Airtac LRM Miniature Linear Guide LRM12L1X445S10BH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X445S10BH 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 length445 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 LRM12L1X445S10BH
This AirTAC LRM set pairs a 445 mm stainless-steel rail, 12 mm wide, with one long carriage mounted from the top. What separates it from the plain version is preload grade B: a light preload that takes the clearance out of the ball circuit, so the carriage seats with less play and returns to position more consistently. It ships greased with Kyodo Yushi PS No. 2.
Light preload trades a little rolling resistance for that tighter feel, which suits axes where backlash shows up in the result. Inside the long carriage, Japanese balls manufactured to ISO 3290 G10 - a grade for the balls themselves, not for the guide assembly - run under a double-lip seal that scrapes oil back and keeps dust out, with an outer cover over the screws and seal strip. Keep the ambient temperature at or under 80 C, allowing brief excursions to 100 C. No dynamic, static or moment load ratings are published for LRM, so send the RFQ and we will confirm the capacity of this exact configuration before you commit.
Airtac LRM Miniature Linear Guide LRM12L1X445S10BH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X445S10BH |
|---|---|
| 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 | 445 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 LRM12L1X445S10BH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X445 | 1 carriage on a 445 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, 445 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 LRM12L1X445S10BH Is Used
Small pick-and-place head
A vertical slide on a light pick-and-place head, where light preload B keeps the head from rocking at the end of a fast down-and-up cycle so the part lands where it was aimed.
Laser focus axis
A manual or motorised focus adjustment on a small laser marker; taking the clearance out of the ball circuit means the focal position repeats when the stage returns to a dial setting.
Benchtop dispensing cell
A glue or solder-paste dispenser traverse on a pilot line, where a 445 mm rail covers the bead length and the long carriage steadies the dispense head against tipping.
Is the Airtac LRM Miniature Linear Guide LRM12L1X445S10BH the Right Guide?
Preload B sits between the free-rolling A grade and the firmer C grade: choose it when play would hurt repeatability but you do not want the extra drag of the medium grade. If your load is heavy or cantilevered, move up to LSH, whose published per-carriage dynamic, static and moment ratings let you do a real sizing calculation - something LRM's catalogue does not offer. For short-travel work needing crossed-roller stiffness, compare LGC. Match on: set versus carriage-only form, 12 mm rail width, long carriage, one block per rail, 445 mm rail length, preload grade with its friction-versus-play trade-off, H accuracy, top-mount fixing, and a load rating confirmed with us. Carriage-only replacements need the pairing code from the existing rail.
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 LRM12L1X445S10BH FAQ
12 mm rail width; 445 mm rail; a single long carriage; preload B (light); accuracy H (high); top-mount rail. Torque the fixing screws to spec: M2 at 58.8 N.cm in steel, 39.2 in cast iron, 29.4 in aluminium; M3 at 196, 127 and 98 N.cm. Maximum ambient is 80 C with peaks to 100 C, and lubrication is refreshed every 100 km of travel or every 3 to 6 months using Kyodo Yushi PS No. 2 through the rear grease hole. Load and moment ratings are not published for the LRM series; we confirm the numbers for this model on request.
Work backwards from your load case. LSH publishes basic dynamic, static and moment ratings per carriage, so if you need to run a real sizing calculation - or the load is cantilevered or substantial - LSH is the series that lets you do it on paper. LRM has no published ratings at all; it is chosen for a small envelope, precision and smooth running in light-duty positioning, with capacity confirmed per model through us. If travel is short and crossed-roller rigidity matters more than travel length, LGC is the third option to compare.
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 LRM12L1X445S10BH
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.