Airtac LRM Miniature Linear Guide LRM12L1X370S10BPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X370S10BPT 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 length370 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 LRM12L1X370S10BPT
Read the trailing T as the defining feature of LRM12L1X370S10BPT: the rail is drilled for bottom-mounting, so the fixing screws enter beneath the 370 mm stainless rail and the top surface stays clear. The set comprises that 12 mm wide rail, one long (L) carriage, light preload (B) and the P precision grade - the tighter of the two accuracy classes offered on LRM.
Because the screws come in from below, the mounting pad must be prepared properly - ground or finish-milled faces with the correct edge distances and chamfers, quoted per size - and the manufacturer warns against striking or dropping the rail, since accuracy and life can suffer without visible damage. The recirculating balls are Japanese-made ISO 3290 G10, a ball-only grade rather than a guide standard, the seal is a double-lip design under an outer cover, and ambient temperature must stay at or below 80 C. No load or moment rating is published for LRM; ask us with the RFQ and we will confirm the figure for this code.
Airtac LRM Miniature Linear Guide LRM12L1X370S10BPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X370S10BPT |
|---|---|
| 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 | 370 mm (spliced sections) |
| 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 LRM12L1X370S10BPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X370 | 1 carriage on a 370 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, 370 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 LRM12L1X370S10BPT Is Used
Under-table XY measurement stage
A granite-based measuring stage often fixes its guides from beneath; bottom-mount keeps the working top face uninterrupted for the full 370 mm travel.
Electronics handler insert station
Precision P grade suits a handler that indexes component trays to a fixed camera; the long carriage steadies the insert head over the whole stroke.
Microscope sample carrier slide
A light-duty sample carrier on a laboratory microscope stage, where bottom-fixing holes let the stage plate stay flush, clean and unobstructed.
Is the Airtac LRM Miniature Linear Guide LRM12L1X370S10BPT the Right Guide?
If the axis carries anything heavy or overhung, compare honestly with LSH, which publishes dynamic, static and moment ratings per carriage that you can design against; LRM provides no such table, so its capacity is confirmed per model through us instead. Where travel is short and crossed-roller rigidity is the priority, LGC takes that slot. For this SKU confirm: complete set form, 12 mm rail width, long carriage, one block, 370 mm rail length, light preload B (a trade of stiffness for easy assembly and free sliding), P precision accuracy, bottom-mount direction, and the load rating checked with us before committing.
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 LRM12L1X370S10BPT FAQ
12 mm stainless rail, 370 mm long, one long carriage, preload B (light), accuracy P (precision), bottom-mount (trailing T), 10 mm end-hole offset. Screw torque: M3 - 196 N.cm steel, 127 N.cm cast iron, 98 N.cm aluminium. Maximum ambient temperature 80 C, peaks to 100 C. Re-lubricate every 100 km of travel or every 3 to 6 months, never mixing grease types. Load and moment ratings are not published for this series; we confirm them per model on request.
Pick LRM when the envelope is tight and the duty is light, as here - a 12 mm rail and long carriage in a precision grade. Pick LSH when the load is significant or overhung, because LSH publishes dynamic, static and moment ratings per carriage you can design against; LRM has no such table, so its capacity is verified with us model by model. For short travel demanding crossed-roller stiffness, LGC is the other alternative to weigh.
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 LRM12L1X370S10BPT
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.