Airtac LRM Miniature Linear Guide LRM12L2X445S10BH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X445S10BH is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriages. 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
- Carriages2
- Rail length445 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 LRM12L2X445S10BH
The LRM12L2X445S10BH is a complete miniature guide set on a 445 mm stainless-steel rail, 12 mm wide, with two long carriages, light preload B and high accuracy H, bolted down from the top. The long carriage body carries the ball circuit over a greater span than a standard block, and having two of them on the shared rail lengthens the effective bearing base for anything the assembly has to hold square.
Preload B is the middle choice: it takes up the internal play a zero-preload carriage has, without adding all the running drag of medium preload C. Accuracy H is the practical grade for most machine building; P remains available when the budget allows. The balls inside are Japanese-made to ISO 3290 G10 - that grade covers the balls only - while a double-lip seal and an outer cover look after the raceway. Keep the surroundings at or below 80 C. Also note the 100 km re-grease interval arrives sooner than it reads: a 200 mm stroke cycling once per second covers 100 km in roughly three weeks of continuous running, so the distance binds before the calendar does. Load and moment ratings are not published for LRM; confirm them with us for this exact model before ordering.
Airtac LRM Miniature Linear Guide LRM12L2X445S10BH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X445S10BH |
|---|---|
| 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 | 2 |
| Rail length | 445 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 LRM12L2X445S10BH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X445 | 2 carriages on a 445 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, 445 mm |
| Carriage | Yes, 2 |
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 LRM12L2X445S10BH Is Used
Wire feed slide on a small bonder
A light-preload carriage on a 445 mm rail guides the wire-feeding head of a compact electronics assembly cell, removing play without the extra drag that would disturb delicate wire tension.
High-cycle parts escapement
In a small parts feeder running continuously, the long carriage spreads the rolling contact over more balls, and maintenance is planned around the 100 km re-grease clock - about three weeks at one cycle per second on a 200 mm stroke.
Label applicator head slide
A labelling head traversing above a compact packaging conveyor runs on this top-mount rail, where high accuracy H keeps the head square to the web without paying precision-grade prices.
Is the Airtac LRM Miniature Linear Guide LRM12L2X445S10BH the Right Guide?
When the load becomes substantial or reaches out on a cantilever, leave the miniature class for LSH - it publishes dynamic, static and moment ratings per carriage, so you can size properly, which no LRM document allows. When travel is short and the priority is crossed-roller rigidity, LGC is the series to compare. Match against this list: set versus carriage only, rail width 12 mm, long carriage, two blocks, 445 mm rail, preload B with its installation trade-off (more preload means tighter seats and more drag), accuracy H, top-mount direction, the pairing code only if replacing a single carriage, and a load rating confirmed with us for this exact SKU.
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 LRM12L2X445S10BH FAQ
Rail width 12 mm, rail length 445 mm, 10 mm end-hole offset, two long carriages, light preload B, high accuracy H, top-mount fixing. M3 mounting screws tighten to 196 N.cm in steel, 127 N.cm in cast iron and 98 N.cm in aluminium. The ambient limit is 80 C with transient peaks to 100 C, and re-greasing is due every 100 km of travel or every 3 to 6 months. Basic dynamic, static and moment load ratings are not published for LRM; we confirm them for this specific model via RFQ.
You receive the full set: one 445 mm stainless-steel rail, 12 mm wide, plus two long carriages already mounted and charged with Kyodo Yushi PS No. 2 grease, ready to bolt to a ground or finish-milled seat. Mounting screws, a grease gun and any brackets come from your side. This is not a carriage-only part, so no pairing code is involved; if you later want a spare carriage alone, be aware that carriage-only availability is thin and most are ordered specially.
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 LRM12L2X445S10BH
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.