Airtac LRM Miniature Linear Guide LRM12L1X245S10BHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X245S10BHT 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 length245 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 LRM12L1X245S10BHT
This AirTAC LRM12L1X245S10BHT is a complete miniature linear guide set. In the box: one 12 mm wide stainless-steel rail, 245 mm long, with a single long (L) recirculating-ball carriage riding on it. The trailing T in the code means the rail is drilled for bottom-mount fixing - the screws pass up through the base - so the top face of the rail stays clear for the moving table. The carriage arrives pre-filled with Kyodo Yushi PS No. 2 grease.
The long carriage is the defining feature here: it spreads contact over more balls and stretches the bearing span, which helps any light cantilever or small vertical mast resist tipping. Inside it run Japanese ISO 3290 G10 balls - that grade applies to the balls alone, not to the assembly - held by a ball-retention design, sealed by a double-lip wiper and shielded by an outer cover that hides the screw holes and keeps debris off the seal strip. Ambient temperature must stay at or below 80 C, with transient peaks to 100 C. Load and moment figures are not published for LRM; they are confirmed model by model, so send us the RFQ and we will verify the numbers for your installation before you order.
Airtac LRM Miniature Linear Guide LRM12L1X245S10BHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X245S10BHT |
|---|---|
| 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 | 245 mm (spliced sections) |
| 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 LRM12L1X245S10BHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X245 | 1 carriage on a 245 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, 245 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 LRM12L1X245S10BHT Is Used
Flat-panel inspection stage
A bottom-fixed 12 mm rail under a small camera or sensor plate leaves the top surface unbroken for the fixture plate, and the 245 mm rail gives a compact scan stroke for glass or film samples.
Benchtop pick-and-place head
A long carriage under a small suction head gives the tipping moment a longer bearing span, so a light Z-axis gantry on a dispenser or feeder bench tracks cleanly over its 245 mm rail.
Optics rail in a laser laboratory
A light detector or mirror holder glides on the stainless rail; with grade H accuracy and a light preload the motion is smooth, and the 80 C ambient limit sits comfortably above most lab conditions.
Is the Airtac LRM Miniature Linear Guide LRM12L1X245S10BHT the Right Guide?
Pick LRM when a tight envelope and smooth running matter more than raw capacity. If your load is substantial or heavily cantilevered, step up to LSH instead - that series publishes per-carriage dynamic, static and moment ratings you can calculate against, something LRM does not offer. Where the stroke is short and you need crossed-roller rigidity, LGC is the cross-over choice. Before committing, run the checklist: complete set form, 12 mm rail width, long carriage, one carriage, 245 mm rail, preload B (light - freer running and an easier fit, at the cost of stiffness under reversing loads), accuracy grade H, bottom-mount mounting direction. Because LRM load ratings are confirmed per model, talk to 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 LRM12L1X245S10BHT FAQ
Rail width 12 mm, rail length 245 mm, one long carriage, preload B (light), accuracy grade H, bottom-mount rail fixing. Screw torques: M2 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 respectively. 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 the figures for this exact model before you order.
If the duty involves real loads, cantilevers or moments, LSH is the safer pick because its catalogue publishes per-carriage dynamic, static and moment ratings you can size against. LRM has no published load table at all - its strengths are the small 12 mm envelope, smooth light-duty motion and grade H accuracy. If you cannot decide, send the RFQ with the load sketch and we will confirm whether this model carries the duty or point you to LSH.
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 LRM12L1X245S10BHT
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.