Airtac LRM Miniature Linear Guide LRM12N2X495S10BHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N2X495S10BHT 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 length495 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 LRM12N2X495S10BHT
LRM12N2X495S10BHT is a complete set: a 12 mm wide, 495 mm long stainless-steel rail with two standard-length ball carriages, preloaded to grade B and machined to accuracy H, with fixing holes arranged for mounting from below. The trailing T is the only difference from the top-mount version of this set - the rail width, length, preload and accuracy grade are all identical.
Bottom-mounting means the screws are driven upward and the rail's top face stays clear, which suits any deck, guard or workpiece that passes over the rail. Preload B removes free play while keeping drag moderate. Handling deserves care: the ball-retention design helps, but fitting a carriage at an angle or swapping one hastily can still drop balls, and on an inclined rail the carriage can slide off under its own weight, so hold it during fitting. Japanese ISO 3290 G10 balls, a double-lip seal and an outer cover complete the design, and the ambient limit is 80 C with brief peaks to 100 C. Load and moment ratings are not published for LRM - confirm them with us per model via the RFQ.
Airtac LRM Miniature Linear Guide LRM12N2X495S10BHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N2X495S10BHT |
|---|---|
| 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 | 495 mm (spliced sections) |
| 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 LRM12N2X495S10BHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 2X495 | 2 carriages on a 495 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, 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 LRM12N2X495S10BHT Is Used
Guarded door slide
A sliding inspection door on a small CNC or laser cell runs on rails fixed from below, so the guarded top surface presents no screw heads to catch gloves or product.
Environmental chamber tray axis
Inside a warmed test chamber the 80 C ambient ceiling is the binding constraint; preload B keeps the sample tray assembly tight as the chamber heats and cools.
Wire winding traverse
A traverse that lays wire evenly along a spool benefits from play-free preload B travel across a 495 mm rail mounted flush beneath the guide table.
Is the Airtac LRM Miniature Linear Guide LRM12N2X495S10BHT the Right Guide?
Before settling on this set, test it against the alternatives. LRM carries no published load, moment or speed data, so if your sizing depends on ratings you can read off a table, move to AirTAC LSH, which lists dynamic, static and moment values per carriage. If the travel is short and you need crossed-roller rigidity, LGC is the cross-grade option. If LRM is right, confirm each element of the code: a complete set (not carriage only), 12 mm rail width, 495 mm rail length, two standard carriages, preload B, accuracy H, bottom-mount direction. The mounting face must be ground or finish-milled, and either rail side can serve as the datum - with two carriages, keep the datum on the same side for better running accuracy. Send us the load case with your RFQ and we confirm the rating for this model.
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 LRM12N2X495S10BHT FAQ
This is a complete set with a 12 mm wide, 495 mm long stainless rail, two standard carriages, preload B (light), accuracy H (high) and bottom-mount holes. M3 screws go in at 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminium; the mounting face must be ground or finish-milled. The ambient temperature limit is 80 C with brief 100 C peaks, and re-greasing falls due every 100 km of travel or every 3 to 6 months. AirTAC publishes no load or moment ratings for LRM - we confirm them for this model before you order.
Slide carriages on straight and slowly; angling them onto the rail or swapping them quickly can drop balls despite the retention design, and a dummy rail makes fitting easier. Never dismantle a carriage, never strike or drop the rail, and hold the carriage on any incline. We stock only a handful of carriage-only SKUs across the range, so a replacement carriage for this set is normally a special order - we will quote it with the pairing details.
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 LRM12N2X495S10BHT
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.