Airtac LRM Miniature Linear Guide LRM15L1X190S15AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM15L1X190S15AHT 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 asComplete guide set
- SizeLRM15
- Rail width15 mm
- Carriage lengthLong carriage
- Carriages1
- Rail length190 mm
- AccuracyH — high grade
- PreloadA — no 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 LRM15L1X190S15AHT
LRM15L1X190S15AHT is the bottom-mount version of the 15 mm, 190 mm LRM set: the trailing T in the code means the rail is fixed through its base rather than its top, which suits frames where nothing may stand proud of the running surface or where the screws simply cannot be reached from above. One long carriage travels the rail; the set ships assembled.
Mounting from below changes your install plan: the seat still needs grinding or finish milling, either rail side can serve as the datum, and with more than one carriage the datum should stay on the same side. Bottom fixing also puts the screws where a stripped thread is painful, so torque matters - M3 screws take 196 N.cm in steel, 127 N.cm in cast iron, 98 N.cm in aluminium. Ball retention keeps the balls aboard during handling, but an angled insertion or a rushed swap can still drop them, so work carefully or use a dummy rail. Ambient temperature limit is 80 C, peaks 100 C. As with every LRM code, load and moment ratings are confirmed per model - raise an RFQ and we will confirm this one.
Airtac LRM Miniature Linear Guide LRM15L1X190S15AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM15L1X190S15AHT |
|---|---|
| Series | LRM Series Miniature Linear Guide |
| Supplied as | Complete guide set |
| Construction | Recirculating ball, stainless-steel rail, common-rail design |
| Size code | LRM15 |
| Rail width | 15 mm |
| Carriage length | Long carriage |
| Carriages supplied | 1 |
| Rail length | 190 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 | A — no 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 LRM15L1X190S15AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 15 | Size code. |
| L | Long carriage. |
| 1X190 | 1 carriage on a 190 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| A | A — no 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, 190 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 LRM15L1X190S15AHT Is Used
Flatness tester base slide
The under-bench slide of a small surface-flatness tester, where the top face of the base must stay clear for the workpiece. Bottom-mount fixing keeps the running surface flush on a seat ground to size.
Wafer probe card alignment
An alignment slide for a probe card module in wafer-level electrical test. The long carriage holds the module square over its travel, and grade H accuracy suits the coarse stage ahead of fine adjustment.
Fiber coupling adjustment
Traversing a coupling lens to align a fiber with a laser diode on an optical bench. No preload keeps breakaway friction minimal for a fine-drive axis, and mounting from below leaves the optical plane uncluttered.
Is the Airtac LRM Miniature Linear Guide LRM15L1X190S15AHT the Right Guide?
Start by ruling the neighbours in or out. Where loads are substantial or hang off a cantilever, LSH is the honest choice because its catalogue lists dynamic, static and moment ratings per carriage; LRM publishes none of these. Where travel is short and crossed-roller rigidity is the priority, LGC takes the job. Once LRM15 stands, check: complete-set form, 15 mm rail width, long carriage, one block, 190 mm rail, preload A (none) for the easiest slide at the cost of rigidity, grade H accuracy, and bottom-mount rail fixing - the T that defines this SKU. If you are matching a replacement carriage to this rail, you will need its pairing code. Confirm the load rating with us by RFQ before committing.
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 LRM15L1X190S15AHT FAQ
Rail width 15 mm, rail length 190 mm with a 15 mm end-hole offset, one long carriage, preload A (none), accuracy grade H, rail fixed from below via the trailing T. Fit M3 screws at 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminium. Keep ambient temperature at or below 80 C with no peaks above 100 C, and top up grease every 100 km of travel or every 3 to 6 months. LRM has no published load or moment ratings; we confirm them for this exact model through the RFQ.
The box holds one stainless 15 mm rail and one long carriage, assembled; the T suffix changes only how the rail is fixed - through the base instead of the top. Nothing else is included, and a spare carriage is not part of the set: carriage-only purchases carry pairing codes A to E that must match the rail, and our carriage-only stock runs to just four SKUs, so treat a spare as a special order. Because even a retained ball can escape if the carriage is angled onto the rail, plan a dummy rail if you expect to service this axis in the field.
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 LRM15L1X190S15AHT
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.