Airtac LRM Miniature Linear Guide LRM12L2X295S10BHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X295S10BHT 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 length295 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 LRM12L2X295S10BHT
The trailing T in LRM12L2X295S10BHT is the whole story of this SKU: it is a bottom-mount LRM12 set, so the screws pass through the rail into the mounting base from underneath, leaving the top surface clean for covers, guards or workpiece clamps. You get a 295 mm stainless rail, 12 mm wide, with two long carriages, light preload B and high accuracy H.
Handle this set with care before it is bolted down: the ball-retention design helps, but presenting a carriage onto the rail at an angle or swapping it hastily can still drop balls - a dummy rail makes safe carriage fitting far easier - and on an inclined rail a free carriage can slide off under its own weight, so hold it. Ball grade is ISO 3290 G10, Japanese made, applying to the balls in the carriages; the assembly carries no separate accuracy standard. The double-lip seal and outer cover keep the raceway clean, and ambient temperature must stay at or below 80 C with peaks no higher than 100 C. Because two carriages share one rail, set the datum face on the same side for both to get the best running accuracy. Load and moment ratings are not published for LRM; send the RFQ and we confirm the figures for this exact configuration.
Airtac LRM Miniature Linear Guide LRM12L2X295S10BHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X295S10BHT |
|---|---|
| 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 | 295 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 LRM12L2X295S10BHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X295 | 2 carriages on a 295 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, 295 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 LRM12L2X295S10BHT Is Used
Slim metrology jig, underside fixing
A measuring jig built on a thin baseplate where the top face must stay unbroken for the workpiece: bottom-mount screwing hides the fasteners, and the two long carriages hold a gauge head square along the stroke.
Field-maintained laboratory fixture
A laboratory fixture whose carriage is replaced on site during service visits. Plan the swap with a dummy rail, work slowly to the marked orientation, and wipe and re-grease before return to service.
Alignment slide under a machine table
A fine-adjustment slide fitted beneath a small machine table, where reach from above is impossible and the bottom-mount rail is the only practical way to bolt the guide down.
Is the Airtac LRM Miniature Linear Guide LRM12L2X295S10BHT the Right Guide?
If the load is heavy or overhung, this is the wrong series to size against - step up to LSH, which publishes per-carriage dynamic, static and moment ratings; LRM publishes none of them. For short travel demanding crossed-roller rigidity, go across to LGC. For this bottom-mount set, confirm: complete set form, 12 mm rail, long carriage, two per rail, 295 mm length, preload B (light interference - a little more drag than A, less than C), accuracy H, bottom-mount screwing, and a ground or finish-milled mounting surface to achieve the rated travel accuracy. Then confirm the load rating with us for this model before ordering.
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 LRM12L2X295S10BHT FAQ
Rail width 12 mm, rail length 295 mm, two long carriages, light preload (B), high accuracy (H), bottom-mount rail (the trailing T in the code). M3 screw torque: 196 N.cm into steel, 127 into cast iron, 98 into aluminium; M2 screws: 58.8 / 39.2 / 29.4 N.cm. Ambient temperature limit 80 C, transient peaks 100 C. Re-grease every 100 km or every 3 to 6 months. Load and moment ratings are not published for LRM - we confirm them per model via RFQ.
Do not strike or drop the rail - accuracy and life can suffer with no visible damage. Fit carriages slowly and square to the rail; the ball retainer helps but a hurried or angled fit can still drop balls, so a dummy rail is worth having. Do not dismantle the carriages or separate them from the rail unless necessary. Bolt to a ground or finish-milled surface, orient both carriages' datum to the same side, and never exceed 80 C ambient. Full load data for this model comes with the RFQ.
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 LRM12L2X295S10BHT
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.