Airtac LRM Miniature Linear Guide LRM12L2X245S10BP
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X245S10BP 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 length245 mm
- AccuracyP — precision 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 LRM12L2X245S10BP
This LRM set is the precision-grade (P) version of a two-carriage, long-block layout: a 245 mm stainless-steel rail, 12 mm across, carrying two long recirculating-ball carriages on top-mount fixing. Accuracy P tightens the tolerance between rail and carriage reference edges compared with the H grade.
For a measuring or positioning application, the P grade pays for itself in straightness of travel, provided the mounting seat is ground or finish-milled to match - a P block on a rough seat gives away the grade you paid for. Inside each carriage the recirculating balls are Japanese-made ISO 3290 G10 grade, held by a retention design that limits spillage when the carriage is handled; a double-lip seal scrapes oil and excludes dust, and an outer cover protects the seal strip from larger debris. Ambient temperature must stay at or below 80 C, peaking to 100 C. Load and moment ratings are not published for LRM; we confirm them for this exact configuration through the RFQ before you order.
Airtac LRM Miniature Linear Guide LRM12L2X245S10BP Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X245S10BP |
|---|---|
| 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 | 245 mm |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision 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 LRM12L2X245S10BP
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X245 | 2 carriages 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. |
| P | P — precision grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 245 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 LRM12L2X245S10BP Is Used
Camera module assembly fixture
Locating camera modules relative to a PCB before connector soldering, where the P grade helps the fixture repeat position between batches.
Laboratory autosampler stage
Moving sample vials under a dispensing probe in a lab autosampler, with light preload keeping the stage easy to position without stick-slip.
Custom metrology gauge slide
A hand-moved gauge slide comparing part dimensions against a dial indicator, where the long blocks damp any rocking of the measuring platen.
Is the Airtac LRM Miniature Linear Guide LRM12L2X245S10BP the Right Guide?
Accuracy P suits an axis whose error budget is tight. If the load itself is the hard part - heavy, offset or cantilevered - step up to LSH, which publishes per-carriage dynamic, static and moment ratings to size against; LRM has no published table, so its figures come from us per model. For short travels where crossed-roller rigidity beats ball recirculation, check LGC. Match list: complete set, 12 mm rail width, long carriage, two blocks on a 245 mm rail, light preload B (smoother running than C, with slightly more compliance), accuracy P, top-mount fixing. Confirm the load rating with us before ordering. Stock note: size 12 is the deep end of the range - 924 of the 988 sets we carry - so lead times here are the best the series can offer.
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 LRM12L2X245S10BP FAQ
Rail 12 mm wide by 245 mm long, two long carriages, preload B (light), accuracy P (precision), top-mount rail fixing, 10 mm end-hole offset. Screw torque: M2 at 58.8 N.cm into steel (39.2 cast iron, 29.4 aluminium); M3 at 196 N.cm (127 cast iron, 98 aluminium). Ambient temperature limit 80 C with peaks to 100 C; re-grease every 100 km of travel or every 3 to 6 months. Load, moment and running-parallelism values are not published for LRM - we confirm the ratings for this model via the RFQ.
P grade helps when straightness of travel feeds your measurement or process tolerance; just prepare a ground or finish-milled seat so the grade is not wasted. If the real problem is load rather than accuracy - a heavy or overhung mass you need to check against catalogue figures - choose LSH, which publishes per-carriage dynamic, static and moment ratings that LRM does not. For short travel with crossed-roller rigidity, LGC is the alternative. Either way, tell us the load in the RFQ and we confirm the rating for the model you pick.
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 LRM12L2X245S10BP
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.