Airtac LRM Miniature Linear Guide LRM12L1X370S10BH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X370S10BH 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 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 LRM12L1X370S10BH
This is a complete LRM12 set: one 370 mm stainless-steel rail, 12 mm wide, carrying a single long (L) recirculating-ball carriage shipped as a matched pair. The S10 code puts the end mounting holes 10 mm in from each rail end, the H suffix is the high accuracy grade, and with no trailing letter the rail fixes from the top.
The long carriage is the point of this configuration: it spreads the rolling contact over a longer footprint and pushes the bearing span apart, which steadies any tipping or cantilevered part sitting on the carriage - and long carriages are carried here as widely as standard ones, so this choice costs nothing in availability. Inside, the carriage runs on Japanese ISO 3290 G10 balls - a grade for the balls alone, not an assembly standard - held by a ball-retention design behind a double-lip seal and an outer cover, and ambient temperature must stay at or below 80 C. Where a load figure would normally sit, none is published for LRM; send the RFQ and we confirm the rating for this exact code.
Airtac LRM Miniature Linear Guide LRM12L1X370S10BH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X370S10BH |
|---|---|
| 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 | 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 LRM12L1X370S10BH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long 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 LRM12L1X370S10BH Is Used
Laser alignment fixture
A bench-top laser alignment slide benefits from the long carriage: the extended footprint damps the pitching that short blocks transmit into the beam path.
Optical camera inspection slide
Moving a small inspection camera over a workpiece along a 370 mm stroke suits this set - high accuracy grade, one long carriage, top screws for a straightforward build.
Compact pick-and-place head
A light guide under a small vacuum head; the long block lengthens the bearing span, which helps when the grip point sits off-center from the carriage.
Is the Airtac LRM Miniature Linear Guide LRM12L1X370S10BH the Right Guide?
Choose LRM12 when envelope size and smoothness matter more than raw capacity; if the load is substantial or hangs off on a cantilever, step up to LSH, which publishes dynamic, static and moment ratings per carriage you can size against - LRM gives you no such table, so capacity here is verified model by model with us. For very short travel needing crossed-roller rigidity, LGC is the better fit. Before ordering, tick off: set versus carriage only, 12 mm rail width, long carriage, one block, 370 mm rail, preload B (light - the easiest to slide onto the rail, the least stiff), H accuracy, top-mount direction, and a load rating confirmed with us first.
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 LRM12L1X370S10BH FAQ
Rail width 12 mm, rail length 370 mm, one long carriage, preload B (light), accuracy H (high), top-mount rail, end holes offset 10 mm. M3 mounting screws torque to 196 N.cm in steel, 127 N.cm in cast iron and 98 N.cm in aluminium. Ambient temperature must not exceed 80 C with peaks to 100 C; re-grease every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM - we confirm them for this exact model before you order.
It is the complete set: one stainless-steel rail 370 mm long plus one long carriage fitted to it and pre-filled with Kyodo Yushi PS No. 2 grease. No pairing code applies to a set; if you later need a replacement carriage alone, that is ordered by its own BK code, and most carriage-only codes are made to order rather than carried.
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 LRM12L1X370S10BH
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.