Airtac LRM Miniature Linear Guide LRM12L2X370S10CP
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X370S10CP is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriages. 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
- Carriages2
- Rail length370 mm
- AccuracyP — precision 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 LRM12L2X370S10CP
This LRM12L2X370S10CP is a complete miniature linear guide set: one 370 mm stainless-steel rail, 12 mm wide, carrying two long (L) recirculating-ball carriages. The rail is drilled for top mounting with a 10 mm end-hole offset, and the set arrives as a matched pair of carriages on a single rail - there is nothing else to order to put it to work.
Two configuration choices define this SKU. The long carriage stretches the ball circuit over a longer footprint, so any tipping or cantilevered component sees a wider bearing span along the travel. Medium preload (grade C) removes play in the ball circuit for the stiffest feel LRM offers, with the trade-off that installation surfaces need to be true - grind or finish-mill the mounting face before bolting down. Precision (P) accuracy grade tightens height and width tolerances for a stage that must stay level over the stroke. Inside each carriage, the balls are ISO 3290 G10 grade (Japanese made) - a ball-only grade, not an assembly standard - held by the ball-retention design and wiped by a double-lip seal under an outer cover. Ambient temperature must stay at or below 80 C, with peaks no higher than 100 C. One thing to settle before ordering: LRM publishes no load or moment ratings, so we confirm the figures for this exact model when you send the RFQ.
Airtac LRM Miniature Linear Guide LRM12L2X370S10CP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X370S10CP |
|---|---|
| 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 | 2 |
| Rail length | 370 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision 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 LRM12L2X370S10CP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X370 | 2 carriages 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. |
| P | P — precision grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 370 mm |
| Carriage | Yes, 2 |
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 LRM12L2X370S10CP Is Used
Compact XY inspection stage
A benchtop optical-inspection fixture where the camera head must hold height and roll across a 370 mm travel - precision grade and medium preload keep the platform settled over the stroke.
Laser marking head positioning
Carrying a small laser focusing module along a part in an electronics workshop; the long carriage gives the head a longer bearing span, and the 80 C ambient limit should be checked near any hot enclosure.
Semiconductor tray indexing
A tray-handling shuttle in a small electronics assembly cell, where two preloaded carriages on one rail resist tipping as the shuttle accelerates and stops at each pocket.
Is the Airtac LRM Miniature Linear Guide LRM12L2X370S10CP the Right Guide?
If the load on this set is substantial or sits on a cantilever, step up to the AirTAC LSH series: it publishes per-carriage dynamic, static and moment ratings you can actually size against, which LRM does not. For short travels where crossed-roller rigidity matters more than stroke length, AirTAC LGC is the better match. This set is the right pick when you need precision-grade travel, a rigid preloaded feel and a 370 mm stroke in a 12 mm rail. Run the checklist: form (complete set), 12 mm rail width, long carriage, 2 carriages, 370 mm rail, preload C (stiffest, least forgiving of imperfect mounting), accuracy P, top-mount rail - and confirm the load rating with us before committing. Worth noting: size 12 dominates the stocked LRM range by a wide margin, so a design built around this rail width is the easiest to source. Because price tracks length and carriage count rather than width, trimming travel before downsizing size usually saves more.
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 LRM12L2X370S10CP FAQ
It is a complete set: 12 mm wide stainless rail, 370 mm long, drilled for top mounting with a 10 mm end-hole offset, carrying two long (L) carriages. Preload is C (medium), accuracy is P (precision). Mounting screws: M3 torques to 196 N.cm in steel, 127 N.cm in cast iron, 98 N.cm in aluminium. Ambient temperature must not exceed 80 C with transient peaks to 100 C. Re-grease every 100 km of travel or every 3 to 6 months - on a 200 mm stroke cycling once a second, 100 km arrives in about three weeks of continuous running, so the distance usually binds first. Load and moment ratings are not published for LRM; we confirm them per model on request.
One 370 mm rail and two long carriages, pre-fitted - it is a complete guide set, not a carriage-only order. The carriages ship pre-filled with Kyodo Yushi PS No. 2 grease; before first use, wipe off the rust-preventive oil and apply lubricant, topping up through the hole at the rear of the carriage. Avoid mixing lubricant types, and never dismantle a carriage - the ball-retention design helps but balls can still drop if the carriage is angled onto a rail or swapped hastily. For field carriage swaps, ask us about carriage-only options, which we hold only a few of.
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 LRM12L2X370S10CP
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.