
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X95S10BHT 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.
The LRM12L1X95S10BHT is a complete AirTAC miniature guide: a 12 mm wide stainless-steel rail cut to 95 mm, carrying one long recirculating-ball carriage, with the trailing T in the code signalling bottom-mount fixing. Rail and carriage arrive as a matched pair; bolt them to a ground or finish-milled surface or the travel accuracy will suffer.
Preload B puts a light internal load on the ISO 3290 G10 Japanese balls - a grade that applies to the balls alone, not to the guide assembly. The point of that light preload is repeatability: it takes the slop out of the carriage without the running-resistance penalty of a heavier grade, and LRM offers nothing stiffer in any case. The ball-retention design keeps the balls captive during handling, but the maker is explicit that seating the carriage at an angle or swapping it hastily can still drop balls - keep a dummy rail on the bench for carriage changes. Ambient limit is 80 C, peaks 100 C. Load and moment ratings are not published for this series; request the RFQ and we confirm the figure for this exact code.
| Model | Airtac LRM Miniature Linear Guide LRM12L1X95S10BHT |
|---|---|
| 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 | 95 mm (spliced sections) |
| 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.
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X95 | 1 carriage on a 95 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. |
| This order | Complete guide set |
|---|---|
| Rail | Yes, 95 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.
A small gantry pick-and-place shifting SMD trays between feeder and test fixture; the long carriage spreads the carrying load over a longer row of balls for steadier motion.
Fine adjustment of a glue or solder-paste needle above a small PCB, where light preload removes play so the bead lands in the same place every cycle.
A short-travel slide carrying a photodiode or filter holder on a laboratory optical bench, with screws underneath keeping the optical axis height low.
If the duty is heavier than the slim envelope suggests - a real mass, or an arm that tips - step up to LSH, the only one of the two that lists dynamic, static and moment ratings per carriage, giving you numbers to calculate with rather than assumptions. Where travel is short and you need crossed-roller stiffness rather than ball smoothness, LGC is the alternative. Checklist for this code: complete set (rail included), 12 mm rail width, long carriage, single block, 95 mm rail length, preload B light - expect slightly more running resistance in exchange for reduced play - accuracy H high, bottom-mount rail. Replacing one carriage instead of buying a set? That is a carriage-only code with a pairing letter that must match your rail, and only a few such items are listed - route it through the RFQ. Confirm the load rating with us before committing.
Quick checklist
12 mm rail width; 95 mm rail length; one long carriage; 10 mm end-hole offset; preload B (light); accuracy H (high); bottom-mount rail, marked by the trailing T. Screw torque per the catalogue: M2 at 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium; M3 at 196, 127 and 98 N.cm. Keep ambient temperature under 80 C, peaks 100 C. Re-lubricate every 100 km of travel or every 3 to 6 months - for scale, a 200 mm stroke cycled once a second covers 100 km in roughly three weeks of continuous running, so the distance binds before the calendar. Load and moment ratings are not published for LRM; we confirm them per model on request.
This code is a complete set: the 95 mm stainless rail and one long carriage come together as a matched pair, with no second block and no separate rail in the box. Carriage-only spares exist under codes of the LRM12BK-... form, where a pairing letter (A to E) must match between the replacement carriage and your existing rail - read it off the original part before ordering. Only a small handful of carriage-only items are listed, so most spare carriages are a special order; ask through the RFQ.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
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.