Airtac LRM Miniature Linear Guide LRM12N1X370S10CH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X370S10CH 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
- 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 LRM12N1X370S10CH
The LRM12N1X370S10CH is the firmest variant of this 370 mm family in the stocked list: a complete set built around a 12 mm wide stainless-steel rail, cut to 370 mm with a 10 mm end-hole offset and carrying one standard-length recirculating-ball carriage. The C in the code sets medium preload - internal clearance is removed, so the carriage feels tighter on the rail and resists play under reversing loads better than the light-preload grades. Accuracy is grade H and the rail is top-mount, fixed down through its mounting holes in the conventional way.
Preload is a trade: medium grade C takes the slop out of a reversing axis but asks more of the installation, so a ground or finish-milled mounting surface and careful alignment matter more here than on a light-preload set. The carriage's balls are grade G10 to ISO 3290, Japanese-made for roundness and wear, and a double-lip seal plus an outer cover defend the raceway against dust and chips. Keep the ambient temperature at or below 80 C, with only short peaks to 100 C. One thing this code cannot tell you is capacity: LRM publishes no load or moment ratings, so send the load case and duty cycle through the RFQ and we will confirm the figures for this exact model before you order.
Airtac LRM Miniature Linear Guide LRM12N1X370S10CH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X370S10CH |
|---|---|
| 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 | 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 LRM12N1X370S10CH
| 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. |
| 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, 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 LRM12N1X370S10CH Is Used
Benchtop 3D printer gantry upgrade
Refitting an open-frame printer's X-axis with a recirculating-ball guide; medium preload C takes the reversal play out of fast direction changes at each layer change.
Modular fixture plate slide
A positioning slide that indexes small parts between two operations on a modular T-slot assembly table, where a firm, play-free carriage keeps the stop positions repeatable.
Syringe pump dispensing carriage
A laboratory syringe pump driving a plunger at constant rate; the medium preload holds the carriage steady under the reversing load of each fill-and-dispense cycle.
Is the Airtac LRM Miniature Linear Guide LRM12N1X370S10CH the Right Guide?
Choose deliberately between series. Where the load is significant or reaches out on a cantilever, LSH is the correct step up: it publishes per-carriage dynamic, static and moment ratings you can plug into a calculation, which is precisely the table LRM lacks. Where the travel is short and crossed-roller rigidity is the priority, compare LGC instead. Within this SKU, walk the checklist: complete set, 12 mm rail width, standard carriage, one block, 370 mm rail, 10 mm end offset, medium preload C (rigid but demanding on mounting quality), accuracy H, top-mount fixing. A final cost note: in this range the price scales mainly with rail length and carriage count rather than rail width, so a 370 mm set like this sits well below the longest stocked rails. Then confirm the load rating with us - a per-model confirmation, never a catalogue line.
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 LRM12N1X370S10CH FAQ
Rail width 12 mm, rail length 370 mm with a 10 mm end-hole offset, a single standard-length carriage, preload C (medium), accuracy H (high), top-mount rail. Fixing torques: M2 screws at 58.8 N.cm into steel, 39.2 N.cm into cast iron, 29.4 N.cm into aluminium; M3 at 196, 127 and 98 N.cm. The carriage leaves the factory with Kyodo Yushi PS No. 2 grease; re-grease every 100 km of travel or every 3 to 6 months through the hole at the carriage rear, wiping off the rust-preventive oil and applying fresh lubricant before first use. Ambient temperature must stay at or below 80 C with peaks no higher than 100 C. Basic dynamic, static and moment ratings are not published for LRM - we confirm them for this specific model when you ask.
Pick LRM when the envelope is miniature and the duty is light precision positioning - here a 12 mm rail, 370 mm long, with medium preload for a firm, play-free feel. Pick LSH when the load is heavy or cantilevered, because LSH publishes per-carriage dynamic, static and moment ratings that let you size with confidence; LRM publishes none of these, so its capacity is confirmed per model instead. If short travel and crossed-roller rigidity describe the job better, look at LGC. Send us the load case and we will confirm the rating for this exact SKU before ordering.
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 LRM12N1X370S10CH
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.