Airtac LRM Miniature Linear Guide LRM12L1X245S10CPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X245S10CPT 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
- AccuracyP — precision 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 LRM12L1X245S10CPT
The code LRM12L1X245S10CPT describes a complete LRM12 set built for a specific installation problem: the trailing T fixes the rail for bottom-mounting, so the screws are reached from beneath and the visible top face stays completely clear. The set is a 245 mm stainless rail, 12 mm wide, with one long carriage, medium preload C and precision accuracy grade P.
Precision (P) sits one grade above high (H), and it earns its place on measuring equipment where deviation along the travel matters. Bottom-mounting suits channels, pockets and frames where no tool can approach the rail from above. Inside, the long carriage runs on ISO 3290 G10 Japanese balls, sealed by a double-lip design and shielded by an outer cover, with ball retention limiting dropped balls during careful handling. The ambient temperature limit is 80 C, transients to 100 C. Load and moment ratings are not published for LRM; send the RFQ and we will confirm them for this exact configuration.
Airtac LRM Miniature Linear Guide LRM12L1X245S10CPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X245S10CPT |
|---|---|
| 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 | P — precision 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 LRM12L1X245S10CPT
| 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. |
| P | P — precision 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 LRM12L1X245S10CPT Is Used
Probe station measurement axis
A semiconductor probe station traverses its measurement head along this bottom-mount rail, keeping the top surface clear for probes, cameras and vacuum chucks.
Flat-flex cable inspection slide
An electronics lab inspects crimped flat-flex terminations under a camera riding on this bottom-mount rail, so no screw heads intrude on the optical path above.
PCB test nest indexer
A functional-test rig pushes small PCB carriers between nests on this 12 mm rail; the long carriage resists nodding as each board is seated into its spring contacts.
Is the Airtac LRM Miniature Linear Guide LRM12L1X245S10CPT the Right Guide?
Match the series to the evidence. LRM provides no tabulated dynamic, static or moment ratings, so for a load that is anything more than incidental, choose LSH, where per-carriage ratings let you verify margin on paper. For very short travel demanding crossed-roller rigidity, LGC is the alternative worth pricing. Order checklist: complete set form, 12 mm rail width, long carriage, one carriage, 245 mm rail, medium preload C - the stiff choice that asks for a well-machined seat - precision P accuracy, bottom-mount rail. Confirm the load rating 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 LRM12L1X245S10CPT FAQ
Rail 12 mm wide and 245 mm long, one long carriage, medium preload C, precision accuracy P, bottom-mount rail. Fixing torques: M2 screws 58.8 N.cm into steel, 39.2 N.cm into cast iron, 29.4 N.cm into aluminium; M3 screws 196, 127 and 98 N.cm. Ambient limit is 80 C with 100 C transients. Re-lubricate through the carriage port every 100 km of travel or every 3 to 6 months. Note that AirTAC publishes no load, moment or parallelism figures for LRM - each is confirmed per model through us.
The T at the end of the code means the rail is configured for fixing from underneath, so screws sit hidden and the top face stays clean - useful inside channels and frames. The box holds the 245 mm stainless rail and the single long carriage as a matched, pre-greased pair; no spacer or bed is supplied. Mount on a ground or finish-milled face, and handle the carriage square to the rail so the ball-retention feature can do its job.
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 LRM12L1X245S10CPT
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.