Airtac LRM Miniature Linear Guide LRM12N2X245S10BPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X245S10BPT 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 lengthStandard carriage
- Carriages2
- 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 LRM12N2X245S10BPT
LRM12N2X245S10BPT is a matched set - a 245 mm stainless steel rail, 12 mm wide, carrying two standard carriages with light preload and precision (P) accuracy, fixed from below the rail. The carriages arrive pre-filled with Kyodo Yushi PS No. 2 grease and run on ISO 3290 G10 Japanese balls.
One caution worth planning around: the ball-retention design helps, but it is a handling aid, not a guarantee. Slide a carriage on at an angle, or swap it in a hurry, and balls can still drop - the manufacturer says so directly, and recommends a dummy rail for fitting work. Mind the 80 C ambient limit (transient peaks to 100 C) and keep the rail out of the hot corner of an enclosure. The outer cover and double-lip seal handle dust and oil control between services. No load or moment ratings exist in the LRM catalogue; we confirm the numbers for this model against your RFQ before you commit.
Airtac LRM Miniature Linear Guide LRM12N2X245S10BPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X245S10BPT |
|---|---|
| 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 | 2 |
| 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 LRM12N2X245S10BPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X245 | 2 carriages 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, 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 LRM12N2X245S10BPT Is Used
Retrofit of an older inspection gauge
Replacing a worn slide in a small comparator or gauge with a bottom-mount, precision-grade set is a clean upgrade - the rail fixes from below, so the existing top surface can stay as-is.
Miniature vial feeder
A short belt conveyor for vials or small parts can ride on twin carriages under the deck; bottom mounting keeps the load path inside the frame.
Small-parts sorting module
A light sorting gate or pusher in an electronics plant lines up on a 12 mm rail; two blocks keep the pusher from cocking as it meets a part.
Is the Airtac LRM Miniature Linear Guide LRM12N2X245S10BPT the Right Guide?
Work through the checklist in this order: confirm it is a complete set (rail included), rail width 12 mm, standard carriage length, two blocks, 245 mm rail, light preload - the middle setting, removing most play without the drag of C - precision accuracy, and bottom-mount fixing. Then send us your loads: LRM carries no published load or moment ratings, so we confirm them for this exact SKU.
If your calculation needs published numbers to start from, LSH is the step up - it lists per-carriage dynamic, static and moment ratings. If the travel is short and rigidity per millimetre matters most, crossed-roller LGC is the step across.
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 LRM12N2X245S10BPT FAQ
12 mm rail width, 245 mm rail length, two standard carriages, preload B (light), accuracy P, bottom-mount rail. Screw torques per the catalogue: M3 - 196 N.cm steel, 127 N.cm cast iron, 98 N.cm aluminium; M2 - 58.8 / 39.2 / 29.4 N.cm. Ambient limit 80 C with peaks to 100 C. Re-grease every 100 km of travel or every 3 to 6 months; on a 200 mm stroke cycling once a second, that 100 km arrives in about three weeks of continuous running, so the distance binds before the calendar. No load or moment ratings are published for LRM - they are confirmed per model through our RFQ.
Carriage-only LRM codes exist in the LRM12BK format and are matched by a pairing letter, A to E - the replacement must share the code that matches your original carriage and rail, so read it off before ordering. Our carriage-only stock is thin - just four SKUs - so most replacements are a special order. When fitting one, go slowly: the ball-retention design helps, but an angled or rushed insertion can still drop balls, and a dummy rail makes the job safer.
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 LRM12N2X245S10BPT
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.