Airtac LRM Miniature Linear Guide LRM12L1X120S10CH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X120S10CH 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 length120 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 LRM12L1X120S10CH
The LRM12L1X120S10CH is a complete AirTAC LRM miniature linear guide set: a 12 mm wide stainless steel rail, cut to 120 mm with end-fixing holes offset 10 mm from the ends, carrying one long recirculating-ball carriage that ships assembled on the rail. In the box you get the top-mount rail and its long block, nothing else to configure.
The long carriage lengthens the bearing span and spreads the load over more balls, which helps any axis with a tipping component. Preload C is the medium grade, the most rigid choice on LRM, and the trade-off is higher running resistance plus a demand for a ground or finish-milled seat. Inside run Japanese-made balls graded ISO 3290 G10, a ball-retention design that keeps them from spilling during handling, a double-lip seal for oil scraping and dust exclusion, and an outer cover that shields the seal strip from larger debris. Ambient temperature must not exceed 80 C, with transient peaks no higher than 100 C. Load and moment ratings are not published for this series; send your load case by RFQ and we confirm the figure for this exact model. LRM12 is our deepest-stocked size - 924 of the 988 guide sets we hold - so this configuration typically ships fast.
Airtac LRM Miniature Linear Guide LRM12L1X120S10CH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X120S10CH |
|---|---|
| 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 | 120 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 LRM12L1X120S10CH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X120 | 1 carriage on a 120 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, 120 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 LRM12L1X120S10CH Is Used
Compact XY dispensing stage
A benchtop glue-dispense table built around two of these 12 mm rails gets short, stiff X-Y motion; medium preload C suits the direction changes a rapid XY move creates.
Small pick-and-place head
A long carriage under a lightweight placement head lengthens the bearing span, calming the tipping that comes from a part presented off the axis centerline.
Laser alignment slide
An optics lab trimming a diode beam gets 120 mm of smooth, high-accuracy travel on a rail only 12 mm wide, small enough for a crowded breadboard.
Is the Airtac LRM Miniature Linear Guide LRM12L1X120S10CH the Right Guide?
LRM publishes no dynamic, static or moment ratings, so the deciding number is one you must get from us: send the load, its direction and any cantilever by RFQ and we confirm it for this exact model. If the load is substantial or overhung, step up to LSH instead - that larger series publishes per-carriage dynamic, static and moment ratings you can size against on paper. Where the travel is short and crossed-roller rigidity matters more than reach, LGC is the cross-over option.
Match the code to your drawing before ordering: complete set with rail, one long carriage, 12 mm rail, 120 mm rail length, preload C (medium - stiffest, but higher drag and a less forgiving mounting surface), accuracy H (high), top-mount, plain finish. Black chrome exists in the catalogue but is not stocked; we can order it. If you are replacing one carriage on an existing rail, ask us about carriage-only SKUs - we hold only a handful, so most are special orders.
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 LRM12L1X120S10CH FAQ
Rail width 12 mm, rail length 120 mm, one long carriage, preload C (medium), accuracy H (high), top-mount mounting, plain finish. Screws: M3 at 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminium; M2 at 58.8 / 39.2 / 29.4 N.cm. Ambient temperature limit is 80 C with transient peaks to 100 C. Carriages ship 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 rear of the carriage. Load and moment ratings are not published for LRM - we confirm them per model.
Choose LRM when the job is miniature and light-duty: a 12 mm rail keeps the envelope small, and this set adds a long carriage plus medium preload for stiffness. Choose LSH when the load is substantial or cantilevered, because LSH publishes dynamic, static and moment ratings per carriage and LRM does not - on LRM we confirm the rating for the exact model by RFQ. If travel is short and you need crossed-roller rigidity, LGC is the third option.
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 LRM12L1X120S10CH
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.