Airtac LRM Miniature Linear Guide LRM12N1X100S12.5AH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X100S12.5AH 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 lengthStandard carriage
- Carriages1
- Rail length100 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 LRM12N1X100S12.5AH
LRM12N1X100S12.5AH is a complete AirTAC LRM miniature linear guide set: one 12 mm wide stainless-steel rail, 100 mm long, carrying a single standard-length recirculating-ball carriage. It ships pre-assembled and pre-greased with Kyodo Yushi PS No. 2, ready to bolt down from above. The 12.5 mm end-hole offset positions the first mounting holes for a compact footprint on a short axis.
The LRM platform shares one rail profile across its carriage types, retains the balls during handling, and runs on Japanese-made ISO 3290 G10 balls - a grade that applies to the balls themselves, not to the guide assembly or its accuracy. A double-lip seal scrapes oil and excludes dust, and an outer cover shields the seal strip and screw heads from larger debris. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C - a real constraint next to a heater or a lamp. Load and moment ratings are not published for LRM; we confirm them for this exact model when you send the RFQ.
Airtac LRM Miniature Linear Guide LRM12N1X100S12.5AH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X100S12.5AH |
|---|---|
| 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 | 1 |
| Rail length | 100 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 LRM12N1X100S12.5AH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X100 | 1 carriage on a 100 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, 100 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 LRM12N1X100S12.5AH Is Used
Compact XY micro-stage
A miniature XY stage on an optics bench, where a 100 mm travel axis on a 12 mm rail keeps the stage deck thin and the envelope tight.
Lab microplate handler
A laboratory automation head that lifts microplates between deck positions - light, smooth strokes where the ball-retention design simplifies carriage handling.
Laser diode test fixture
An inspection nest that positions laser diode packages under a camera one short axis at a time, at ambient temperatures well under the 80 C limit.
Is the Airtac LRM Miniature Linear Guide LRM12N1X100S12.5AH the Right Guide?
This 100 mm rail suits tight envelopes and short strokes where every millimetre of mounting space counts. Because stocked sets span roughly $66 to $831 across just two rail widths, it is rail length and carriage count - not size - that drives cost, so trimming travel before stepping up in size usually pays off. If your load is substantial or cantilevered, step up to AirTAC LSH, which publishes per-carriage dynamic, static and moment ratings you can actually size against; for short travel needing crossed-roller rigidity, look across to LGC instead.
Before ordering, check the form (complete set), rail width (12 mm), carriage length (standard), count (1), preload (A - none, the free-running choice that is also the easiest to install), accuracy grade (H - high), mounting direction (top-mount) - and confirm the load rating with us before you commit.
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 LRM12N1X100S12.5AH FAQ
A complete set: one 12 mm wide stainless-steel rail, 100 mm long, with one standard-length carriage, preload A (none), accuracy grade H (high) and top-mount rail fixing - there is no trailing T in the code. Screw torques: M2 - 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium; M3 - 196, 127 and 98 N.cm respectively. Keep ambient temperature at or below 80 C (transient peaks to 100 C) and re-grease 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 before you order.
Both are AirTAC linear guides, but LSH is the larger series with published dynamic, static and moment ratings per carriage - numbers you can plug straight into a sizing calculation. LRM publishes none of these, so its capacity is confirmed per model through us. Pick LRM12N1X100S12.5AH when the priority is a 12 mm rail, a 100 mm stroke and smooth light-duty motion; pick LSH when the load or a cantilever demands a datasheet figure. Send the RFQ and we will confirm the right route.
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 LRM12N1X100S12.5AH
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.