Airtac LRM Miniature Linear Guide LRM12N1X70S10BPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X70S10BPT is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriage. 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
- Carriages1
- Rail length70 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 LRM12N1X70S10BPT
The LRM12N1X70S10BPT pairs a precision-grade P carriage with a 70 mm, 12 mm wide stainless-steel rail drilled for bottom-fixing - the screws enter from underneath the base, which suits frames where the top of the rail must stay clear. One standard-length recirculating-ball carriage ships fitted to the rail. With a single carriage, either side of the rail can serve as the datum face; if you later add more carriages, put the datum on the same side for each one to hold running accuracy.
Installation quality decides how well the P grade pays off: the mounting surface should be ground or finish-milled, and the rail must never be struck or dropped, since accuracy can suffer with no visible mark. Inside, the carriage runs on Japanese-made ISO 3290 G10 balls - the grade covers the balls only - retained against fallout by the ball-retainer design, with a double-lip seal and an outer cover completing the dust path. Keep ambient temperature at or under 80 C, brief peaks to 100 C. As with every LRM model, load and moment ratings are not published; ask us and we will confirm the figures for this exact SKU.
Airtac LRM Miniature Linear Guide LRM12N1X70S10BPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X70S10BPT |
|---|---|
| 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 | 1 |
| Rail length | 70 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 LRM12N1X70S10BPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X70 | 1 carriage on a 70 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, 70 mm |
| Carriage | Yes, 1 |
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 LRM12N1X70S10BPT Is Used
Sensor calibration bench slide
A calibration bench that sweeps a proximity or vision sensor across a reference target uses the precision P grade and hidden bottom-fixing to keep the working surface flat and free of hardware.
Micro dispensing head slide
In a small glue or solder-paste dispenser, the 70 mm rail drives the needle across a PCB datum; bottom-mounting leaves the dispense zone above completely clear of screw heads.
Camera module test rig
A production rig that focuses and shifts a phone camera module over its test fixture gains from the short, precise travel of a 12 mm miniature guide carrying a single P-grade carriage.
Is the Airtac LRM Miniature Linear Guide LRM12N1X70S10BPT the Right Guide?
Before anything else, match the code shape: this is a complete set - rail plus one carriage - not a replacement block. The configuration reads 12 mm rail width, 70 mm length, standard carriage, preload B (light), precision accuracy P, bottom-mount. Light preload is the easiest-running LRM grade but the loosest; step to preload C when a tighter feel matters more than low friction. If your load is heavy or on a cantilever, this is not the series to calculate from - LRM publishes no load tables, whereas the AirTAC LSH series does, and for short travels needing crossed-roller stiffness LGC is worth a quote. Finish the checklist with us: confirm the load rating for this model, and check pairing details only if you are matching a spare carriage to an existing rail.
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 LRM12N1X70S10BPT FAQ
Published: 12 mm rail width, 70 mm rail length, 10 mm end-hole offset, one standard carriage, preload B (light), precision accuracy P, bottom-mount fixing. Installation: grind or finish-mill the mounting surface, keep ambient temperature at or below 80 C with 100 C peaks, and re-grease every 100 km of travel or every 3 to 6 months - on a fast-cycling short stroke the accumulated distance can arrive before the calendar does. Not published for LRM: load ratings, moment ratings and speed limits. We confirm the load and moment figures for this model on request.
The set comprises one 70 mm stainless-steel rail and one standard carriage, factory-filled with Kyodo Yushi PS No. 2 - no second block, no screws, and no black-chrome finish (LRM12 black chrome exists in the catalogue but is not something we stock). Spare carriages are a separate ordering code, and carriage-only stock is thin - only a handful of SKUs - so a later replacement is usually a special order; keep the engraved pairing details from your original set handy when that time comes.
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 LRM12N1X70S10BPT
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.