Airtac LRM Miniature Linear Guide LRM12L2X470S10BHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X470S10BHT 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 length470 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 LRM12L2X470S10BHT
LRM12L2X470S10BHT is the light-preload (B) version of the 470 mm size-12 set: a stainless rail fixed from below, two long carriages, high (H) accuracy. Preload B removes internal play by biasing the balls slightly, so the carriage moves with less slop than the free A grade, without the higher running drag and friction the medium C grade brings.
That slight bias helps when a small reversing load would otherwise rock the carriage at each direction change. The balls are ISO 3290 grade G10, Japanese made, held by the retention design; the double-lip seal keeps grease in and swarf out, and the outer cover shields the seal strip. Keep ambient temperature at or below 80 C, peaks to 100 C. Cost-wise, an LRM set is priced mainly by rail length and carriage count rather than rail width, so trimming travel is the first lever on budget. No load or moment rating is published for LRM - ask us and we will confirm it for this exact code.
Airtac LRM Miniature Linear Guide LRM12L2X470S10BHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X470S10BHT |
|---|---|
| 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 | 470 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 LRM12L2X470S10BHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X470 | 2 carriages on a 470 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, 470 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 LRM12L2X470S10BHT Is Used
High-cycle dispensing slide
A micro-dispenser cycling a 200 mm stroke once per second covers the 100 km re-grease distance in roughly three weeks of continuous running, so light preload and scheduled greasing keep the motion repeatable.
Fixture rebuild with carriage swap
Upgrading an ageing fixture slide to a preloaded set suits a maintenance shop, provided swaps are done carefully with a dummy rail - only a few carriage-only options exist, so spares are usually special orders.
Benchtop metrology gantry
A small measuring gantry benefits from light preload, which firms the carriage against reversals without the running drag that a medium preload would add to a sensitive probe head.
Is the Airtac LRM Miniature Linear Guide LRM12L2X470S10BHT the Right Guide?
Preload B firms up the motion but does not raise any published capacity - LRM lists no ratings at all, so a genuinely loaded or cantilevered duty belongs on LSH, whose per-carriage dynamic, static and moment tables you can size against. If the travel is short and you need crossed-roller rigidity, that is LGC territory. Before ordering, tick off: complete set, 12 mm rail, long carriage, two blocks, 470 mm, preload B, accuracy H, bottom-mount - and let us confirm the load rating for this exact SKU.
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 LRM12L2X470S10BHT FAQ
Rail width 12 mm, rail length 470 mm, two long carriages, light preload (grade B), high accuracy (grade H), bottom-mount fixing. Torque M2 screws to 58.8 N.cm in steel, 39.2 N.cm in cast iron, 29.4 N.cm in aluminium; M3 screws to 196 N.cm, 127 N.cm and 98 N.cm in those materials. Ambient limit is 80 C with peaks to 100 C; re-grease every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for the LRM series - we confirm them for this model on request.
Pick LRM when the envelope is tight, the duty is light and you want smooth, accurate travel on a 12 mm rail with a small footprint. Pick LSH when the load is heavy or overhung: LSH publishes per-carriage dynamic, static and moment ratings you can size against, while LRM has none in the catalogue. The honest middle path is to send us this code with your load case, and we will confirm the ratings for the exact model before you 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 LRM12L2X470S10BHT
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.