Airtac LRM Miniature Linear Guide LRM12L1X245S10CHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X245S10CHT 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
- PreloadC — medium 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 LRM12L1X245S10CHT
This is the AirTAC LRM12L1X245S10CHT, a complete miniature linear guide set. In the box: one 245 mm stainless-steel rail, 12 mm wide, drilled for M3 screws on a 10 mm end-hole offset, and one long recirculating-ball carriage, factory-fitted and pre-greased. The trailing T in the code means bottom-mount fixing: you drive the screws upward from beneath, leaving the rail's top face clear for covers, clips or workpiece stops.
The long carriage spreads the load over more balls and lengthens the bearing span, and preload C (medium) is the stiffest choice this series offers - a good pairing where a small tipping moment must be resisted. The long L block shares the same rail profile as the standard N block, so a layout can mix lengths on one 12 mm rail. The balls inside are Japanese-made to ISO 3290 G10, a grade for the balls alone, not for the assembly. A double-lip seal and an outer cover hold grease in and keep swarf out, and the ball-retainer helps during handling, though balls can still drop if the carriage is fitted at an angle. 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, so we confirm them for this exact model before you order - send the RFQ.
Airtac LRM Miniature Linear Guide LRM12L1X245S10CHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X245S10CHT |
|---|---|
| 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 | C — medium 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 LRM12L1X245S10CHT
| 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. |
| C | C — medium 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 LRM12L1X245S10CHT Is Used
Wafer inspection microscope stage
A long carriage under a compact inspection camera carries the optics with a longer bearing span, and preload C keeps the stage firm when an operator taps a wafer chuck into place.
SMT pick-and-place head slide
Bottom-mount fixing lets the rail sit flush inside a compact head gantry with no screw heads proud on the top face, and the 245 mm stroke covers a short feeder-to-board transfer.
Laser diode alignment fixture
High-accuracy running over a short, precise stroke suits lens-and-diode alignment jigs; check the 80 C ambient ceiling if the fixture sits beside a heat source.
Is the Airtac LRM Miniature Linear Guide LRM12L1X245S10CHT the Right Guide?
If your load is substantial or hangs on a cantilever, step up to the AirTAC LSH series: it publishes per-carriage dynamic, static and moment ratings you can size against, which LRM does not. For short travel that needs crossed-roller rigidity, LGC is the closer match. Before ordering, work the checklist: form (this is a set, rail and carriage together), 12 mm rail width, long carriage, one carriage, 245 mm rail, preload C - the rigid choice that trades away some running ease - accuracy H, and bottom-mount fitting. Ask us to confirm the load rating for this exact model.
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 LRM12L1X245S10CHT FAQ
Rail width 12 mm, rail length 245 mm, one long (L) carriage, preload C (medium), accuracy H (high), bottom-mount rail with a 10 mm end-hole offset. M3 mounting screws torque to 196 N.cm in steel, 127 N.cm in cast iron, 98 N.cm in aluminium. Ambient temperature must not exceed 80 C, with transient peaks to 100 C. Re-grease 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 them per model before you order.
It is a complete set: one 245 mm stainless rail plus one long carriage, assembled and pre-filled with Kyodo Yushi PS No. 2 grease, so nothing else is needed to mount it. A carriage bought on its own is a different ordering code ending in BK, and only a handful of those are stocked - most replacement carriages are 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 LRM12L1X245S10CHT
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.