Airtac LRM Miniature Linear Guide LRM12L1X175S12.5AH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X175S12.5AH 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.
- SeriesLRM
- Supplied asComplete guide set
- SizeLRM12
- Rail width12 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 LRM12L1X175S12.5AH
The LRM12L1X175S12.5AH is a complete, pre-assembled miniature guide: a 12mm stainless-steel rail of 175mm length with a single long recirculating-ball carriage running on it, mounted from above through the standard top-mount pattern. Its S12.5 segment sets the end-hole offset at 12.5mm from each rail end, giving you that extra spacing for your own end stops or tooling before the first fixing hole.
This is the friction-free member of the family: preload A means the carriage runs with no internal ball pressure, so drag is at its lowest and the slide feels almost floating - ideal where a light hand or a small actuator moves the load. The long carriage keeps a generous ball spread and bearing span even without preload. ISO 3290 G10 Japanese balls run behind a double-lip seal and an outer cover, with ball retention easing handling. Ambient temperature must stay at or below 80 C with peaks no greater than 100 C. AirTAC publishes no load or moment rating for LRM, so we confirm capacity for this exact model per order - ask through the RFQ.
Airtac LRM Miniature Linear Guide LRM12L1X175S12.5AH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X175S12.5AH |
|---|---|
| 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 | 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 LRM12L1X175S12.5AH
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | 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 LRM12L1X175S12.5AH Is Used
Bench jig positioner
A machinist or electronics technician slides a stop or fence along the 175mm rail by hand; preload A keeps the motion light so a knurled knob is enough to move it.
Compact camera inspection slide
A small camera or borescope travels the 175mm path for repetitive imaging of parts; the low-friction carriage lets a modest motor or spring drive carry it.
Label applicator feed arm
On a light labelling head, the long carriage supports the applicator across its short traverse, with the free-running preload A version suiting a spring-return stroke.
Is the Airtac LRM Miniature Linear Guide LRM12L1X175S12.5AH the Right Guide?
Size heavy or cantilevered duties on the LSH series, which publishes per-carriage dynamic, static and moment ratings you can calculate against; LRM is the choice when compactness, low drag and precision matter more, with ratings confirmed per model by us. For very short travels needing crossed-roller rigidity, cross to LGC. Match checklist for this SKU: complete set, 12mm rail width, long carriage, 1 block, 175mm rail, preload A - smoothest travel, but expect a little clearance under reversing loads - H accuracy, top-mount, and a load figure confirmed with us first. With 924 of 988 stocked LRM sets being size 12, availability on this configuration is excellent.
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 LRM12L1X175S12.5AH FAQ
Complete set with a 12mm-wide stainless-steel rail, 175mm long, 1 long carriage, preload A (none), H (high) accuracy, top-mount mounting, and a 12.5mm end-hole offset. Screw torques: M3 at 196 N.cm (steel), 127 N.cm (cast iron), 98 N.cm (aluminium); M2 at 58.8, 39.2 and 29.4 N.cm respectively. Ambient temperature limit is 80 C with transient peaks to 100 C; re-grease every 100 km of travel or every 3 to 6 months, quantities varying per model. Load and moment ratings are not published for LRM - we confirm them for this model before ordering.
Yes, with care. The ball-retention design keeps the ISO 3290 G10 balls captive during normal handling, but inserting the carriage at an angle, or snapping it on and off quickly, can still drop balls - approach the rail square and slide it on gently, and use a dummy rail if you expect frequent swaps. Do not dismantle the carriage, and on any inclined mounting hold the carriage, because it can slide off under its own weight. Note we stock only a handful of carriage-only SKUs, so most replacement carriages are a special order - request a pairing-coded spare early.
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 LRM12L1X175S12.5AH
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.