Airtac LRM Miniature Linear Guide LRM12L1X245S10APT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X245S10APT 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
- 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 LRM12L1X245S10APT
This set, LRM12L1X245S10APT, pairs a 245 mm stainless-steel rail (12 mm wide, end holes offset 10 mm) with a single long recirculating-ball carriage, fixed bottom-mount so the screws are driven from beneath the mounting surface. The long body lengthens the bearing span between the payload and its tipping point - useful on any single-rail slide carrying an overhung component.
Across the listed LRM12 range, rail length - not rail size - drives most of the price spread, so trimming travel before settling on a size is the thrifty move. Preload A (none) and accuracy P (precision) make this version free-running yet accurate, with Japanese ISO 3290 G10 balls doing the rolling - a grade that applies to the balls alone. Ball retention keeps them captive during handling, but angle the carriage onto the rail or swap it hastily and balls can still drop, so keep a dummy rail handy. Ambient temperature must stay at or below 80 C, brief 100 C peaks excepted. LRM publishes no load or moment ratings; send us your duty cycle and we will confirm the figures for this model.
Airtac LRM Miniature Linear Guide LRM12L1X245S10APT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X245S10APT |
|---|---|
| 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 | 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 LRM12L1X245S10APT
| 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. |
| 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 LRM12L1X245S10APT Is Used
Small dosing slide in packaging
A free-running long carriage drives a micro-dosing nozzle along a 245 mm track on a compact food or cosmetics filling machine.
Laser engraver gantry retrofit
Upgrading a hobby laser engraver's X-axis? The long body and zero preload give an easy-sliding head mount that fits the original 12 mm footprint.
Encoder test rig slide
Bottom-mount fixing lets the rail hang under an aluminium plate in a bench rig that strokes a linear encoder through repeat verification runs.
Is the Airtac LRM Miniature Linear Guide LRM12L1X245S10APT the Right Guide?
Match the part to the job before committing. Substantial or cantilevered loads belong on LSH, where the catalogue publishes per-carriage dynamic, static and moment ratings; LRM does not publish any. Short travels that prize crossed-roller rigidity point to LGC. For this SKU, confirm: complete-set form, 12 mm rail width, long carriage, one carriage, 245 mm rail, preload A, accuracy P, bottom-mount direction, plus a load rating confirmed with us. LRM12 is the depth of this range - 924 of the 988 guide sets listed - so alternatives within the size are easy to re-specify if your rail length or preload changes.
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 LRM12L1X245S10APT FAQ
12 mm rail width; 245 mm rail with 10 mm end-hole offset; one long carriage; preload A (none); accuracy P (precision); bottom-mount mounting. Torque figures: M2 screws 58.8 N.cm into steel, 39.2 cast iron, 29.4 aluminium; M3 196, 127 and 98 N.cm respectively. Ambient limit 80 C, transients to 100 C. Re-grease every 100 km of travel or every 3 to 6 months - a 200 mm stroke cycling once per second covers 100 km in roughly three weeks of continuous running. Load and moment ratings are not published for LRM; we confirm per model.
When the carriage deck or a machine wall blocks access from above, the T-code rail is the only one you can actually fasten. Everything else matches its top-mount sibling: same 245 mm length, same long carriage, same preload A and precision P. If your frame does allow screws from above, the non-T variant is simpler to install - and either way, ask us to confirm the load rating for your duty before ordering.
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 LRM12L1X245S10APT
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.