Airtac LRM Miniature Linear Guide LRM12L2X495S10CPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X495S10CPT 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 length495 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 LRM12L2X495S10CPT
The trailing T in LRM12L2X495S10CPT changes where the screws go: this 495 mm, 12 mm wide stainless-steel rail is drilled for bottom-mount fixing, so the fasteners pass up through the base and the top face stays clear. Two long carriages run the rail with medium preload C and precision accuracy P, and the set arrives complete - rail and both blocks together.
Bottom-mount suits frames where you cannot get a tool above the rail: enclosed bases, pockets machined into a machine table, or a stage deck that must stay unbroken on top. Either side of the rail can serve as the datum face, and the mating surface still needs to be ground or finish-milled to hold travel accuracy. The running gear is familiar - ISO 3290 G10 Japanese balls recirculating on the common LRM profile, double-lip seals, an outer cover, and preload C for a firm, backlash-free feel. The ball retainer helps, but a block fitted at an angle or swapped in haste can still shed balls, so work carriages on squarely; if field swaps are planned, a dummy rail is worth having. Keep the ambient at or below 80 C, peaks to 100 C. There is no published load rating for LRM - we will confirm the figure for this exact model when you send the RFQ.
Airtac LRM Miniature Linear Guide LRM12L2X495S10CPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X495S10CPT |
|---|---|
| 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 | 495 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 | 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 LRM12L2X495S10CPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X495 | 2 carriages on a 495 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, 495 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 LRM12L2X495S10CPT Is Used
Test-chamber sample drawer
A sliding drawer carrying coupon samples in and out of a temperature-controlled chamber kept below the 80 C ambient ceiling: bottom-mount fixing leaves the drawer floor unbroken.
Under-deck XY stage
A two-axis stage built beneath a machine-table plate, where the rail screws are reached only from below and the working surface above stays clear of fastener heads.
Optics bench lens slider
A lens carrier on an optical breadboard rail, repositioned between experiments: the medium preload holds focus positions without drift while the rail top remains free for clamps.
Is the Airtac LRM Miniature Linear Guide LRM12L2X495S10CPT the Right Guide?
Start from the numbers you need to defend. LSH publishes per-carriage dynamic, static and moment ratings you can size and document against; LRM does not, so if your design review demands those figures, or the load is beyond light duty, LSH is the series to step into. For short travels where crossed rollers earn their rigidity, cross to LGC. To order this set, confirm: complete-set form, 12 mm rail width, long carriage, two blocks, 495 mm rail length, medium preload C, precision grade P, bottom-mount T fixing and the 10 mm offset - then confirm the load rating with us for this specific model before purchase.
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 LRM12L2X495S10CPT FAQ
The stated spec: 12 mm rail width, 495 mm length, two long carriages, medium preload C, precision accuracy P, and bottom-mount fixing with holes offset 10 mm from the rail ends. Installation calls for ground or finish-milled mating surfaces; torque M2 screws at 58.8 N.cm and M3 at 196 N.cm into steel, dropping to 39.2 and 29.4 N.cm (M2) and 127 and 98 N.cm (M3) in cast iron and aluminium. Grease is Kyodo Yushi PS No. 2 on delivery; top up every 100 km of travel or every 3 to 6 months. Keep ambient temperature at or below 80 C, with peaks no higher than 100 C. Load and moment ratings are not published for LRM - we confirm them per model.
Choose LSH when the sizing case needs published numbers. That series lists dynamic, static and moment ratings for each carriage, so an engineer can document margins properly; LRM offers no such table and instead has its capacity verified model by model - ask us. If the load is genuinely light and the envelope small, this bottom-mount LRM set is the fit; if the load grows or overhangs, graduate to LSH. For short, stiff strokes, LGC's crossed rollers are the third option.
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 LRM12L2X495S10CPT
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.