Airtac LSH Linear Guide Rail LSH15RLX4000-N-E
The AirTAC Airtac LSH Linear Guide Rail LSH15RLX4000-N-E 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 asRail only
- SizeLSH15
- Rail width15 mm
- Rail length4000 mm
- 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 LSH15RLX4000-N-E
LSH15RLX4000-N-E is the rail on its own from AirTAC's LSH15 series: one profile rail, 4000 mm long, normal (N) accuracy, pairing code E, and no carriage of any kind in the package. On this smallest LSH size the 15 mm true rail width matches the size code. Hardened raceway faces run along both sides of the rail to receive the four rows of balls of a mating LSH15 carriage, contacting at 45 degrees, and once paired the guide self-aligns, absorbing slight mounting-surface error within the catalogue limits. Mounting is top-lock, the standard direction, with the bolt heads clamped from above the rail top face.
At 4000 mm this cut sits just 40 mm below the 4040 mm maximum rail length for size 15, so it is close to the longest single rail you can order in this series. Normal grade carries a running parallelism band of 12-37 um over the grade's length range. Fix it with M4 socket screws torqued to 412 N.cm in steel, 274 N.cm in cast iron or 206 N.cm in aluminium, keep the mounting-shoulder corner radius at 0.5 mm or less, and remember that whether the rail is pulled flat against the datum face has a large effect on the accuracy you actually achieve.
Airtac LSH Linear Guide Rail LSH15RLX4000-N-E Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15RLX4000-N-E |
|---|---|
| Series | LSH Series Linear Guide |
| Supplied as | Rail only |
| Construction | Recirculating ball, four ball rows on X-shaped raceways at a 45° contact angle, self-aligning |
| Size code | LSH15 |
| Rail width | 15 mm |
| Rail length | 4000 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 |
| 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, matched by the pairing code |
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. This item is a rail only. Order a complete set if you also need a carriage.
Model Code: Airtac LSH Linear Guide Rail LSH15RLX4000-N-E
| LSH | LSH Series Linear Guide. |
|---|---|
| 15 | Size code. |
| RL | Rail only — no carriage supplied. |
| Pairing code | Rails and carriages must share a pairing code. Take it from the original part when replacing. |
| -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 | Rail only |
|---|---|
| Rail | Yes, 4000 mm |
| Carriage | No — not supplied with this item |
This is a bare rail cut to length. NO CARRIAGE IS INCLUDED. 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 LSH15RLX4000-N-E Is Used
Replacing a scored rail on a granite metrology stage
A 4000 mm normal-grade cut suits rebuilding the long axis of a coordinate measuring table where the original rail is brinelled but the carriages and the machine datum are still sound.
Long axis for a vision inspection gantry
Machine builders laying out one straight run close to the size 15 maximum use this 4000 mm rail with paired carriages to carry a camera bridge across a wide workpiece.
Tooling rail on a modular assembly fixture
Fit-and-forget guide rails for position fixtures on assembly lines, where the pairing code lets spare carriages be ordered later without re-measuring the installed rail.
Is the Airtac LSH Linear Guide Rail LSH15RLX4000-N-E the Right Guide?
Ordering rail-only means the sizing decision sits with the carriage you will pair to it, so choose that first by load and by moment, then confirm grade and length against the machine datum. Light, compact duties can step down to AirTAC LRM, whose load ratings are not published, so we confirm them for your application before you commit. When the moment governs rather than the straight load, step up a carriage size or take a long body. Where travel is short and crossed-roller rigidity matters more than long recirculating travel, LGC is the better family. Before you buy: form (rail only), size 15 and its 15 mm true width, intended carriage style, length and count, accuracy grade N, top-lock mounting, and the pairing letter E that the mating carriage must share.
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 LSH15RLX4000-N-E FAQ
As a rail-only part it has no load rating, no preload and no grease charge - those belong to the carriage. The rail's own figures: cut length 4000 mm against a 4040 mm size 15 maximum (40 mm spare), true rail width 15 mm, normal accuracy with a running parallelism band of 12-37 um, M4 mounting screws torqued to 412 / 274 / 206 N.cm on steel / cast iron / aluminium, and shoulder limits H 3.5 mm, H1 3 mm, H2 4 mm with a maximum corner radius of 0.5 mm.
The box holds one 4000 mm LSH15 profile rail with top-lock mounting and nothing else - no carriage, no preload and no lubrication are included. The trailing letter E is the pairing code, and the LSH15 carriage you fit must carry the same letter. If you are replacing a rail, copy the pairing letter off the original rail or its carriage before ordering, because a rail sold under a different letter is not the matched part.
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 LSH15RLX4000-N-E
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.