Airtac LRM Miniature Linear Guide LRM12N1X70S10CH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X70S10CH 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
- AccuracyH — high 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 LRM12N1X70S10CH
Preload grade C is the firmest option AirTAC offers on the LRM miniature series, and LRM12N1X70S10CH combines it with the simplest installation: a top-mount rail whose screws drop in from above on an open frame. The complete set is one stainless-steel rail, 12 mm wide and 70 mm long, with a single standard-length recirculating-ball carriage already fitted.
Medium preload removes internal clearance, which firms up the feel and holds position better under small disturbing forces - but it is the least forgiving grade, so the mounting surface must be ground or finish-milled to the catalogue's per-size requirements before the rail is screwed down. Inside, Japanese ISO 3290 G10 balls - the grade covers the balls alone - run behind a double-lip seal, with an outer cover shielding the seal strip and hiding the screw heads. The ambient limit is 80 C, peaks to 100 C. Because AirTAC publishes no load or moment rating for LRM, describe the duty to us and we confirm the figures for this exact model before you commit.
Airtac LRM Miniature Linear Guide LRM12N1X70S10CH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X70S10CH |
|---|---|
| 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 |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high 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 LRM12N1X70S10CH
| 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. |
| C | C — medium 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, 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 LRM12N1X70S10CH Is Used
Benchtop SMD placer
A prototype pick-and-place placing 0402 passives gains a firmer X axis from preload C, so the head stops without noticeable rock at each placement position.
Connector go/no-go slide
A cable-assembly shop cycles small JST plugs into a test nest; the medium preload keeps the slide from drifting while the operator lines the housing up with the gauge.
Wire-bond work-table trim axis
Adjusting a small hybrid-circuit substrate relative to a wedge bonder needs a compact 12 mm rail that holds its setting - the firm preload resists creep after the operator lets go.
Is the Airtac LRM Miniature Linear Guide LRM12N1X70S10CH the Right Guide?
Check the alternatives before settling on this CH set. Once the load is heavy or overhung, LSH becomes the honest pick: its catalogue lists dynamic, static and moment ratings per carriage, the very data LRM withholds, so the sizing calculation can actually be done. When travel is short and crossed-roller stiffness is the priority, LGC is the better cross-reference. For this SKU the checklist reads: complete set (rail plus carriage), 12 mm rail width, standard carriage, one block, 70 mm rail length, medium preload C with its stricter surface demands, H high accuracy, top-mount mounting direction. Spare-carriage orders would need the pairing code, and we will confirm the load rating for this model on request before the order is placed.
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 LRM12N1X70S10CH FAQ
Configuration: 12 mm wide stainless rail, 70 mm long, one standard carriage, medium preload (C), high accuracy (H), top-mount rail. Torque M2 screws to 58.8 N.cm in steel, 39.2 N.cm in cast iron, 29.4 N.cm in aluminium - M3 takes 196, 127 and 98 N.cm. Ambient must stay at or below 80 C (peaks 100 C), and grease is refreshed every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM; we confirm them per model, so ask us about this one.
Decide by the load data you need. LSH publishes per-carriage dynamic, static and moment ratings, so any axis carrying real weight or a cantilever should be sized there. LRM, including this 12 mm rail on 70 mm, is for tight envelopes and light duty - and since it publishes no ratings, we verify the load figure for the exact model with you before ordering. Short-travel jobs that need crossed-roller rigidity point to LGC instead.
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 LRM12N1X70S10CH
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.