Airtac LSH Linear Guide Rail LSH15F2N1X170S25AN-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15F2N1X170S25AN-M4 is a standard-type profile linear guide on a 15 mm wide rail. Four rows of balls contact X-shaped raceways at a 45° angle, so the guide carries load equally in all four directions and absorbs small mounting errors inside the carriage instead of binding.
- SeriesLSH
- Supplied asComplete guide set
- SizeLSH15
- Rail width15 mm
- Carriage lengthStandard carriage
- Carriages1
- Rail length170 mm
- AccuracyN — normal 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 LSH Linear Guide Rail LSH15F2N1X170S25AN-M4
The LSH15F2N1X170S25AN-M4 is a complete linear guide assembly: a 170 mm length of LSH15 profile rail paired with one standard-length F2 bottom-flange carriage, supplied at normal (N) accuracy, without preload, and with an M4 grease nipple. Inside the block, four rows of recirculating balls bear on X-shaped 45 degree arc raceways, giving the same load capacity in every direction and letting the carriage soak up minor machining faults on the mounting face rather than jamming. Because this is the F2 flange, fixing screws pass up through the base and the working surface above stays unobstructed. Size 15 means a true 15 mm rail width.
The static rating of 17.9 kN sits roughly 1.5 times above the 11.3 kN dynamic figure - that margin is what absorbs shock loads and stationary overhangs, while the 11.3 kN C value governs travel life, so size on C, not on the bigger number. At 170 mm the rail sits far inside the 4040 mm maximum length for this size, so a longer or shorter version later is a part-number change, not a redesign.
Airtac LSH Linear Guide Rail LSH15F2N1X170S25AN-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15F2N1X170S25AN-M4 |
|---|---|
| Series | LSH Series Linear Guide |
| Supplied as | Complete guide set |
| Construction | Recirculating ball, four ball rows on X-shaped raceways at a 45° contact angle, self-aligning |
| Size code | LSH15 |
| Rail width | 15 mm |
| Carriage style | Flange, bottom mounting |
| Carriage length | Standard carriage |
| Carriages supplied | 1 |
| Rail length | 170 mm |
| Basic dynamic load rating C | 11.3 kN per carriage |
|---|---|
| Basic static load rating C0 | 17.9 kN per carriage |
| Allowable static moment | MR 0.12 / MP 0.12 / My 0.12 kN·m |
| Accuracy grade | N — normal grade |
| Preload grade | A — no preload |
| Mounting screws | M4 — 412 N·cm into steel, 274 cast iron, 206 aluminium |
| Lubrication | Pre-filled with Mobilux EP2; re-grease every 100 km of travel or every 3–6 months |
| Interchangeability | LSH carriages fit LSH rails of the same model |
Specifications follow the official AirTAC LSH catalogue. The catalogue page does not state the carriage or rail base material. Sizes 35 and 45 exist in the catalogue but are not stocked here; they are available to order.
Model Code: Airtac LSH Linear Guide Rail LSH15F2N1X170S25AN-M4
| LSH | LSH Series Linear Guide. |
|---|---|
| 15 | Size code. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| N | Standard carriage. |
| 1X170 | 1 carriage 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. |
| N | N — normal grade. |
| -M4 / -M6 / -A01… | Grease nipple or tube-fitting type. Restricted by size: size 15 the M4 family, 20–35 the M6 family, 45 the PT1/8 family. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 170 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 LSH Linear Guide Rail LSH15F2N1X170S25AN-M4 Is Used
Benchtop pick-and-place gantry
A small SMD placer moves its vacuum head along a 170 mm X-axis. The 17.9 kN static rating comfortably absorbs start-stop shock from a head that weighs a tiny fraction of that figure.
Laser marker head repositioning
Between batch changes an operator slides a marking laser head 170 mm onto a second fixture. The load is light, the no-preload fit runs easily by hand, and the M4 nipple allows a top-up without pulling the carriage off.
Filling-nozzle traverse
A semi-automatic filler steps its nozzle across a 170 mm tray of vials. The 0.12 kN.m moment rating carries the nozzle's overhang past the carriage centreline without tipping the block.
Is the Airtac LSH Linear Guide Rail LSH15F2N1X170S25AN-M4 the Right Guide?
Size by load and moment together, not load alone. The 11.3 kN dynamic rating and 0.12 kN.m of moment per carriage cover light horizontal travel, but a cantilevered load with an offset centre of gravity may already be moment-limited: stepping up to LSH20 raises MR to 0.27 kN.m in one move, and the long LSH15 carriage is the other lever. Where the duty is genuinely light and space is tight, LRM is the smaller alternative - its ratings are unpublished, so we verify suitability with you before ordering. For short, stiff moves of a few tens of millimetres, LGC crossed-roller guides may beat a recirculating design. Confirm before ordering: set form, size, carriage style and length, block count, rail length and end offset, accuracy and preload (each tighter grade narrows the tolerable mounting error), grease fitting, and shoulders H 3.5 / H1 3 / H2 4 mm with corner radius at most 0.5 mm.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Worst-case moment, not just straight load
- ✓ 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 LSH Linear Guide Rail LSH15F2N1X170S25AN-M4 FAQ
Per standard-length LSH15 carriage: C 11.3 kN dynamic, C0 17.9 kN static, moments MR 0.12 / MP 0.12 / My 0.12 kN.m, and N-grade running parallelism of 12-37 um depending on rail length. Fix the rail with M4 screws at 412 / 274 / 206 N.cm into steel / cast iron / aluminium. Lubrication is 0.9 cm3 of Mobilux EP2 at first fill, then 0.3 cm3 top-ups through the M4 nipple every 100 km of travel or every 3 to 6 months. Use the C value for travel-life sizing; C0 is the margin against static overload.
One 170 mm LSH15 rail with its bolt caps for the M4 mounting holes, and one F2 bottom-flange carriage fitted with an M4 grease nipple and pre-filled with Mobilux EP2. Drive the bolt caps fully into the counterbores - seat each cap, lay a flat plate over it and tap vertically with a plastic mallet - because a cap standing proud of the rail top will let swarf into the ball circuit. The carriage is interchangeable: any LSH15 carriage of this model fits any LSH15 rail of the model and keeps its accuracy.
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 LSH Linear Guide Rail LSH15F2N1X170S25AN-M4
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