Airtac LRM Miniature Linear Guide LRM12L1X70S10BH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X70S10BH 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 length70 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 LRM12L1X70S10BH
This LRM12L1X70S10BH ships as one stainless-steel rail, 12 mm wide and 70 mm long, carrying a single long (L) recirculating-ball carriage. Preload grade B applies a light internal preload - enough to remove play under a small off-centre load while keeping running drag low - and grade H accuracy suits general precision motion. The rail mounts from the top; a trailing T in the code would have meant bottom-mount, and this one has none.
The carriage rolls Japanese-made ISO 3290 G10 balls between its raceways, with a double-lip seal and outer cover guarding the track from dust and swarf. Mind the re-grease interval: every 100 km of travel or every 3 to 6 months, whichever comes first. A 200 mm stroke cycling once a second covers 100 km in roughly three weeks of continuous running, so the distance usually binds well before the calendar. Ambient limit is 80 C, peaking briefly at 100 C. Load and moment ratings are not published for LRM; put your load case in the RFQ and we confirm the figure for this exact set.
Airtac LRM Miniature Linear Guide LRM12L1X70S10BH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X70S10BH |
|---|---|
| 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 | 70 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 LRM12L1X70S10BH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X70 | 1 carriage on a 70 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, 70 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 LRM12L1X70S10BH Is Used
Reagent dispensing head
A compact clinical analyzer indexes its dispensing head 70 mm between wells; light preload B removes play so the nozzle lands repeatably on small targets.
Connector test slide
A harness bench slides small connectors into a test fixture, and the long carriage keeps the push-fit head from tipping as it engages the housing.
Small SMT pick-and-place head
One long carriage carries a vacuum nozzle on a 70 mm stroke, and the ball-retention design helps during the occasional careful carriage swap on the bench.
Is the Airtac LRM Miniature Linear Guide LRM12L1X70S10BH the Right Guide?
Long-body LRM12 carriages are stocked here as deeply as standard ones - 512 long-carriage sets against 475 standard - so specifying the long carriage for a tipping load costs nothing in availability. Size 12 is also the heart of this range, with 924 of 988 stocked sets in this width, so a design laid out around a 12 mm rail ships fastest. If your load is substantial or cantilevered, step up to LSH, which publishes per-carriage dynamic, static and moment ratings you can calculate against; LRM publishes none. For very short travels needing crossed-roller rigidity, LGC fits better. Checklist: complete set, 12 mm rail, long carriage, one carriage, 70 mm rail, preload B (light), accuracy H, top-mount, and the load rating confirmed 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 LRM12L1X70S10BH FAQ
Rail width 12 mm, rail length 70 mm, one long carriage, preload B (light), accuracy H (high), top-mount, stainless-steel rail. Fix M2 screws at 58.8 N.cm into steel or M3 at 196 N.cm. Keep ambient temperature at or below 80 C with transient peaks no higher than 100 C. Re-grease after each 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for the LRM series - we confirm them per model before ordering.
LRM wins on envelope: a 12 mm rail, 70 mm long, fits where larger guides cannot. But LSH publishes dynamic, static and moment ratings per carriage while LRM does not, so with a substantial or cantilevered load LSH is far easier to size. Send the load case on an RFQ and we will confirm the rating for this exact LRM set or recommend LSH.
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 LRM12L1X70S10BH
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.