Airtac LRM Miniature Linear Guide LRM12N2X445S10BPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X445S10BPT 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
- 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 LRM12N2X445S10BPT
LRM12N2X445S10BPT is a complete LRM12 miniature guide set whose defining feature sits underneath: the T suffix places the mounting holes on the rail's underside, so the axis bolts up from below a plate or inside a slot where no screwdriver reaches the top face. You receive one 445 mm stainless rail, 12 mm wide, with two standard-length carriages already running on it.
Installation is the part to get right. The mounting surface should be ground or finish-milled to hold travel accuracy; either rail side can serve as the datum face, and with two carriages the datum edge should sit on the same side for both. Never strike the rail - damage that shortens life can be invisible. The double-lip seal and outer cover protect the raceways, the balls inside are ISO 3290 G10 Japanese grade, and the assembly tops out at 80 C ambient with 100 C transients. Load capacity is deliberately not quoted here: LRM publishes no load or moment figures, so we confirm the ratings for this exact set through your RFQ.
Airtac LRM Miniature Linear Guide LRM12N2X445S10BPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X445S10BPT |
|---|---|
| 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 (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 LRM12N2X445S10BPT
| 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. |
| P | P — precision 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 LRM12N2X445S10BPT Is Used
Compact checking station
A bench inspection station with the rail bolted beneath a moving probe plate: underside fixing keeps the working face flush and every screw hidden from the part.
Wire-bonding feeder slide
Advancing a lead-frame feeder in short, repeatable steps, where the precision P grade supports the small increments the bond head demands.
Instrument prototyping plate
A quick-fit axis for a prototype lab device - bolt the rail up from below a milled plate, add the driven carriage, and light preload keeps manual pushing effortless.
Is the Airtac LRM Miniature Linear Guide LRM12N2X445S10BPT the Right Guide?
Two ways to size, one rule to keep. The rule: LRM lists no dynamic, static or moment ratings, so nothing here can be calculated from a table - send the configuration and we confirm the figures per model. Way one, step up: a substantial or cantilevered load belongs on LSH, whose published per-carriage ratings make the maths straightforward. Way two, step across: short travel with a rigidity priority suits LGC and its crossed rollers. Match list for this set: form - complete set with rail; rail width 12 mm; standard carriages, two of them; rail length 445 mm; end offset 10 mm; preload B, light, chosen for smooth running over stiffness; accuracy P, precision; bottom-mount holes for underside fixing. Worth knowing before you trim the design: listed LRM sets span roughly $66 to $831 across only two rail widths, and that spread is almost entirely length and block count - shortening travel saves far more than changing size.
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 LRM12N2X445S10BPT FAQ
Governed by the code: 12 mm rail width, 445 mm rail length, two standard-length blocks, 10 mm end-hole offset, preload B (light), accuracy P (precision), bottom-mount rail in plain stainless finish. Fit the rail with M3 screws at 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminum, on a ground or finish-milled face. Grease is Kyodo Yushi PS No. 2 from the factory, topped up every 100 km of travel or every 3 to 6 months through the rear lubrication hole. Ambient ceiling 80 C, transient ceiling 100 C. Missing from every LRM source: load rating, moment rating and running-parallelism tolerance - all confirmed per model when you send the RFQ.
One assembly. The 445 mm rail arrives with both standard carriages fitted and greased; nothing else is needed to build a working axis. Codes containing BK are the opposite case - a carriage alone, with no rail and a pairing letter A to E that must match the rail's own letter, which matters mainly when replacing a single block. Only a small number of carriage-only SKUs are listed at all, so treat any future block replacement on this rail as something to plan and order early, ideally alongside a dummy rail 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 LRM12N2X445S10BPT
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.