Airtac LRM Miniature Linear Guide LRM12L1X245S10CH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X245S10CH 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
- PreloadC — medium 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 LRM12L1X245S10CH
LRM12L1X245S10CH is a complete set in the AirTAC LRM miniature range: a 245 mm stainless-steel rail, 12 mm wide, carrying one long carriage, preloaded to grade C - the medium, stiffest option offered on this series - with high accuracy and top-mount fixing.
Medium preload is the deliberate trade here. It removes free play and stiffens the guide against applied moments, which suits positioning work that cannot tolerate drift; the cost is higher running friction and less forgiveness if the mounting face is not flat, so grind or finish-mill the seat. Inside the carriage, ISO 3290 G10 Japanese balls recirculate behind a double-lip seal, with an outer cover shielding the seal strip, and the ball-retention feature helps keep balls seated during careful handling. The ambient ceiling is 80 C, with 100 C transients allowed. AirTAC publishes no load or moment ratings for LRM; ask us with your RFQ and we will confirm the figures for this exact code.
Airtac LRM Miniature Linear Guide LRM12L1X245S10CH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X245S10CH |
|---|---|
| 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 |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high grade |
| Preload grade | C — medium 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 LRM12L1X245S10CH
| 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. |
| C | C — medium 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 LRM12L1X245S10CH Is Used
Laser diode alignment fixture
Aligning a laser diode to a fibre coupler demands zero play; the medium preload of this set holds the adjustment carriage firmly against vibration on the optics bench.
Wire-bond inspection slide
A semiconductor wire-bond station uses this preloaded guide to traverse a microscope over bond pads, where any clearance would blur the inspection image.
Micro-dispensing head slide
On an electronics packaging line, a micro-dispensing head for underfill runs along this 12 mm rail; the C preload keeps the needle path repeatable pass after pass.
Is the Airtac LRM Miniature Linear Guide LRM12L1X245S10CH the Right Guide?
Choose by what you can verify. LRM gives you no published dynamic, static or moment ratings, so if the load is real rather than incidental, step up to LSH, where those numbers are tabulated per carriage and you can size with confidence. Where the stroke is short and crossed-roller rigidity is the priority, LGC is the cross-series alternative. For this SKU, check the form (complete set), the 12 mm rail width, the long carriage, single-carriage count, the 245 mm rail length, preload C - rigid but demanding of a well-machined mounting face - accuracy H, top-mount direction, and confirm the load rating with us before you commit.
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 LRM12L1X245S10CH FAQ
This set uses a 12 mm wide, 245 mm long stainless rail with one long carriage, medium preload C, high accuracy H and top-mount rail. 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. Keep ambient temperature below 80 C, transients to 100 C, and re-grease every 100 km of travel or every 3 to 6 months. AirTAC publishes no load or moment figures for the LRM series - we confirm them for your model on request.
Use LRM when the envelope is tight and the duty is light; use LSH when you need published numbers to size against. LSH carries a full table of dynamic, static and moment ratings per carriage, while LRM has none - its capacity is confirmed model by model through us. If you are unsure which side of that line your application falls on, send the load, stroke and mounting sketch with your enquiry and we will steer you to the right series.
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 LRM12L1X245S10CH
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.