
The AirTAC Airtac LSH Linear Guide Rail LSH15HN4X2350T2350AN-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.
A long-travel LSH15 set built from a spliced rail: two hardened profile sections, 2350 mm each, joined at the T point so a carriage crosses the seam continuously. Joined, the running length is 4700 mm - 660 mm beyond the 4040 mm Lmax ceiling for a single size 15 rail, which is exactly why the spliced form exists. Four square standard-length carriages ride it, each with four rows of recirculating balls in 45 degree X-shaped arc raceways that carry load equally in all four directions and absorb slight mounting error internally. Rail width is 15 mm.
The catalogue rates each carriage at 11.3 kN dynamic, 17.9 kN static and 0.12 kN.m moment per axis; the static figure sits near 1.6 times the dynamic one, which is why the dynamic C value - not the eye-catching C0 - is the one that sets travel life. At accuracy N the running parallelism band is 12-37 um. Four carriages give the carried beam four load points, which is what keeps a wide gantry from nodding between supports over a 4.7 m span. First grease fill is 0.9 cm3 per carriage at the M4 fitting.
| Model | Airtac LSH Linear Guide Rail LSH15HN4X2350T2350AN-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 | Square (compact) |
| Carriage length | Standard carriage |
| Carriages supplied | 4 |
| Rail length | 2350 mm (spliced sections) |
| 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.
| 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. |
| 4X2350 | 4 carriages on a 2350 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. |
| This order | Complete guide set |
|---|---|
| Rail | Yes, 2350 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.
A cutting head traversing 4.7 m across a laid-up fabric sheet: the spliced rail gives one continuous datum where two separate rails would demand an alignment ritual at every joint.
A wide-format pen or UV-printer beam carried on four carriages, so the beam stays level across its whole width even at the extremes of a 4700 mm sweep.
A tote-handling shuttle running a 4 m lane in a compact goods-to-person bay, crossing the rail splice smoothly at full indexing speed.
For spans like this, plan the mounting bed as carefully as the guide: the splice only performs if both sections are pulled flat against their datum and torqued correctly, so support the substructure close to the joint. On capacity, four LSH15 carriages share a wide beam between four load points - but check the single-carriage case too, because a load landing over one carriage sees only that carriage's 0.12 kN.m. If that worst case governs, a step to LSH25 lifts MR to 0.44 kN.m per carriage for a one-part-number change. For light duties in tight spaces, LRM is the smaller alternative, though its load ratings are unpublished and we confirm them per enquiry; for short travel needing crossed-roller stiffness, compare LGC. Checklist: set form, size by load and moment, H standard carriages, count 4, spliced rail totalling 4700 mm, accuracy N, preload A, M4 fitting.
Quick checklist
Every LSH15 standard carriage in this set is rated 11.3 kN basic dynamic, 17.9 kN basic static, with MR, MP and My each 0.12 kN.m. Accuracy N running parallelism spans 12-37 um across the length bands. The rail takes M4 screws at 412 N.cm into steel, 274 N.cm into cast iron, 206 N.cm into aluminium; shoulder height is 3.5 mm with a corner radius of no more than 0.5 mm. Grease: 0.9 cm3 initial and 0.3 cm3 recharge per carriage, on a 100 km or 3-to-6-month cycle.
Two 2350 mm rail sections joined at the T point into one 4700 mm running surface, four square carriages pre-filled with Mobilux EP2, and plastic bolt caps for every mounting hole. Drive the caps fully into the counterbores - seat one, lay a flat plate over it and tap vertically with a plastic mallet - so swarf cannot reach the ball circuit; a cap must finish flush, never standing proud of the rail top. Fixing screws are not part of the supply.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.