
The AirTAC Airtac LSH Linear Guide Rail LSH15HN1X440S10AN-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.
LSH15HN1X440S10AN-M4 gives you a 440 mm size 15 guide rail with one square, standard-length carriage mounted, ready to seat against your datum face. Accuracy grade N carries a running-parallelism band of 12 to 37 um; how close you land inside that band depends mostly on the mounting surface - shoulder heights H 3.5 mm, H1 3 mm and H2 4 mm, corner radius no more than 0.5 mm, and screws pulled flat and torqued. Four rows of balls in 45 degree X-shaped raceways self-align to absorb slight residual error, within the published limits, not without end. True rail width is 15 mm.
Fix the rail with M4 screws at 412 N.cm in steel, 274 N.cm in cast iron or 206 N.cm in aluminium. Per carriage: 11.3 kN dynamic, 17.9 kN static, 0.12 kN.m in each moment direction. With preload A - none the guide tolerates 25 um of parallelism error and 130 um of height error at 500 mm spacing, so a normal-grade rail over a well-machined base is the practical, economical pairing.
| Model | Airtac LSH Linear Guide Rail LSH15HN1X440S10AN-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 | 1 |
| Rail length | 440 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.
| 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. |
| 1X440 | 1 carriage on a 440 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, 440 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.
A dial-indicator carriage sweeps 440 mm along extruded aluminium profile at an inspection bench. The N-grade band of 12-37 um defines the machine baseline before you measure the part.
A light router gantry on a 440 mm axis. With no preload the guide tolerates 25 um of parallelism and 130 um of height error at 500 mm spacing, which a machined aluminium plate meets without grinding.
A builder replacing worn round shafting on a CoreXY printer fits this 440 mm rail to the X bridge. The square carriage bolts over the top face, and recirculating balls hold accuracy far longer than plain bushings under continuous cycling.
This normal-grade set only reaches its 12-37 um band if the base plate does its part: shoulders machined to the LSH15 figures with corner radii under 0.5 mm, and bolts torqued to the M4 values. If you cannot hold that geometry, either stay with preload A - none and its wider allowances (25 um parallelism, 130 um height at 500 mm spacing) or step to LGC, whose crossed rollers suit short-travel precision. For lighter duties in less space, LRM steps down - its load ratings are not published, so we confirm them for you. For heavier moment duties, a long carriage or LSH20 with MR 0.27 kN.m steps up.
Checklist: form (this is a set), size chosen on load and moment, carriage style and length, block count and rail length, accuracy and preload with the installation trade-off stated, grease fitting from M4/AM6/LM6, and the pairing code if this replaces a part on an existing machine.
Quick checklist
Per standard square carriage: dynamic C 11.3 kN, static C0 17.9 kN, moments MR 0.12, MP 0.12, My 0.12 kN.m. Accuracy N gives 12-37 um running parallelism across the length bands. Mounting screws are M4, torqued 412 N.cm into steel, 274 N.cm into cast iron, 206 N.cm into aluminium. Grease: 0.9 cm3 first charge, 0.3 cm3 top-up, every 100 km of travel or every 3 to 6 months; the carriage is delivered pre-filled with Mobilux EP2.
Rigidity is paid for in installation latitude. On LSH15, no preload allows 130 um of height error at 500 mm spacing; light preload allows 85 um; medium preload only 35 um - roughly a quarter of the starting figure. Allowed parallelism error tightens the same way, from 25 to 18 to 13 um. This set is preload A - none, so it is the forgiving choice. Order B or C only if your machining can reliably hold the tighter numbers.
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Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.