Airtac LRM Miniature Linear Guide LRM12N1X245S10BPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X245S10BPT 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
- PreloadB — light 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 LRM12N1X245S10BPT
The LRM12N1X245S10BPT is a complete miniature guide from the AirTAC LRM range: one stainless-steel rail, 12 mm wide and 245 mm long, carrying a single standard-length ball carriage, fixed from below because of the trailing T in the code.
Pairing P precision accuracy with underside fixing fits instruments where the working surface must stay clear and the travel must hold a tight line - optical hardware, semiconductor jigs, metrology fixtures. Grease is Kyodo Yushi PS No. 2 from the factory, topped up via the hole at the rear of the carriage; remember that the 100 km interval binds before the calendar does, since a 200 mm stroke cycling once a second covers it in about three weeks of continuous running. Keep ambient temperature at 80 C or below, peaks to 100 C. No load or moment rating is published for LRM - we confirm it per model, so raise the RFQ first.
Airtac LRM Miniature Linear Guide LRM12N1X245S10BPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X245S10BPT |
|---|---|
| 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 | B — light 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 LRM12N1X245S10BPT
| 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. |
| B | B — light 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 LRM12N1X245S10BPT Is Used
Microscope sample stage
A laboratory scanning stage for slide-based assays gains a smooth 245 mm traverse; fixing from below keeps the top deck flush so slides and holders seat flat every time.
Fibre collimator alignment jig
Aligning fibre collimators on a prototype bench calls for fine, repeatable motion; the precision grade supports that while hidden fasteners keep the beam path unobstructed.
Benchtop laser marker overhaul
During service of a small laser marker, a bottom-fixed rail unbolts from beneath without disturbing the optics above, making a rail swap a clean one-person job.
Is the Airtac LRM Miniature Linear Guide LRM12N1X245S10BPT the Right Guide?
If the carriage will carry real load or overhang, AirTAC LSH is the safer series - it publishes per-carriage dynamic, static and moment ratings you can design to, unlike LRM. When travel is short but stiffness is everything, crossed-roller LGC is the alternative. Checklist for this part: complete set form, 12 mm rail width, standard carriage, one block, 245 mm rail length, B light preload (frees the slide at a small cost in rigidity), P precision grade, bottom-mount direction, and a load rating we confirm for you before the order.
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 LRM12N1X245S10BPT FAQ
The rail is 12 mm wide and 245 mm long, carrying one standard carriage with B light preload, P precision accuracy and bottom-mount fixing. Drive M3 screws to 196 N.cm in steel, 127 N.cm in cast iron and 98 N.cm in aluminium; M2 screws take 58.8, 39.2 and 29.4 N.cm. The carriage ships greased with Kyodo Yushi PS No. 2; re-grease every 100 km of travel or every 3 to 6 months, and never exceed 80 C ambient (100 C transient). No load or moment rating is published for LRM - we confirm the figure for this model on request.
One complete set: a 245 mm stainless-steel rail, 12 mm wide, with the standard-length carriage already mounted - nothing else to buy. The rail fixes from beneath, and on rails with more than one carriage every datum edge should sit on the same side for best running accuracy. If you later need a spare carriage on its own, plan ahead: only a handful of carriage-only SKUs are stocked, so most spares are a special order matched by pairing code to the original 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 LRM12N1X245S10BPT
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.