Airtac LRM Miniature Linear Guide LRM12L2X370S10AH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X370S10AH 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
- AccuracyH — high grade
- PreloadA — no 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 LRM12L2X370S10AH
LRM12L2X370S10AH is a complete miniature guide set: one 12 mm wide stainless steel rail, 370 mm long with a 10 mm end-hole offset, carrying two long recirculating-ball carriages with no preload (grade A) at high accuracy H, fixed from the top. The catalogue's full-length rail for size 12 is 1005 mm, so 370 mm leaves room to lengthen travel later without changing series. The set arrives assembled and pre-greased.
Preload A leaves the ball set free of pre-applied load, giving the freest-running, lowest-drag slide of the three LRM grades - well suited to hand-assisted or lightly driven motion where smoothness matters more than millimetre-level rigidity. The long carriages widen the bearing span between the two blocks, steadying any tipping of the carried part. Japanese ISO 3290 G10 balls run behind double-lip seals under an outer cover. Keep ambient temperature at or below 80 C, with peaks no higher than 100 C, and hold the carriage when fitting on an inclined rail - it can slide under its own weight. Load and moment ratings are not published for LRM: raise an RFQ and we will confirm the figures for this exact set.
Airtac LRM Miniature Linear Guide LRM12L2X370S10AH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X370S10AH |
|---|---|
| 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 | H — high grade |
| Preload grade | A — no 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 LRM12L2X370S10AH
| 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. |
| A | A — no 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, 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 LRM12L2X370S10AH Is Used
Connector burn-in carriage
A test head shuttling along a row of cable connectors on a harness bench; the 370 mm rail covers several connector positions in one stroke.
Tray-to-tray transfer arm
A light pick-and-place arm spanning two component trays, guided by two long carriages that resist tipping as the arm reaches out.
Sample shuttle between analyzers
Moving a sample rack between two benchtop analyzer stations on a low-friction preload-free slide, where minimal drag keeps the drive motor small.
Is the Airtac LRM Miniature Linear Guide LRM12L2X370S10AH the Right Guide?
Because the listed price range (roughly $66 to $831) is driven by rail length and carriage count rather than rail width, a 370 mm two-carriage set sits toward the upper end of the span - worth checking whether a shorter rail meets the real stroke. If the load is substantial or cantilevered, choose LSH instead: it publishes per-carriage dynamic, static and moment ratings you can calculate with, which LRM does not. For short travel where crossed-roller rigidity is the priority, LGC is the cross-over option. Before ordering, confirm: complete-set form, 12 mm rail width, long carriage, two blocks, 370 mm rail, no preload A (freest running, least rigid), accuracy H, top-mount direction - and ask us to confirm the load rating for your duty.
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 LRM12L2X370S10AH FAQ
This set specifies a 12 mm wide stainless steel rail, 370 mm long with a 10 mm end-hole offset, two long carriages, no preload (A), high accuracy H, top-mount fixing. Factory grease is Kyodo Yushi PS No. 2, topped up every 100 km of travel or every 3 to 6 months. Ambient temperature must stay at or below 80 C, peaking no higher than 100 C. M2 screws: 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium; M3 screws: 196, 127 and 98 N.cm. Basic dynamic and static load ratings and moment ratings are not published for LRM - we confirm them per model on request.
Yes - rail and both long carriages arrive assembled and greased as one unit. Preload A means the balls carry no pre-applied load, so the slide runs with the lowest drag of the three LRM grades (A none, B light, C medium), at the cost of the least rigidity against play and vibration. If your motion is hand-positioned or lightly driven, that freeness is a benefit; for stiff, reversing servo motion consider grade B or C, or step up to LSH, whose published ratings support proper sizing.
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 LRM12L2X370S10AH
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.