Airtac LRM Miniature Linear Guide LRM12L1X220S10BH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X220S10BH 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
- 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 LRM12L1X220S10BH
LRM12L1X220S10BH is a complete set built around a 220 mm stainless-steel rail, 12 mm wide, with one long carriage carrying light preload (grade B). The L-specification carriage is longer than the standard block, so more recirculating balls share the work along the rail - useful where an overhung head wants a steadier footing.
Preload B takes out the internal play of the unloaded A grade: motion is firmer and more repeatable, at the cost of a little more running drag. The balls inside are Japanese-made and graded ISO 3290 G10, a grade that applies to the balls alone. AirTAC adds a double-lip seal for oil retention and dust exclusion, plus an outer cover over the screw line. Keep ambient temperature at or below 80 C, peaks to 100 C. No load or moment ratings are published anywhere for LRM, so ask us through the RFQ and we will confirm the figures for this exact code before ordering.
Airtac LRM Miniature Linear Guide LRM12L1X220S10BH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X220S10BH |
|---|---|
| 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 |
| 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 LRM12L1X220S10BH
| 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. |
| 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 LRM12L1X220S10BH Is Used
Micro-dosing pump carriage
A production dosing head repeating the same short stroke thousands of times; preload B removes reversal lash from the dispensed volume.
SMT pick-and-place head
A light pick-and-place head moving between feeder and belt on a small assembly machine, guided on a 12 mm miniature rail.
Telescope focuser slide
An astronomy focuser retrofit where the long carriage supports an eyepiece load that tends to tip, with fine, repeatable adjustment.
Is the Airtac LRM Miniature Linear Guide LRM12L1X220S10BH the Right Guide?
If the load is substantial or cantilevered, LSH is the series to size against: it publishes dynamic, static and moment ratings per carriage, none of which exist for LRM. For a short-travel axis where crossed-roller rigidity matters more than compactness, compare LGC.
Match this code to your drawing: complete set, 12 mm rail width, long carriage, one carriage, 220 mm rail, preload B (light - expect slightly more drag than grade A in exchange for no lash), accuracy H, top-mount. If a replacement carriage is ever on the cards, it must carry the same pairing code letter as the rail, and carriage-only parts are mostly special orders. Also weigh the money angle: across the LRM range, rail length and carriage count move the price far more than rail width does. Confirm the load rating with us before you order.
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 LRM12L1X220S10BH FAQ
Rail width 12 mm and rail length 220 mm in stainless steel, one long carriage, preload B (light), accuracy H, top-mount. Screw torques: M2 - 58.8 N.cm steel, 39.2 cast iron, 29.4 aluminium; M3 - 196, 127 and 98 N.cm. The ambient temperature ceiling is 80 C with 100 C transient peaks, and the re-grease interval is 100 km of travel or 3 to 6 months. Load and moment ratings are absent from the LRM catalogue, so we confirm them per model when you enquire.
The set is one 220 mm stainless-steel rail, 12 mm wide, with one long carriage attached and pre-greased with Kyodo Yushi PS No. 2. No extra carriage or screws ship with it. Preload B is the light grade: internal play is removed for firmer, more repeatable motion, in exchange for slightly more running drag than the unloaded A grade. AirTAC publishes no load or moment ratings for LRM, so request the confirmed figures for this model through the RFQ.
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 LRM12L1X220S10BH
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.