Airtac LRM Miniature Linear Guide LRM12N1X220S10BH
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X220S10BH 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 lengthStandard carriage
- Carriages1
- Rail length220 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 LRM12N1X220S10BH
Ordering code LRM12N1X220S10BH breaks down as follows: 12 mm rail width, N for the standard-length carriage, one block on a 220 mm stainless-steel rail, an S10 end-hole offset, preload B (light) and accuracy H (high). Nothing trails the H, so the rail mounts from the top. The box contains the complete pair - rail and carriage as one pre-assembled, pre-greased unit ready to bolt down.
Preload B puts a light internal preload on the balls, so the carriage runs slightly firmer than a free-sliding A-grade unit while removing play - a sensible default for positioning work. The recirculating balls are Japanese-made to ISO 3290 G10 (a ball grade, not an assembly standard) and are held by the retention feature so they stay put during handling; a double-lip seal and an outer cover defend the raceway against swarf and dust. Keep ambient temperature under 80 C, with brief peaks to 100 C. Because LRM publishes no load or moment figures, we verify the numbers for this exact configuration before you commit - raise an RFQ.
Airtac LRM Miniature Linear Guide LRM12N1X220S10BH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12N1X220S10BH |
|---|---|
| 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 | Standard carriage |
| Carriages supplied | 1 |
| Rail length | 220 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 LRM12N1X220S10BH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard 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. |
| H | H — high 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 LRM12N1X220S10BH Is Used
Small pick-and-place head
A desktop pick-and-place gantry moving SMT components between feeders and a bench stencil printer gets repeatable travel from this preloaded 12 mm guide under the head plate.
Cable-driven linear feed
In a belt- or cable-driven dispensing axis on an electronics assembly bench, light preload B removes play so the nozzle returns to the same spot cycle after cycle.
Optical filter slider
A filter slide on a compact test rig benefits from the high-accuracy rail and the damped, chatter-free motion that a light preload gives the carriage.
Is the Airtac LRM Miniature Linear Guide LRM12N1X220S10BH the Right Guide?
A 220 mm rail is a mid-length part in the best-stocked corner of the range - size 12 accounts for 924 of the 988 sets we hold - so availability and price both favour this SKU over longer builds. When the application carries real load or a cantilever, move up to LSH, which publishes dynamic, static and moment ratings per carriage for proper sizing; LRM does not. Short-travel work needing crossed-roller stiffness points to LGC instead. Before ordering, tick off: complete set, 12 mm rail, standard carriage, one block, 220 mm length, preload B with its slightly stiffer feel, H accuracy, top-mount, and a load rating confirmed with us.
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 LRM12N1X220S10BH FAQ
12 mm rail width, 220 mm rail length, one standard carriage, preload B (light), accuracy H (high), top-mount, 10 mm end-hole offset. Torque M3 screws to 196 N.cm in steel, 127 N.cm in cast iron or 98 N.cm in aluminium; M2 screws take 58.8 N.cm in steel. The 80 C ambient ceiling (100 C transient) applies, and re-grease every 100 km of travel or every 3 to 6 months through the lubrication hole at the rear of the carriage. No dynamic, static or moment rating is published for LRM - we confirm values for your model on request.
Choose LRM when the envelope is small and the duty light - this 12 mm guide is selected for smoothness and footprint, not for published load tables. Choose LSH when you need to calculate against real figures: that series publishes per-carriage dynamic load, static load and moment ratings. If you are still unsure, send us the load, speed and envelope and we will size the axis with you.
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 LRM12N1X220S10BH
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.