Airtac LRM Miniature Linear Guide LRM12N2X395S10APT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X395S10APT 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 lengthStandard carriage
- Carriages2
- Rail length395 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 LRM12N2X395S10APT
LRM12N2X395S10APT combines the two options a measurement machine usually wants: accuracy grade P on a bottom-mount rail. In the box is a single 395 mm stainless-steel rail, 12 mm wide, with two standard-length recirculating-ball carriages pre-filled with Kyodo Yushi PS No. 2, tapped for screws that enter from below the rail.
Rail length, not rail width, is what moves the price in this range - stocked LRM sets run from about $66 to $831 across only two rail widths - so a 395 mm rail is a deliberate mid-length spend, and size 12 is the best-stocked size by far, with over 900 of the roughly 988 stocked sets. The carriages share one common rail profile, so a like-for-like replacement carriage fits this rail; the balls are ISO 3290 G10 grade, Japanese made, tied to the balls alone. Do not exceed 80 C ambient, and watch transient peaks at 100 C. Load and moment ratings are not published for the series - we confirm them for this exact set via the RFQ.
Airtac LRM Miniature Linear Guide LRM12N2X395S10APT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X395S10APT |
|---|---|
| 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 | Standard carriage |
| Carriages supplied | 2 |
| Rail length | 395 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 LRM12N2X395S10APT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X395 | 2 carriages 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. |
| P | P — precision grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 395 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 LRM12N2X395S10APT Is Used
Granite-bed comparator slide
A comparator slide mounted beneath a machined plate on a granite surface-plate assembly, where bottom-mount holes let the rail hang with no fasteners showing on the working face.
Chip-tray indexing shuttle
A short-travel shuttle indexing JEDEC chip trays past a camera in a semiconductor back-end line, running precision grade P for consistent indexing position at each stop.
Focus axis in a digital slide scanner
The motorized focus axis of a digital slide scanner, where a light optical head must settle on each field; accuracy P and a low-friction ball circuit help the servo hold position.
Is the Airtac LRM Miniature Linear Guide LRM12N2X395S10APT the Right Guide?
In this range the price is driven far more by rail length than by rail width, so trimming travel is the first cost lever, and 395 mm already sits mid-way along the stocked span of 40 to 995 mm. Availability is strongest in size 12: most of the roughly 988 stocked sets are LRM12, so this configuration is normally on the shelf rather than on order. If sizing points beyond light duty, step up to LSH for its published dynamic, static and moment ratings per carriage; for short travel needing crossed-roller stiffness, look at LGC.
Confirm before ordering: set form, 12 mm rail width, standard carriage length, two carriages, 395 mm rail length, preload A (none), accuracy P, bottom-mount direction, and a per-model load and moment rating from us by RFQ.
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 LRM12N2X395S10APT FAQ
Confirm the configuration: 12 mm rail width, 395 mm rail length, two standard-length carriages, preload A (none), precision accuracy P, and bottom-mount holes that need a machined tapped pattern on the underside of your seat. Fit with M2 screws at 58.8 N.cm into steel (39.2 cast iron, 29.4 aluminium) or M3 screws at 196 N.cm into steel (127 cast iron, 98 aluminium). The ambient temperature limit is 80 C, with transient peaks to 100 C. Re-grease every 100 km of travel or every 3 to 6 months. Basic dynamic, static and moment ratings are not published for LRM, so we will confirm the figures for this model - route that through the RFQ.
Pick this LRM12 set when the envelope is small and the duty is light: it gives a 12 mm rail, 395 mm long, two standard carriages and precision grade P in the smallest footprint of AirTAC's guide range. Move to LSH when the load is substantial or cantilevered, because LSH publishes dynamic, static and moment ratings per carriage that you can design against, while LRM publishes none and we confirm each model individually. If the travel is short and stiffness matters more than reach, an LGC crossed-roller guide is the cross-over to compare. Send the RFQ either way and we will confirm the right model and its rating.
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 LRM12N2X395S10APT
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.