Airtac LRM Miniature Linear Guide LRM12L1X220S10BPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X220S10BPT 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 length220 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 LRM12L1X220S10BPT
LRM12L1X220S10BPT is a complete miniature linear guide set built around a 12 mm wide stainless-steel rail, cut to 220 mm with the 10 mm end-hole offset. On it rides one long-body recirculating-ball carriage, pre-filled with grease and fitted with a double-lip seal and an outer cover. The trailing T in the code marks a bottom-mount rail: the fixing arrangement suits a frame where you cannot reach the screws from above.
Two details reward attention here. The long carriage spreads its ball contact over a greater length than a standard body, which steadies any tipping component on a single-rail slide. Preload grade B is light, so running drag stays low and the carriage glides easily by hand - the trade-off is a little more compliance than grade C would give. The balls inside are Japanese-made ISO 3290 G10, a grade that applies to the balls alone and not to the guide assembly. Ambient temperature must stay at or below 80 C, with brief peaks to 100 C. Load and moment ratings are not published for LRM; tell us your duty and we will confirm the figures for this exact model before you order.
Airtac LRM Miniature Linear Guide LRM12L1X220S10BPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X220S10BPT |
|---|---|
| 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 | 220 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 LRM12L1X220S10BPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X220 | 1 carriage on a 220 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, 220 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 LRM12L1X220S10BPT Is Used
Optics bench translation stage
A long, lightly preloaded carriage under a small camera-sensor inspection fixture gives a smooth, hand-adjustable slide over a 220 mm travel.
Semiconductor die-bonder slide
The 12 mm rail and long body carry a fine-pitch dispensing head on a short precision stroke inside a compact electronics packaging machine.
Laser module focus carriage
Bottom-mount fixing lets the rail sit flush beneath a plate in a laser-marking head, leaving the optical working surface unobstructed.
Is the Airtac LRM Miniature Linear Guide LRM12L1X220S10BPT the Right Guide?
If your slide carries a substantial or cantilevered load, step up to AirTAC LSH instead: that series publishes per-carriage dynamic, static and moment ratings you can size against, something LRM does not offer. Where travel is short and the job demands crossed-roller rigidity, LGC is the better cross-check. To lock in this set, work the checklist: form (complete set), 12 mm rail width, long carriage, one carriage, 220 mm rail length, light preload B, precision accuracy P, bottom-mount direction - and confirm the load rating 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 LRM12L1X220S10BPT FAQ
Rail width 12 mm, rail length 220 mm with 10 mm end offset, one long carriage, light preload B, precision accuracy P, bottom-mount rail. M2 screws torque to 58.8 N.cm in steel (39.2 in cast iron, 29.4 in aluminium); M3 to 196 N.cm (127 and 98). Keep ambient temperature at or under 80 C and re-grease every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for LRM - we confirm them per model on request.
The stainless-steel rail at 220 mm and one long carriage already running on it, greased with Kyodo Yushi PS No. 2. There is no second carriage, no rail joint and no dummy rail - the manufacturer recommends a dummy rail for safe carriage fitting, since even the ball-retention design can drop balls if the carriage is angled onto the rail or swapped hastily.
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 LRM12L1X220S10BPT
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.