Airtac LRM Miniature Linear Guide LRM12N2X445S10BH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X445S10BH 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 length445 mm
- AccuracyH — high 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 LRM12N2X445S10BH
This LRM12N2X445S10BH arrives as a full miniature guide set: a 445 mm stainless-steel rail, 12 mm wide, drilled 10 mm from each end, carrying two standard-length carriages. Accuracy is high grade (H) and preload is grade B - the light preload that sits between the free-running A fit and the rigid C fit.
Light preload is the practical choice when a mechanism must not rock but still needs to move with minimal breakaway effort, and the two carriages on one rail add resistance to tipping along the travel. The recirculating balls are Japanese made to ISO 3290 G10 - a ball grade only, not an assembly standard - and the retention design keeps them in place during handling, though the maker warns that quick swaps or angled fitting can still drop them. A double-lip seal handles oil scraping and dust, with an outer cover over the screw line. The ambient limit is 80 C. Note the re-grease clock: 100 km of travel comes round fast - a 200 mm stroke cycling once a second covers it in roughly three weeks of continuous running - so the distance usually binds before the calendar's 3 to 6 months. LRM load and moment ratings are confirmed per model, not published; include them in your RFQ and we will confirm.
Airtac LRM Miniature Linear Guide LRM12N2X445S10BH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X445S10BH |
|---|---|
| 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 | 445 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high 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 LRM12N2X445S10BH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X445 | 2 carriages on a 445 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. |
| H | H — high grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 445 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 LRM12N2X445S10BH Is Used
Desktop vial-handling gantry
A small Cartesian gantry moving lab vials between tray and analyzer uses the light preload to take up play, so the gripper does not drift at the end of each 445 mm traverse.
High-cycle probe shuttle
A light test probe shuttling between two fixture positions all shift long racks up travel distance quickly - at a 200 mm stroke and one cycle per second, the 100 km re-grease point arrives in about three weeks.
Fiber connector polishing slide
A polishing fixture for fiber-optic connectors rides on the light-preloaded carriages, keeping the fixture from rocking while the operator works on the connector end face.
Is the Airtac LRM Miniature Linear Guide LRM12N2X445S10BH the Right Guide?
The decisive question here is preload: grade B adds a light internal fit, so pick it over A when play matters, and accept that it demands a cleaner, flatter seat than the free-running fit. If the load is heavy or cantilevered, move up to AirTAC LSH, whose catalogue lists per-carriage dynamic, static and moment ratings you can calculate with - the very numbers LRM omits. For short-stroke work needing crossed-roller stiffness, LGC is the alternative. Checklist before ordering: complete set with two standard carriages, 12 mm rail width, 445 mm rail length, preload B, high (H) accuracy, top-mount fixing - and confirm the load rating with us, since LRM has no published figures. If you later need a long carriage instead, we stock those almost as deeply as standard ones.
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 LRM12N2X445S10BH FAQ
In the box: one 445 mm stainless rail, 12 mm wide, with 10 mm end-hole offset, plus two standard carriages, high (H) accuracy, light preload B, top-mount fixing, M3 screws at 196 N.cm (steel), 127 N.cm (cast iron) or 98 N.cm (aluminium). Re-grease every 100 km or 3 to 6 months with the per-model quantity; ambient temperature limit 80 C. What is not in the catalogue: LRM load and moment ratings. They are simply not published, so we confirm them per model before you order - add that to your RFQ.
Yes, but plan it. Carriage-only SKUs (codes with BK) carry a pairing letter, and a replacement carriage must share that code with the rail; you read the letter off the original part. We stock only a handful of carriage-only items, so most replacement carriages are a special order. During the swap, the ball-retention design helps but is not a guarantee - insert the carriage square and without haste, and keep a dummy rail handy for safe fitting.
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 LRM12N2X445S10BH
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.