Airtac LRM Miniature Linear Guide LRM12L1X395S10AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X395S10AHT 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 length395 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 LRM12L1X395S10AHT
The LRM12L1X395S10AHT is a complete miniature linear guide set: one 395 mm stainless-steel rail, 12 mm wide, carrying a single long recirculating-ball carriage, shipped assembled and pre-greased. The trailing T in the code makes this a bottom-mount rail, so the fixing screws are reached from below and the top face of the rail stays clear for a shroud, wiper or moving cover.
The long carriage spans more balls than the standard block, which lengthens the bearing span and helps any tipping component ride steadier along the 395 mm of travel. The balls are Japanese-made ISO 3290 G10 grade - a ball grade only, not a standard for the assembly - held by a ball-retainer that reduces, without eliminating, dropped balls during angled fitting, behind a double-lip seal and an outer cover. Ambient temperature must stay at or below 80 C, with transient peaks no higher than 100 C. Load and moment ratings are not published for LRM; describe your arrangement on the RFQ and we confirm the figure for this exact model before you commit.
Airtac LRM Miniature Linear Guide LRM12L1X395S10AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X395S10AHT |
|---|---|
| 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 | 395 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 LRM12L1X395S10AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X395 | 1 carriage on a 395 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, 395 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 LRM12L1X395S10AHT Is Used
AOI camera slide
A benchtop automated optical inspection unit for PCB assemblies runs its camera head on this bottom-mounted rail, keeping the rail's top face clear beneath a moving shroud.
Laser alignment carriage
In a small laser marking cell, the long carriage carries a beam-folding mirror assembly across the working window without tipping on the offset optics.
Connector test fixture
An electronics test bench uses the 395 mm axis to index a nest of USB-C connectors under a probe head, one station at a time.
Is the Airtac LRM Miniature Linear Guide LRM12L1X395S10AHT the Right Guide?
Size up to LSH when the load is substantial or overhung: LSH publishes per-carriage dynamic, static and moment ratings you can plug straight into a calculation, which LRM deliberately does not. If the travel is short and stiffness matters more than stroke, LGC crossed-roller guides are the stiffer cross-check worth pricing. Before ordering, tick the checklist: set or carriage only, 12 mm rail width, long carriage, 1 carriage, 395 mm rail, preload A (none - freest running and most forgiving of surface finish), accuracy H, bottom-mount direction, and confirm the load rating with us. The mounting surface must be ground or finish-milled for the travel accuracy to hold.
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 LRM12L1X395S10AHT FAQ
Rail width 12 mm; rail length 395 mm; one long carriage; preload A (none); accuracy H (high); bottom-mount rail; stainless-steel rail. Screw torque: M3 screws take 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminium (M2 screws: 58.8, 39.2 and 29.4 N.cm in the same order). Ambient temperature must not exceed 80 C, with peaks to 100 C. Re-grease with Kyodo Yushi PS No. 2 every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM; we confirm them per model - ask on the RFQ.
You receive the complete set: one 395 mm stainless rail with the long carriage already fitted and pre-greased with Kyodo Yushi PS No. 2. No pairing code applies to a set. If you later need a spare carriage on its own, note that carriage-only LRM SKUs are scarce in our stock (four SKUs, all pairing code C) and most replacements are a special order - a dummy rail helps fit it without dropping balls.
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 LRM12L1X395S10AHT
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.