Airtac LRM Miniature Linear Guide LRM12L1X320S10APT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X320S10APT 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 length320 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 LRM12L1X320S10APT
This AirTAC LRM12L1X320S10APT is a complete miniature linear guide set: a 12 mm wide stainless-steel rail, 320 mm long, carrying a single long recirculating-ball carriage. The carriage arrives on the rail, pre-filled with Kyodo Yushi PS No. 2 grease, so the set bolts straight into your layout. Accuracy is grade P (precision) and preload is grade A, meaning none, so the carriage runs with the least drag this size offers. Fixing is bottom-mount: the screw holes sit in the underside of the rail, leaving the running surface and its sides clear of fastener heads.
Like every LRM carriage, this one shares the common LRM rail profile, holds its ISO 3290 G10 Japanese-made balls under a ball-retention design, and seals the raceway with a double-lip seal plus an outer cover over the screw line. Ball retention is a handling aid, not a guarantee: tilt the carriage onto the rail or swap it hastily and balls can still escape, so work carefully or use a dummy rail. Ambient temperature must stay at or below 80 C, with peaks no higher than 100 C. Load and moment ratings are not published for LRM; ask us and we will confirm the figures for this exact model before you order.
Airtac LRM Miniature Linear Guide LRM12L1X320S10APT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X320S10APT |
|---|---|
| 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 | 320 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 LRM12L1X320S10APT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X320 | 1 carriage on a 320 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, 320 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 LRM12L1X320S10APT Is Used
Optical metrology fixture
A bottom-mount rail keeps fastener heads off the top face, so a lens or camera carriage can travel the full 320 mm without fouling the workpiece on a benchtop measuring station.
Semiconductor test handler axis
Precision grade P and a non-preloaded, free-running carriage suit the gentle, repeatable short lifts inside a chip-tray handling module.
Compact XY inspection stage
Two of these sets crossed at right angles give a small machine-vision system a 320 mm travel envelope without the bulk of a full-size guide.
Is the Airtac LRM Miniature Linear Guide LRM12L1X320S10APT the Right Guide?
Zero preload makes this the smoothest-running configuration in our stocked LRM12 range, but it also leaves any system play in the guide itself; if the layout needs stiffness against a tipping component, light preload grade B is the closer match. When the load is substantial or cantilevered, step up to the AirTAC LSH series instead, because LSH publishes per-carriage dynamic, static and moment ratings you can size against, which LRM does not. For short travel where crossed-roller rigidity matters, step across to LGC.
Before committing, check the full match: complete set form, 12 mm rail width, long carriage, one block, 320 mm rail length, preload A, accuracy P, bottom-mount direction, and a load rating confirmed with us through the RFQ rather than assumed.
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 LRM12L1X320S10APT FAQ
The code reads as: size 12, which is a 12 mm rail width; L, a long carriage; 1, a single carriage; X320, a 320 mm rail length; S10, end mounting holes offset 10 mm from the rail end; A, preload grade none; P, precision accuracy; and the trailing T, bottom-mount fixing. Correct screw torques are 196 N.cm for M3 and 58.8 N.cm for M2 into steel, 127 and 39.2 N.cm into cast iron, 98 and 29.4 N.cm into aluminium. Ambient limit is 80 C with peaks to 100 C, and re-greasing is due every 100 km of travel or every 3 to 6 months. Basic dynamic load, static load and moment ratings are not published for LRM; we confirm the figures per model when you send the RFQ.
You receive the 320 mm stainless rail with the long carriage already fitted, greased and protected by the ball-retention design. Screws, hole machining and brackets are yours to supply; the seating surface should be ground or finish-milled to reach the rated travel accuracy, and the five catalogue surface rows (Q1 2 to 5 mm, Q2 1.2 to 3.2 mm, H1 1.5 to 3.5 mm, R max 0.2 to 0.5 mm) apply per size. Wipe off the rust-preventive oil and apply lubricant before first use. This is a stocked LRM12 configuration, so it ships from inventory rather than as a special order.
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 LRM12L1X320S10APT
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.