Airtac LRM Miniature Linear Guide LRM12L1X70S10AP
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X70S10AP 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 lengthLong carriage
- Carriages1
- Rail length70 mm
- AccuracyP — precision grade
- PreloadA — no 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 LRM12L1X70S10AP
LRM12L1X70S10AP is the precision-grade version of the 70 mm long-carriage set: a 12 mm stainless rail, one long (L) carriage, preload A, and P-grade accuracy for tighter travel tolerances than the standard H build. It is a complete set - rail and carriage ship assembled and pre-greased - in a plain finish with 10 mm end-hole offsets for the fixing screws.
Where the extra grade pays off: any layout where the carriage position itself is part of the measurement, because the P build tightens the tolerances the guide can hold. Note that very long two-section spliced rails are restricted to H grade, so a single-piece 70 mm rail is the easy way to keep precision - no joint to align and match. The Japanese-made balls are graded ISO 3290 G10 (that grade covers the balls only), the double-lip seal plus outer cover keep contamination down, and ambient temperature must not exceed 80 C. No dynamic, static or moment rating is published for LRM; the confirmed figure for this model comes back with your RFQ.
Airtac LRM Miniature Linear Guide LRM12L1X70S10AP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X70S10AP |
|---|---|
| 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 | 1 |
| Rail length | 70 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision grade |
| Preload grade | A — no 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 LRM12L1X70S10AP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X70 | 1 carriage on a 70 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| A | A — no 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 LRM12L1X70S10AP Is Used
Semiconductor back-end inspection
At an IC inspection bench, the P grade supports a positioning axis where carriage placement feeds directly into measurement repeatability, and the small 12 mm rail fits the crowded fixture plate.
Laser collimation jig
An optics workshop jig slides a laser module toward a collimating lens in fine increments; the drag-free preload A motion makes hand setting predictable while the P grade holds the line of travel.
Probe-card alignment slide
A wafer-level test rig uses the axis for the coarse approach of a probe card toward the wafer; the short 70 mm travel matches the move, and precision grade keeps the approach repeatable.
Is the Airtac LRM Miniature Linear Guide LRM12L1X70S10AP the Right Guide?
Because P-grade accuracy is the point of this SKU, decide first whether the guide sits in the measuring chain; if it only carries the payload, H grade is cheaper and equally well stocked. If the load is heavy or overhung, neither grade rescues LRM - step up to LSH, whose published dynamic, static and moment ratings per carriage make sizing straightforward, or to LGC for short-travel crossed-roller stiffness. Checklist: complete-set form, 12 mm rail width, 70 mm rail length, one long carriage, preload A (no running drag, least added rigidity), accuracy P, top-mount. We confirm the load rating for this model with the RFQ.
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 LRM12L1X70S10AP FAQ
Published for this SKU: 12 mm rail width, 70 mm rail length, one long carriage, 10 mm end offsets, preload A (none), P-grade (precision) accuracy, top-mount rail. Torque figures: M2 screws 58.8 N.cm in steel, 39.2 N.cm in cast iron, 29.4 N.cm in aluminium; M3 screws 196, 127 and 98 N.cm. Ambient ceiling 80 C with 100 C transient peaks. Re-grease interval 100 km of travel or 3 to 6 months, using Kyodo Yushi PS No. 2. What the catalogue omits is any load, moment or running-parallelism figure - for LRM these are confirmed per model, and we return them with your RFQ.
One complete assembled axis: a 70 mm stainless-steel rail carrying a single long P-grade carriage, greased and sealed, plain finish. Spares are the weak point - only four carriage-only SKUs sit in our stock, so a replacement usually means ordering the carriage that matches the pairing code letter of your original rail. Never swap a carriage by forcing it onto the rail at an angle; ball retention helps, but a square, deliberate fit is what keeps the G10-grade balls in place.
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 LRM12L1X70S10AP
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.