Airtac LRM Miniature Linear Guide LRM12L2X170S10AHT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X170S10AHT is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriages. 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
- Carriages2
- Rail length170 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 LRM12L2X170S10AHT
This code, LRM12L2X170S10AHT, specifies a complete LRM12 miniature guide set with the rail arranged for bottom-mount fixing: screws pass up through the mounting base into the rail, leaving the top surface unbroken - useful on slide tables where the carriage has to run over a flush deck. The set contains a 170 mm rail, 12 mm wide, in stainless steel, with two long recirculating-ball carriages pre-filled with grease, and preload grade A (none).
Two carriages share one rail, and the manufacturer advises putting the datum face on the same side when two or more carriages run together, which tightens running accuracy. The ball-retention design keeps the balls captive during handling, though it is a handling aid rather than a guarantee: angle the carriage onto the rail or swap it hastily and balls can still drop, so keep a dummy rail for field changes. Note the 80 C ambient ceiling (100 C transient peak) if this axis runs near a heater or lamp. No load or moment ratings are published for LRM; we confirm them per model, so send the RFQ.
Airtac LRM Miniature Linear Guide LRM12L2X170S10AHT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X170S10AHT |
|---|---|
| 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 | 2 |
| Rail length | 170 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 LRM12L2X170S10AHT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 2X170 | 2 carriages on a 170 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, 170 mm |
| Carriage | Yes, 2 |
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 LRM12L2X170S10AHT Is Used
Hidden-fastener slide table
A benchtop slide table where the top deck must stay unbroken for vacuum grooves or workpiece clamps: the bottom-mount rail fixes from beneath, leaving no screw heads in the carriage's path.
Adhesive dispensing axis
A small dispensing head traversing a 170 mm line on a PCB: with two carriages sharing one rail and the datum face set on the same side, needle height stays consistent along the pass.
Benchtop endurance test rig
A compact fixture cycling a phone-case sample back and forth: plan maintenance around the 100 km re-grease interval - at a 200 mm stroke cycling once per second, that arrives in roughly three weeks of continuous running.
Is the Airtac LRM Miniature Linear Guide LRM12L2X170S10AHT the Right Guide?
Check off each choice before ordering: complete set, 12 mm rail width, long carriage, two blocks, 170 mm rail, preload A (unpreloaded - quickest to fit, least rigid under overturning), high accuracy H, bottom-mount. Since no load or moment rating is published for LRM, ask us to confirm the figures for this code. When the load is heavy or overhung, LSH is the right step up because its catalogue lists dynamic, static and moment ratings per carriage - numbers LRM does not offer. For short strokes needing crossed-roller stiffness, look at LGC instead. Stock note: LRM12 dominates our range (924 of 988 stocked sets), so availability here is the best in the family.
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 LRM12L2X170S10AHT FAQ
Rail: stainless steel, 12 mm wide, 170 mm long, bottom-mount. Carriages: two long blocks, unpreloaded (grade A), accuracy H. Torque the mounting screws to 58.8 N.cm for M2 into steel (39.2 cast iron, 29.4 aluminium) or 196 N.cm for M3 (127 cast iron, 98 aluminium). Keep ambient temperature at or below 80 C, with peaks to 100 C, and re-grease every 100 km or 3-6 months. Load and moment ratings are not published for the LRM series; we verify them per model, so ask before ordering.
The complete set: one 170 mm bottom-mount stainless-steel rail, 12 mm wide, with two long carriages already fitted and pre-greased. Mounting screws, shim stock and a ground mounting surface are your side of the job - the base must be ground or finish-milled for the rated travel accuracy. LRM12 stock is deep (about 924 of our 988 stocked sets), so this configuration ships quickly. Replacement carriages alone are a different story: we stock only four carriage-only SKUs, so most spare blocks are a special order.
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 LRM12L2X170S10AHT
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.