Airtac LRM Miniature Linear Guide LRM12L1X145S10BH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X145S10BH 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 length145 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 LRM12L1X145S10BH
This LRM12L1X145S10BH set pairs a 12 mm wide, 145 mm long stainless-steel rail with a single long carriage, and the B in the code sets a light preload: the balls are deliberately pre-stressed so the clearance is taken out of the motion. You receive the assembled, pre-greased rail-and-carriage set, cut with a 10 mm end-hole offset and finished for top-mount fixing.
Light preload is the middle path on LRM: firmer than grade A (none) against play and vibration, yet with less drag and heat than grade C (medium). Inside the carriage, recirculating balls graded ISO 3290 G10 and made in Japan are retained so they stay put during handling, behind a double-lip seal and an outer cover that keeps grit off the seal strip. Keep the ambient at or below 80 C, peaks 100 C. There is no published load rating for LRM - we will confirm what this exact preload and carriage combination can take when you send the RFQ.
Airtac LRM Miniature Linear Guide LRM12L1X145S10BH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X145S10BH |
|---|---|
| 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 | 145 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 LRM12L1X145S10BH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X145 | 1 carriage on a 145 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, 145 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 LRM12L1X145S10BH Is Used
Adhesive micro-dispensing head
A benchtop dispenser laying adhesive dots on electronics boards rides on this set; the light preload stops the needle chattering at stroke reversal without the drag of grade C.
Fibre-to-photodiode alignment
Aligning a fibre coupler to a photodiode calls for motion free of stick-slip; the light preload and the long carriage keep the coupler square to the axis throughout the short travel.
High-cycle sorting slide
A benchtop part-sorting slide cycling continuously covers 100 km of travel in roughly three weeks, so the re-grease interval binds before the calendar does - plan grease access into the frame.
Is the Airtac LRM Miniature Linear Guide LRM12L1X145S10BH the Right Guide?
Preload is the decision that shapes this SKU. Grade B removes perceptible play, which helps any tilting or vibrating element, and the long carriage extends the bearing span to help further - but preload adds running drag, so check your drive has the margin for it. The rest of the checklist: complete set form, 12 mm rail width, long carriage, one carriage, 145 mm rail length, accuracy H, top-mount fixing. If the load is heavy or overhung, move up to LSH, which publishes dynamic, static and moment ratings per carriage - LRM publishes none. Short travel and crossed-roller rigidity point to LGC instead. 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 LRM12L1X145S10BH FAQ
The set is a 12 mm wide by 145 mm long stainless rail carrying one long carriage with light preload (grade B) and high accuracy (grade H), top-mounted through a 10 mm end-hole offset. Torque M2 screws to 58.8 N.cm in steel, 39.2 in cast iron, 29.4 in aluminium, or M3 screws to 196, 127 and 98 N.cm respectively. Factory grease is Kyodo Yushi PS No. 2; re-grease every 100 km of travel or every 3 to 6 months and do not mix lubricant types. Ambient limit is 80 C with 100 C transients. Dynamic, static and moment load ratings are not published for the LRM series - we confirm them per model on enquiry.
Exactly the rail and the carriage, assembled, pre-greased with Kyodo Yushi PS No. 2 and ready to bolt down: one 145 mm stainless rail and one long carriage, nothing else in the box. Screws are not part of the set, so order M2 or M3 cap screws to suit your tapped holes. If you were after a replacement carriage alone, that is a different code shape (LRM12BK-...) carrying a pairing letter that must match the rail, and only a few carriage-only parts are listed - most spares are a special order, so ask us first.
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 LRM12L1X145S10BH
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.