Airtac LRM Miniature Linear Guide LRM12L2X145S10CPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X145S10CPT 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 length145 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 LRM12L2X145S10CPT
LRM12L2X145S10CPT is the bottom-mount version of the 145mm LRM12 set. The stainless-steel rail, 12mm wide, is drilled for screwing from below, so the whole guide bolts up into a pocket or under an overhanging surface and leaves the top face clear for the payload. Two long recirculating-ball carriages ride the rail as supplied.
Bottom fixing is the answer when the deck above the rail cannot be drilled through - a cover, a cable duct or the working surface itself. The outer cover spans the carriage to shield the double-lip seal from swarf and larger debris, and the retained balls stay with the carriage during normal handling, though a swap done at an angle or too quickly can still drop them, so work slowly or use a dummy rail. Japanese-made ISO 3290 G10 balls - a grade for the balls alone - run the raceways. Keep ambient temperature at or below 80 C, with brief peaks to 100 C. As with every LRM model, no load or moment rating is published; we verify it for this part number via the RFQ before you order.
Airtac LRM Miniature Linear Guide LRM12L2X145S10CPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X145S10CPT |
|---|---|
| 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 | 145 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 LRM12L2X145S10CPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X145 | 2 carriages on a 145 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, 145 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 LRM12L2X145S10CPT Is Used
Under-shelf camera slider
A machine-vision camera gliding beneath a raised inspection deck: bottom-mount fixing leaves the working surface intact above the rail.
PCB test fixture drive
Positioning a probe head across a printed-circuit board in a bed-of-nails tester; the concealed fixing keeps the top plate unbroken and flat.
Enclosed axis retrofit
Adding a slide inside a guarding shroud where the outer face cannot be drilled: the carriages screw up from beneath through the base plate.
Is the Airtac LRM Miniature Linear Guide LRM12L2X145S10CPT the Right Guide?
LRM suits light, accurate travel in a tight space; if the load is heavy or overhung, step to AirTAC LSH, whose catalogue gives dynamic, static and moment ratings per carriage - figures LRM does not print. Short travel demanding maximum stiffness points to LGC with its crossed rollers. Match this set to the job by checking: set form rather than a spare carriage, 12mm rail width, long carriage length, a count of two, 145mm rail length, medium preload C and the firmer seating it demands, precision P grade, bottom-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 LRM12L2X145S10CPT FAQ
A 12mm wide, 145mm long stainless rail with two long carriages, medium preload (C), precision (P) accuracy and a bottom-mount hole pattern. Drive the M3 screws to 196 N.cm in steel, 127 N.cm in cast iron and 98 N.cm in aluminium (M2: 58.8, 39.2 and 29.4 N.cm). Re-grease - Kyodo Yushi PS No. 2 is the factory fill - every 100km run or every 3 to 6 months. The ambient limit is 80 C with peaks to 100 C. LRM carries no published load or moment ratings, so we confirm them for this model when you enquire.
The complete set: one 145mm stainless rail, 12mm wide, with both long carriages factory-fitted and pre-greased, so no separate rail purchase is needed and the mounting screws go in from underneath. It is not a carriage-only code. Worth knowing for later: we stock close to a thousand LRM12 sets but only a handful of separate carriages, so a spare block ordered down the line will usually be a special order, matched by pairing code to the letter on your rail.
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 LRM12L2X145S10CPT
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.