Airtac LRM Miniature Linear Guide LRM12L2X160S5AH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X160S5AH 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 length160 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 LRM12L2X160S5AH
LRM12L2X160S5AH ships as a matched set: a 160mm stainless-steel rail, 12mm wide, with its first fixing hole 5mm from the rail end, and two long recirculating-ball carriages running on it. Since the LRM size code equals the rail width, the base only needs a 12mm seat.
No preload (A) makes this the freest-running version of the set - the carriages glide with the least drag, at the cost of some measurable play, often the right trade for a manual slide or a spring-biased axis where a force always loads one face. Accuracy grade H is the high grade for LRM. The balls are Japanese-made to ISO 3290 G10, a rating for the balls themselves; the double-lip seal scrubs oil back along the rail and the outer cover turns larger chips away from the seal strip. Ambient temperature must stay within 80 C, peaking briefly at 100 C. Dynamic, static and moment ratings are not published for LRM; request them per model through the RFQ and we confirm before dispatch.
Airtac LRM Miniature Linear Guide LRM12L2X160S5AH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X160S5AH |
|---|---|
| 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 | 160 mm |
| 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 LRM12L2X160S5AH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X160 | 2 carriages on a 160 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, 160 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 LRM12L2X160S5AH Is Used
Lab automation gantry
A microplate handler moving stacks between a hotel and a reader in a laboratory workstation; preload A keeps drag low for the light belt drive.
Vial indexing track
A miniature slide advancing single vials under a filling nozzle on a benchtop pharma line; two blocks steady the carrier across the 160mm stroke.
Enclosed sensor scanner
A scanner head traversing inside a 3D-printer enclosure: the double-lip seal and outer cover keep plastic dust out of the raceways, and the 80 C ambient ceiling sits comfortably away from the hotend.
Is the Airtac LRM Miniature Linear Guide LRM12L2X160S5AH the Right Guide?
Choose LRM for miniature, light-duty positioning; choose AirTAC LSH once the load or a cantilever gets serious, since LSH prints dynamic, static and moment ratings per carriage that LRM never states. When travel is short and crossed-roller rigidity matters more than ball smoothness, LGC is the alternative. One planning point: a 200mm-stroke axis cycling once per second covers the 100km re-grease interval in roughly three weeks of continuous running, so the distance binds before the calendar does - plan grease access accordingly. Checklist: complete set, 12mm rail width, long carriage, two carriages, 160mm rail, S5 hole offset, preload A for freest travel, high H accuracy, top-mount fixing, and a load rating confirmed with us first.
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 LRM12L2X160S5AH FAQ
Stainless rail 12mm wide and 160mm long, first hole offset 5mm, top-mounted; two long carriages, preload A (none), accuracy grade H. Torque the M3 screws to 196 N.cm in steel, 127 N.cm in cast iron or 98 N.cm in aluminium (M2 equivalents: 58.8, 39.2 and 29.4 N.cm). Carriages leave the factory with Kyodo Yushi PS No. 2 grease; service every 100km of travel or every 3 to 6 months. Ambient temperature: 80 C maximum, 100 C transient peaks. Load and moment ratings are not published for LRM; we confirm them per model when you enquire.
Yes - the set arrives with the 160mm rail and both long carriages assembled and pre-greased; nothing has to be bought separately. Handle it with care: the ball-retention design keeps the balls with the carriage, but tilting the carriage onto the rail or swapping it quickly can still drop balls, and on an inclined rail the carriage can slide off under its own weight, so hold it. Never dismantle a carriage or strike the rail - hidden damage costs accuracy - and mount on ground or finish-milled surfaces to achieve the rated travel accuracy.
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 LRM12L2X160S5AH
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.