Airtac LSH Linear Guide Rail LSH15F1N4X350S20AN-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15F1N4X350S20AN-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
- Carriages4
- Rail length350 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 LSH15F1N4X350S20AN-M4
This listing is a complete matched guide: a 350 mm LSH15 rail with four F1 top-flange carriages running on it, ordered as one code. Four rows of balls per carriage sit in opposing 45 degree arc raceways, each ball meeting its raceway at two points, which is what lets the carriage tolerate small flatness errors in the base plate without binding. The size code 15 matches the actual rail width of 15 mm. Preload grade A means the balls run with clearance - nothing in the circuit is preloaded.
Four carriages on one short rail divide the duty between them: the published 11.3 kN dynamic and 17.9 kN static figures are per carriage, and the static value runs about 1.6 times the dynamic one - which is exactly why sizing on the bigger C0 number alone overshoots the size, since C is the figure that governs travel life. With no preload, this configuration allows the widest mounting error in the range: 25 um of parallelism and 130 um of height error at 500 mm spacing, so a milled aluminium base plate is usually good enough without scraping. Rail screws are M4 at up to 412 N.cm in steel.
Airtac LSH Linear Guide Rail LSH15F1N4X350S20AN-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15F1N4X350S20AN-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, top mounting |
| Carriage length | Standard carriage |
| Carriages supplied | 4 |
| Rail length | 350 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 LSH15F1N4X350S20AN-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. |
| 4X350 | 4 carriages on a 350 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, 350 mm |
| Carriage | Yes, 4 |
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 LSH15F1N4X350S20AN-M4 Is Used
AOI camera bridge
An automated optical inspection head shuttling over a short 350 mm span: four carriages share the weight of the camera stage and stop the bridge rocking at each end of travel.
Lab automation deck axis
The X axis of a liquid-handling workstation, where a short throw and frequent stops suit a compact four-block rail and the top-flange fixing suits a sheet-metal deck.
Conveyor gating pusher
A divert or reject gate stroking a few hundred millimetres on a packaging conveyor: no preload forgives a welded frame's mounting errors, and four contact points steady the pusher blade.
Is the Airtac LSH Linear Guide Rail LSH15F1N4X350S20AN-M4 the Right Guide?
Start by confirming the form: this is a set, not a carriage on its own, so do not order it as a spare for an existing rail. If the load is modest and space is tight, AirTAC LRM may do the job, but its load ratings are not published and we would verify the fit with you first. If a cantilevered load is the real driver, one size up to LSH25 raises MR from 0.12 to 0.44 kN.m - far more than extra carriages achieve against tipping - while a fourth block on this 350 mm rail spreads vertical load and steadies the saddle. For short travels that need crossed-roller stiffness rather than long recirculating travel, compare LGC. Checklist: complete-set form, size by load AND moment, F1 top-flange standard carriage, 4 blocks, 350 mm rail, accuracy N, preload A, M4 fitting - and keep the pairing letter from any original part so a future spare carriage or rail matches.
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 LSH15F1N4X350S20AN-M4 FAQ
Per carriage: 11.3 kN basic dynamic load, 17.9 kN basic static load and 0.12 kN.m allowable moment in each of the MR, MP and My directions - all standard-carriage values for size 15. The N grade rail runs at 12-37 um parallelism depending on its length band. Mounting is M4 socket screws at 412, 274 and 206 N.cm for steel, cast iron and aluminium respectively. Lubrication is 0.9 cm3 first charge per carriage and 0.3 cm3 top-ups on a 100 km or 3-to-6-month cycle. With a short stroke of around 250 mm, 100 km equals roughly 400,000 one-way strokes, so high-rate cycling consumes the interval quickly.
The box holds one complete assembly: the 350 mm rail with all four F1 carriages fitted, plus rail screws and bolt caps. It is not a carriage-only or rail-only listing. If you ever need a spare block or a longer rail, LSH parts carry a pairing letter that must match between rail and carriage - read it off the original component and quote it with the model code. The carriages also arrive pre-filled with Mobilux EP2 or equivalent, so no first charging is needed before the guide runs.
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 LSH15F1N4X350S20AN-M4
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