow or hang off a cantilever, move up to AirTAC LSH, which publishes per-carriage dynamic, static and moment ratings you can design against, while LRM confirms ratings only per model through us. Where travel is short and crossed-roller rigidity is the priority, LGC is the alternative. This SKU matches on: set form; 12 mm rail; long carriage; one carriage; 370 mm rail length; preload A with no built-in play removal; accuracy H; bottom-mount direction; and, for spare carriages, a pairing letter that must equal the rail's. Confirm the load rating with us before finalising the design - it takes one enquiry.
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 LRM12L1X370S10AHT FAQ
Rail width 12 mm; rail length 370 mm; one long carriage; preload A (none); accuracy grade H; bottom-mount rail with a 10 mm end offset. Fixing torque is 58.8 N.cm for M2 screws and 196 N.cm for M3 screws into steel, less into cast iron and other softer materials. The ambient limit is 80 C with transient peaks to 100 C, and re-greasing falls due every 100 km of travel or every 3 to 6 months; top-up quantities run from 0.02/0.01 to 1.0/0.50 cm3 depending on the model. Load, moment and running-parallelism ratings are not published for LRM - we confirm them per model on enquiry.
A complete set: the 370 mm stainless rail and one long carriage already running on it, greased with Kyodo Yushi PS No. 2. There is no second carriage, no rail-only piece and no mounting screws in the delivery. If you later want a spare carriage on its own, remember that carriage-only LRM codes are thin on the ground and the pairing letter must match the rail, so order spares deliberately rather than expecting an off-the-shelf swap.
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 LRM12L1X370S10AHT
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.