Airtac LRM Miniature Linear Guide LRM15BK-N-H-C
The AirTAC Airtac LRM Miniature Linear Guide LRM15BK-N-H-C is a miniature linear guide on a 15 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 asCarriage / block only
- SizeLRM15
- Rail width15 mm
- Carriage lengthStandard carriage
- AccuracyH — high grade
- 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 LRM15BK-N-H-C
This code buys one thing: the standard-length carriage of AirTAC's LRM family, sized for a 15 mm stainless-steel rail, graded high accuracy H and matched to rails carrying pairing code C. There is no rail in the box and no preload position in the code - the running feel is set when carriage and rail are ordered together as a set.
Where the long-body variant trades footprint for span, this standard block keeps moving mass and mounted length down, which suits axes that reverse direction often or sit in a cramped envelope. Its balls are Japanese-made and graded ISO 3290 G10 - that grade covers the balls only - held by a ball-retention design that helps but does not guarantee against a dropped ball during a hurried swap. A double-lip seal handles lubrication and dust, and an outer cover protects the seal strip and hides the fixing screws. Ambient temperature must stay at or below 80 C, briefly to 100 C. As with every LRM part, load and moment ratings are not published; give us the pairing code and the duty and we confirm the numbers for your rail.
Airtac LRM Miniature Linear Guide LRM15BK-N-H-C Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM15BK-N-H-C |
|---|---|
| Series | LRM Series Miniature Linear Guide |
| Supplied as | Carriage / block only |
| Construction | Recirculating ball, stainless-steel rail, common-rail design |
| Size code | LRM15 |
| Rail width | 15 mm |
| Carriage length | Standard carriage |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high grade |
| 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, matched by the pairing code |
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. This item is a carriage only. Order a complete set if you also need a rail.
Model Code: Airtac LRM Miniature Linear Guide LRM15BK-N-H-C
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 15 | Size code. |
| BK | Carriage / block only — no rail supplied. |
| N | Standard carriage. |
| H | H — high grade. |
| Pairing code | Rails and carriages must share a pairing code. Take it from the original part when replacing. |
What Is In The Box
| This order | Carriage / block only |
|---|---|
| Rail | No — not supplied with this item |
| Carriage | Yes, one |
This is a carriage on its own. NO RAIL IS INCLUDED. 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 LRM15BK-N-H-C Is Used
Vision inspection fine-adjust axis
Adding a fine-adjust slide to a PCB vision inspection station: the standard-length block keeps the stage shallow while H-grade accuracy holds the camera square to the board.
Belt-driven micro-dispenser slider
A belt-driven slider carrying a syringe barrel on a micro-dispensing unit, where the lighter standard block keeps reversing inertia low on each short settling move.
Laboratory dosing-arm rebuild
Overhauling the guide on a small laboratory dosing arm: the old block is pulled off its rail only when truly necessary, since repeated removal risks losing balls from the retainer.
Is the Airtac LRM Miniature Linear Guide LRM15BK-N-H-C the Right Guide?
Start by checking the code on the part you are replacing: this carriage pairs only with a rail or carriage that also carries code C, and a mismatch will not run true. Because we stock just four carriage-only SKUs in total, a 15 mm standard block is normally a special order - if downtime matters, price a complete 15 mm set alongside it. On sizing: LRM gives you no tabulated load or moment ratings, so confirm capacity with us before committing; LSH publishes per-carriage dynamic, static and moment figures that suit heavier or cantilevered loads, and LGC covers short travel where crossed-roller rigidity is the priority.
Checklist: carriage-only form, 15 mm rail width, standard length, accuracy H, pairing code C, 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 LRM15BK-N-H-C FAQ
It is a standard-length carriage for a 15 mm wide LRM rail, accuracy grade H, pairing code C, with no rail in the supply. Mounting screws for the mating rail are M3, torqued to 196 N.cm in steel, 127 N.cm in cast iron and 98 N.cm in aluminium. The ambient temperature 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. Load and moment ratings are not published for LRM - we confirm them for this block and the rail it will run on.
Swapping the block alone is the minimal fix, but three practical points decide it: your rail must carry the same pairing code C, our carriage-only stock covers just four SKUs so this 15 mm block is likely a special order, and fitting a new carriage demands care because balls can drop if it is offered up skewed - a dummy rail makes the job safe. Weigh that against a complete 15 mm set, which arrives matched, with the preload grade and accuracy fixed at ordering, ready to bolt down.
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 LRM15BK-N-H-C
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.