Airtac LRM Miniature Linear Guide LRM15L1X175S7.5AH
The AirTAC Airtac LRM Miniature Linear Guide LRM15L1X175S7.5AH 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 length175 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 LRM15L1X175S7.5AH
This code describes a ready-to-mount miniature guide set: a 15 mm stainless-steel rail cut to 175 mm with a single long carriage running on recirculating balls. The S7.5 end-hole offset is the detail to notice - the outermost fixing holes sit only 7.5 mm in from each rail end, letting you clamp nearly the full 175 mm of rail onto a short baseplate. The set ships as rail plus greased carriage; screws come from your own fastener stock.
Two design features earn their place here. The double-lip seal scrapes oil back and keeps dust out, with an outer cover shielding the seal strip and hiding the fixing screws; and the ball complement is Japanese ISO 3290 G10 grade - a roundness and wear grade for the balls themselves, not an accuracy class for the guide. The LRM rail profile is shared across carriage types, so a different block can run on this rail later. Keep ambient temperature at or below 80 C (transient peaks to 100 C) - a real constraint beside a laser or a heater. No load or moment figures are published for LRM, so we verify the rating for this 175 mm set when you send the RFQ.
Airtac LRM Miniature Linear Guide LRM15L1X175S7.5AH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM15L1X175S7.5AH |
|---|---|
| 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 | 175 mm |
| 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 LRM15L1X175S7.5AH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 15 | Size code. |
| L | Long carriage. |
| 1X175 | 1 carriage on a 175 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, 175 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 LRM15L1X175S7.5AH Is Used
Laser marking head
A Z-axis slide on a small fibre laser marker, where the 175 mm rail fits a tight column and the 80 C ambient cap sits comfortably clear of the lens barrel's heat.
Fixtured measuring stand
A coordinate-checking fixture for small machined pins, where the 7.5 mm end offset lets the rail be bolted close to the edges of a short steel or granite plate.
Optics tuning slide
A laboratory beam-conditioning bench sliding a lens holder to trim path length; preload A keeps the motion free for hand adjustment during setup.
Is the Airtac LRM Miniature Linear Guide LRM15L1X175S7.5AH the Right Guide?
Both directions of comparison are worth a minute. Upward: if the load is heavy or reaches out on a cantilever, AirTAC LSH is the series with published per-carriage dynamic, static and moment ratings you can design against - LRM offers none, so sizing here means us confirming figures for your specific case. Across: for very short strokes needing crossed-roller stiffness, LGC is the tighter choice. There is also a commercial point: our stocked LRM sets run from about $66 to $831 across just two rail widths, so rail length and carriage count - not size - drive the price, and shortening the 175 mm travel saves real money.
Checklist before you order: set (not carriage-only), 15 mm rail width, long carriage, single block, 175 mm rail, preload A (none - the forgiving option that tolerates an ordinary finish-milled surface, at the cost of preload stiffening), accuracy H, top-mount fixing, and a pairing code only if you are matching a replacement carriage. Tell us the load and we will confirm the rating for this model.
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 LRM15L1X175S7.5AH FAQ
Rail width 15 mm, rail length 175 mm, one long carriage, preload code A (none), accuracy code H, top-mount fixing. Screw torque: M2 at 58.8 N.cm (steel), 39.2 N.cm (cast iron), 29.4 N.cm (aluminium); M3 at 196, 127 and 98 N.cm. Keep ambient temperature at or below 80 C, peaks to 100 C. Grease every 100 km of travel or every 3 to 6 months. Dynamic load, static load and moment ratings are not published for LRM - we confirm them for this exact model on request.
LRM is the miniature, light-duty end of the range and publishes no load or moment table, so sizing depends on us confirming the rating per model. LSH is the larger series and does publish per-carriage dynamic, static and moment ratings, so if the load is substantial or overhangs the carriage on a cantilever, size it in LSH instead. For short travel where crossed-roller rigidity is the priority, LGC is the cross-over alternative. Send your layout to us and we will confirm which series and which ratings apply.
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 LRM15L1X175S7.5AH
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.