Airtac LRM Miniature Linear Guide LRM12N1X370S10BH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X370S10BH 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 length370 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 LRM12N1X370S10BH
LRM12N1X370S10BH is a stocked complete set: a 12 mm wide stainless rail 370 mm long, one standard-length carriage, light preload (grade B) and high accuracy (grade H), fixed from the top. The box contains rail and carriage assembled, pre-greased and ready to mount.
Preload B is the middle path on LRM: enough internal loading to firm up the running feel and suppress play, without the drag of the heavier grade. That makes it a sensible pick for small positioning stages doing reversing moves, where backlash would otherwise show up as lost motion. The carriage circulates ISO 3290 G10 Japanese balls within the retention design, and a double-lip seal plus an outer cover keep grease in and swarf out. Ambient temperature must not exceed 80 C, with brief peaks to 100 C. AirTAC does not publish load or moment ratings for this series, so send us the application and we will confirm the figures for this SKU before you order.
Airtac LRM Miniature Linear Guide LRM12N1X370S10BH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X370S10BH |
|---|---|
| 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 | 370 mm |
| 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 LRM12N1X370S10BH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X370 | 1 carriage on a 370 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, 370 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 LRM12N1X370S10BH Is Used
Laser diode test station axis
Shuttling a diode under a test head in short reversing cycles. Light preload B limits play on direction changes, which is exactly where zero-preload guides can lose position.
Small pick-and-place head slide
Guiding a suction-head gantry over a feeder strip on a desktop assembly cell. The 370 mm stroke covers a wide pick window while keeping the whole unit benchtop-sized.
Connector assembly press feed
Advancing contact strips into a small crimping station on an electronics production line. High accuracy H keeps the strip registered with the dies, and the 80 C ceiling sets the layout away from heated zones.
Is the Airtac LRM Miniature Linear Guide LRM12N1X370S10BH the Right Guide?
Two decisions come before this code. First, ratings: LRM publishes none, so a heavy or cantilevered load belongs on LSH, whose tables list per-carriage dynamic, static and moment figures - for this light-duty LRM12 set, we verify the rating for your case on request. Second, stiffness character: if the travel is short and crossed-roller rigidity is the goal, LGC is the alternative.
For this SKU, verify: complete set form; 12 mm rail width; standard carriage length; one carriage; 370 mm of rail; preload B, the light grade that adds running firmness at the cost of slightly higher drag and a less forgiving fit; accuracy H; top-mount fixing; and our confirmation of the load rating before you commit. One planning note: the 100 km re-grease interval arrives faster than it reads - a 200 mm stroke cycling once a second covers 100 km in roughly three weeks of continuous running, so keep the lubrication side reachable.
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 LRM12N1X370S10BH FAQ
This set pairs a 12 mm wide, 370 mm long stainless rail with one standard carriage, light preload grade B and high accuracy grade H, top-mounted. Fixing torques are 196 N.cm for M3 screws into steel (127 cast iron, 98 aluminium) and 58.8 N.cm for M2 (39.2 and 29.4 respectively). Operating ambient must remain at or below 80 C, peaks 100 C maximum, and the grease should be renewed every 100 km of travel or every 3 to 6 months, whichever comes first. Load and moment ratings are not published for LRM - we confirm the figures for this model on request.
It is a complete, working guide: rail and carriage arrive assembled, pre-filled with Kyodo Yushi PS No. 2 grease, with the light preload set at the factory. Nothing else is included - no fasteners, no second carriage, no lubrication cartridge. Wipe off the rust-preventive oil and lubricate before first use, and never mix lubricants of different types. The carriage can be removed for maintenance, but do it slowly and square to the rail; even with ball retention, careless handling can shed balls.
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 LRM12N1X370S10BH
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.