
The AirTAC Airtac LRM Miniature Linear Guide LRM12N1X495S10BH 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.
This set pairs a 495 mm length of 12 mm stainless rail with a single standard carriage - just under half of the 1005 mm full-length rail listed for size 12, long enough for a working axis yet short enough to stay affordable. Preload B is the light grade: clearance is trimmed for steadier motion at a small cost in running drag.
That trade-off has an installation side too - preload forgives a poor mounting face less, so ground or finish-milled seating is the honest requirement. The double-lip seal keeps grease in and grit out, the outer cover hides the fixings and guards the seal strip, and the carriage ships pre-filled with Kyodo Yushi PS No. 2. Balls are ISO 3290 G10, Japanese-made - that grade belongs to the balls, not the assembly. Ambient ceiling: 80 C, transients to 100 C. LRM carries no published load or moment ratings, so we confirm them for this SKU via the RFQ.
| Model | Airtac LRM Miniature Linear Guide LRM12N1X495S10BH |
|---|---|
| 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 | 495 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.
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| N | Standard carriage. |
| 1X495 | 1 carriage on a 495 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, 495 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.
Light preload B steadies the needle path when the head reverses at the start of a bead, without demanding a lapped mounting plate.
A thermal-inkjet coder slides across the face of cartons on a 495 mm axis; the H grade keeps the print line square to the box edge.
The arm shuttles tips between wash station and deck all day; at that pace the 100 km re-grease point arrives within weeks, so plan the top-up access.
Price here tracks length, not width: stocked sets run roughly $66 to $831 across only 12 and 15 mm rails, so a 495 mm single-carriage set sits mid-to-high in that spread while staying on the cheaper, better-stocked width. For serious loads or a cantilever, step up to LSH, whose catalogue lists per-carriage dynamic, static and moment ratings that LRM simply does not publish - we confirm each LRM model individually. Short travel demanding crossed-roller stiffness points to LGC. Match checklist: complete set, 12 mm rail width, standard carriage, one carriage, 495 mm rail, preload B - steadier motion but less forgiving of an imperfect mounting face, accuracy H, top-mount. Confirm the load rating with us before ordering.
Quick checklist
12 mm rail width, 495 mm rail length, 10 mm end offset, a single standard-length carriage, light preload B, H high accuracy, top-mount mounting. Tighten M2 screws to 58.8 N.cm in steel, 39.2 N.cm in cast iron, 29.4 N.cm in aluminium; M3 figures are 196, 127 and 98 N.cm. Ambient ceiling is 80 C, with transients to 100 C. Regrease after every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for the LRM series - ask us and we will confirm them for this model.
The moment LSH's published tables matter to you - they carry per-carriage dynamic, static and moment ratings, none of which exist for LRM. Buy this LRM12 set when a 12 mm miniature envelope, smooth light-duty travel and quick availability (924 of our 988 stocked sets are size 12) outweigh a heavy duty cycle; we will still confirm the load figure for this specific SKU. If your axis is short and stiffness per millimetre is the goal, LGC crossed rollers win. Include the duty cycle in your RFQ and we will sanity-check the choice.
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.