Airtac LRM Miniature Linear Guide LRM12L2X445S10CP
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X445S10CP 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 lengthLong carriage
- Carriages2
- Rail length445 mm
- AccuracyP — precision grade
- PreloadC — medium 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 LRM12L2X445S10CP
For metrology work, LRM12L2X445S10CP pairs the two things a measuring fixture cares about: accuracy grade P - the precision grade - and preload grade C, which removes play so a probe or camera returns to the same position after every reversal. You receive a full set: one 12 mm wide stainless-steel rail, 445 mm long, with two long pre-greased carriages, top-mount fixing and 10 mm end-hole offsets.
Mounting discipline decides how much of grade P survives installation: machine the seat ground or finish-milled, choose either rail side as the datum, and with two carriages on a rail keep the datum on the same side for both to preserve running accuracy. Inside the carriage, Japanese-made ISO 3290 G10 balls (that grade covers the balls only, not the guide) run between double-lip seals under an outer cover, and the ball-retainer reduces - but does not eliminate - the risk of dropped balls during carriage swaps. Ambient temperature must not exceed 80 C, worth respecting inside a heated inspection cabinet. LRM publishes no load or moment ratings; ask through the RFQ and we will confirm the figures for this exact part.
Airtac LRM Miniature Linear Guide LRM12L2X445S10CP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X445S10CP |
|---|---|
| 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 | 2 |
| Rail length | 445 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision grade |
| Preload grade | C — medium 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 LRM12L2X445S10CP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X445 | 2 carriages on a 445 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| C | C — medium 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 LRM12L2X445S10CP Is Used
Vision inspection fixture for machined pins
A camera carriage gliding over a nest of small turned parts needs repeatable stops more than muscle; grade P accuracy and play-free grade C preload keep the image field where the recipe expects it.
Optics bench alignment slider
Setting a lens or mirror train often means nudging a component a fraction at a time; low-play medium preload lets a micrometer adjuster move the optic smoothly, and either rail edge can serve as the mounting datum.
Probe calibration rig for small sensors
Sweeping a reference probe across a test station calls for steady, repeatable travel; two long carriages on one rail keep the probe bracket from nodding, and the 80 C limit sits far above typical lab conditions.
Is the Airtac LRM Miniature Linear Guide LRM12L2X445S10CP the Right Guide?
Three series overlap at this scale, so choose deliberately. LSH is the one with published numbers - per-carriage dynamic, static and moment ratings - and it is the right move when the load is substantial or hangs on a cantilever, because LRM gives you no ratings to calculate against. LGC answers the short-travel case, where crossed rollers give rigidity that balls cannot match. For staying with this LRM code, run the checklist: complete set, 12 mm rail width, long carriages, two per rail, 445 mm rail, preload C (rigid but draggy), accuracy P, top-mount mounting, and a load rating confirmed with us before you commit. One planning note: stocked LRM sets cluster overwhelmingly around size 12, so a design kept on this rail width is the one the range supports best.
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 LRM12L2X445S10CP FAQ
Rail width 12 mm; rail length 445 mm; two long carriages; preload C (medium); accuracy P (precision); top-mount rail with 10 mm end-hole offset. Screws: 196 N.cm into steel, 127 into cast iron, 98 into aluminium for M3, or 58.8 / 39.2 / 29.4 N.cm for M2. Running environment: 80 C ambient maximum, 100 C transient peak; re-grease every 100 km of travel or every 3 to 6 months via the port at the rear of each carriage. Basic dynamic load, static load and moment ratings are not published for LRM - we confirm them per model before you order.
This code is a complete set - rail and two carriages together, matched and greased with Kyodo Yushi PS No. 2 at the factory; beyond screws and a prepared surface, nothing else is needed to create the guiding axis. Top up grease through the hole at the rear of each carriage when due. Note the manufacturer's caution: the ball retainer helps, but balls can still drop if a carriage is tilted onto the rail or swapped hastily, so keep carriages on the rail unless necessary - and since very few carriage-only SKUs are listed, a replacement carriage usually becomes a special order.
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 LRM12L2X445S10CP
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.