Airtac LRM Miniature Linear Guide LRM12L2X170S10CH
The AirTAC Airtac LRM Miniature Linear Guide LRM12L2X170S10CH 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
- PreloadC — medium 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 LRM12L2X170S10CH
LRM12L2X170S10CH is a finished miniature linear guide assembly: a 12 mm wide stainless-steel rail, 170 mm long with a 10 mm end-hole offset, screwed down from the top, with two long ball carriages delivered mounted on it. It is a mechanical recirculating-ball guide for light-duty positioning - it carries no air and has no pneumatic parameters.
The C in the preload position is the firm option: medium preload removes internal clearance for a stiffer, less compliant carriage, at the cost of higher running drag and a real sensitivity to installation quality - the mounting surfaces must be ground or finish-milled, or the extra rigidity is wasted. The long carriage spreads contact over more balls and a longer bearing span, which suits a head that pitches or tips. Balls are graded ISO 3290 G10 (that grade covers the balls alone), a double-lip seal manages lubrication and dust, and an outer cover hides the screws and keeps debris off the seal strip. Ambient temperature: 80 C maximum, 100 C transient peak. Where you would expect a load table, none is published for LRM - the ratings for this model are confirmed when you send us the RFQ. Another practical angle: price across this series moves with rail length and carriage count, not with rail width, so trimming travel is the lever that cuts cost.
Airtac LRM Miniature Linear Guide LRM12L2X170S10CH Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L2X170S10CH |
|---|---|
| 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 |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | H — high grade |
| Preload grade | C — medium 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 LRM12L2X170S10CH
| 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. |
| C | C — medium 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 LRM12L2X170S10CH Is Used
Micro dispensing head
A solder-paste or adhesive dispenser on a small benchtop cell translates its needle over pads; medium preload stops the head rocking at each stop-start, and the long carriage counters the tipping of the nozzle arm.
Laser diode focusing stage
An optics lab racking a laser diode assembly moves the focusing lens with a single long carriage on one rail; the medium preload removes play so the focal position stays put after each adjustment.
0402 component pick-and-place
A compact pick-and-place head for 0402 passives rides two long carriages along the feeders; the firmer preload keeps the head square to the nozzle station through fast directional changes.
Is the Airtac LRM Miniature Linear Guide LRM12L2X170S10CH the Right Guide?
Medium preload is the defining decision here, so pick this code when you need a firmer feel and can hold the mounting-surface tolerance that medium preload expects. With a substantial or cantilevered load, the honest move is up to LSH, which publishes per-carriage dynamic, static and moment ratings for sizing; LRM does not, so we verify the numbers for this model when you enquire. Short travels needing crossed-roller stiffness belong with LGC. Checklist before ordering: set form, 12 mm rail width, long carriage length, two carriages, 170 mm rail length, 10 mm end offset, preload C, accuracy H, top-mount, plus a load-rating confirmation 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 LRM12L2X170S10CH FAQ
Rail width 12 mm, rail length 170 mm, two long carriages, medium (C) preload, high (H) accuracy, top-mount rail, 10 mm end-hole offset. Fixing torque: M3 screws at 196 N.cm into steel, 127 N.cm into cast iron, 98 N.cm into aluminium; M2 screws at 58.8, 39.2 and 29.4 N.cm. Temperature limit is 80 C ambient with 100 C transient peaks, and re-greasing with Kyodo Yushi PS No. 2 falls due every 100 km of travel or every 3 to 6 months. Load and moment ratings are not published for the LRM series - we confirm them for this specific model on enquiry.
The ball-retention design keeps the balls captive during normal handling, but the manufacturer is explicit that inserting a carriage at an angle, or fitting and removing it hastily, can still drop balls - a dummy rail is the practical tool for frequent carriage changes. Do not dismantle the carriage, and hold it when the rail is inclined, because it can slide off under its own weight. Spare carriages on their own form only a thin slice of the range, so a replacement is normally ordered to match the pairing code of your rail.
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 LRM12L2X170S10CH
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.