Airtac LRM Miniature Linear Guide LRM12N1X245S10APT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X245S10APT 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 length245 mm
- AccuracyP — precision 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 LRM12N1X245S10APT
Bottom fixing and precision finishing in one SKU: AirTAC LRM12N1X245S10APT is a complete miniature guide set with a 245 mm stainless-steel rail, 12 mm wide, and a single standard recirculating-ball carriage. The rail is secured from below, which keeps the visible top surface clean and suits frames where the upper side is occupied by parts, guards or optics.
Because this is the P grade, the mounting surface has to earn it: grind or finish-mill the seat before fitting, or the tighter guide tolerances are wasted. Either edge of the rail can serve as the datum face, and the catalogue edge-distance figures (Q1, Q2, H1 and corner radius R) vary by size, so check the row for yours. The balls are Japanese ISO 3290 grade G10 rolling elements, protected by a double-lip seal under an outer cover, and the ball-retention design reduces - but does not eliminate - the chance of dropped balls during handling. Keep ambient temperature at or below 80 C. No load or moment rating is published for LRM; include your load case in the RFQ and we confirm the numbers for this model.
Airtac LRM Miniature Linear Guide LRM12N1X245S10APT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X245S10APT |
|---|---|
| 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 | 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 | 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 LRM12N1X245S10APT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard 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. |
| 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 LRM12N1X245S10APT Is Used
PCB test probe gantry
A flying-probe tester's probe carrier rides a small precision rail; bottom fixing keeps the deck surface clear for the cable loom and probe fixtures.
Sensor sub-assembly line
A compact station that presses components into a sensor housing uses the 245 mm travel for load and unload, with the P grade holding placement consistency across shifts.
Fiber-optic ferrule alignment
Aligning a ferrule to a detector on an optical test bench: bottom fixing leaves the optical path above the deck clear, and the unloaded carriage settles without drag for fine adjustment.
Is the Airtac LRM Miniature Linear Guide LRM12N1X245S10APT the Right Guide?
Start from the load question. A substantial or overhung load belongs on LSH, which publishes dynamic, static and moment ratings per carriage that you can size against - LRM gives you no published figures to calculate with. Short travel with a rigidity demand is LGC territory, crossed rollers doing the work. If LRM still fits, verify this list: complete set form, 12 mm rail width, standard carriage, one carriage, 245 mm rail length, preload A (none - accept internal play or design your own preload), accuracy P, bottom-mount fixing, and the ground or finish-milled seat the P grade expects. Replacement carriages need a matching pairing letter and are rarely stocked, so plan ahead. Confirm the load rating with us before you commit - it is checked model by 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 LRM12N1X245S10APT FAQ
Yes - this is a complete set: one 245 mm stainless rail, 12 mm wide, with one standard carriage fitted and pre-greased with Kyodo Yushi PS No. 2. The trailing T makes it a bottom-mount rail, so screws are driven through the underside into the machine base; nothing else is in the box apart from the rust-preventive film you wipe off before first lubrication. Note that carriage-only spares are a different ordering code (BK), and only a few of those are stocked, so most spare carriages are a special order.
A 12 mm wide, 245 mm long stainless rail with one standard carriage, no preload (A), precision accuracy (P) and bottom-mount fixing. Fixing torque: M2 screws 58.8 N.cm in steel, 39.2 N.cm in cast iron, 29.4 N.cm in aluminium; M3 screws 196, 127 and 98 N.cm. Ambient limit 80 C, short peaks to 100 C. Re-grease after every 100 km of travel or every 3 to 6 months. The manufacturer publishes no load or moment ratings for LRM; we confirm them for this specific model through the RFQ process.
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 LRM12N1X245S10APT
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.