Airtac LRM Miniature Linear Guide LRM12L1X245S10AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X245S10AHT 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 length245 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 LRM12L1X245S10AHT
The LRM12L1X245S10AHT is a complete LRM miniature linear guide set: one 245 mm stainless-steel rail, 12 mm wide, carrying a single long (L) recirculating-ball carriage fitted before dispatch. The S10 in the code sets the end-hole offset at 10 mm, and the trailing T marks the rail as bottom-mount, so the fixing screws are driven up through the base of the rail rather than down through its top face. Everything needed to bolt the axis down ships in the box.
Bottom-mounting pays off when the upper surface of the machine table must stay clear of fastener heads or when the screws are simply easier to reach from underneath. Inside the carriage, Japanese-made balls graded ISO 3290 G10 run in recirculating paths, held by a ball-retention design that stops them spilling during handling, backed by a double-lip seal and an outer cover for grease retention and dust exclusion. Ambient temperature must stay at or below 80 C, with peaks no higher than 100 C. No load or moment rating is published for LRM, so we confirm the figures for this exact model when you send the RFQ.
Airtac LRM Miniature Linear Guide LRM12L1X245S10AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X245S10AHT |
|---|---|
| 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 | 245 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 LRM12L1X245S10AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X245 | 1 carriage on a 245 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, 245 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 LRM12L1X245S10AHT Is Used
Optical inspection slide
A compact inspection station sliding a camera or sample tray over 245 mm; the bottom-mount rail keeps the visible surface clear for fixturing under the lens.
Laser diode head positioning
Fine longitudinal positioning of a low-mass laser module in a bench-top alignment rig, where the long carriage steadies any tipping of the overhung head.
PCB tray indexing
Light-duty indexing of small electronics trays in a test cell, using the 12 mm rail width to fit a tight machine envelope.
Is the Airtac LRM Miniature Linear Guide LRM12L1X245S10AHT the Right Guide?
If the load is substantial or cantilevered, step up to AirTAC LSH: that series publishes per-carriage dynamic, static and moment ratings you can size against, which LRM does not. For short travel needing crossed-roller rigidity, look at LGC instead. For this set, check: complete-set form, 12 mm rail width, long carriage, one carriage, 245 mm rail length, no preload (A) with the trade-off of more free play, high accuracy, bottom-mount direction, and confirm the load rating with us before ordering. Availability is a strong point: 924 of the 988 stocked LRM sets are size 12, so this configuration typically ships fastest.
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 LRM12L1X245S10AHT FAQ
It is a complete set: 12 mm wide stainless-steel rail, 245 mm long, with a 10 mm end-hole offset, one long carriage, no preload (A), high accuracy (H) and bottom-mount fixing. Screw torques are 58.8 N.cm for M2 and 196 N.cm for M3 into steel (39.2 and 127 into cast iron, 29.4 and 98 into aluminium). Ambient temperature must not exceed 80 C, peaks 100 C. Re-grease every 100 km of travel or every 3-6 months. Load and moment ratings are not published for LRM; we confirm them per model - send the RFQ.
Choose LRM when the envelope is small and the duty light: a 12 mm rail, one long carriage and 245 mm of travel in a compact axis. Choose LSH when the load is substantial or cantilevered, because LSH publishes dynamic, static and moment ratings per carriage that you can size against - LRM publishes none, so load figures are confirmed with us per model. If the travel is short and crossed-roller rigidity is what you need, compare LGC.
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 LRM12L1X245S10AHT
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.