Airtac LSH Linear Guide Rail LSH15HN1X450S20AN-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15HN1X450S20AN-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 length450 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 LSH15HN1X450S20AN-M4
This is a complete LSH15 linear guide set: one 450 mm profile rail and one square (H) standard-length carriage, ordered as the code LSH15HN1X450S20AN-M4. The rail is 15 mm wide, matching the size code on this model. Four rows of recirculating balls run in X-arranged 45 degree arc raceways with two contact points per ball, so the carriage carries the same rating upward, downward and sideways, and slight mounting-surface error is absorbed inside the block rather than showing up as binding.
Per carriage the catalogue gives 11.3 kN basic dynamic and 17.9 kN basic static load, with MR, MP and My moment ratings of 0.12 kN.m each. Accuracy is N grade, with running parallelism of 12-37 um across the length band, and the rail carries the 20 mm end-hole offset with no preload. Because preload is A, installation tolerances stay generous: at 500 mm rail spacing the guide accepts up to 130 um of height error between paired rails. Mind the re-grease clock, though - a 250 mm stroke cycled once per second covers the 100 km service interval in under five days of continuous running, so distance usually binds before the calendar.
Airtac LSH Linear Guide Rail LSH15HN1X450S20AN-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15HN1X450S20AN-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 | 450 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 LSH15HN1X450S20AN-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. |
| 1X450 | 1 carriage on a 450 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, 450 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 LSH15HN1X450S20AN-M4 Is Used
Compact pick-and-place module
A benchtop Cartesian pick-and-place unit moving small electronic parts between tray and test fixture: the 450 mm rail defines one axis, and the single square carriage carries the Z gripper with the 11.3 kN dynamic rating in comfortable margin.
Laser engraver Y-axis
A desktop laser engraver's moving bridge runs on short-stroke guide sets like this one; N accuracy and 12-37 um running parallelism hold the beam-to-workpiece gap steady at full engraving speed.
Benchtop dispensing robot
A fluid-dispensing gantry on an electronics assembly bench: the self-aligning carriage tolerates a lightly machined aluminium baseplate, so a modest plate finish still yields smooth, repeatable travel.
Is the Airtac LSH Linear Guide Rail LSH15HN1X450S20AN-M4 the Right Guide?
Size 15 with a single standard carriage is the light end of the LSH range. If the load is small and the envelope tighter still, step down to AirTAC LRM - but note its load ratings are not published, so we will confirm them for your duty before you commit. When the moment rather than the load governs - a cantilevered camera arm, an overhung cutting head - step up: LSH25 N lifts the MR rating from 0.12 to 0.44 kN.m in one move, or a long LSH20 carriage buys about 30 percent more moment for a fraction of that step. Where travel is short and the job needs crossed-roller rigidity rather than long recirculating runs, LGC is the better match.
Checklist before ordering: confirm the form (this is a complete set), the size against both load and moment, square carriage of standard length, one carriage on 450 mm of rail, accuracy N and preload A - remember medium preload would tighten the allowable height error from 130 um to 35 um - the M4 grease fitting, and the correct screw torque, 412 N.cm in steel.
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 LSH15HN1X450S20AN-M4 FAQ
For the LSH15 standard carriage: basic dynamic load C 11.3 kN, basic static load C0 17.9 kN, allowable static moments MR 0.12, MP 0.12 and My 0.12 kN.m. N accuracy gives 12-37 um running parallelism over the length band. Rail mounting uses M4 screws at 412 / 274 / 206 N.cm torque in steel, cast iron or aluminium. Each carriage ships charged with 0.9 cm3 of Mobilux EP2; top up 0.3 cm3 through the M4 fitting every 100 km of travel or every 3 to 6 months.
Rigidity, yes. With preload A this set tolerates 25 um of parallelism error and 130 um of height error between rails at 500 mm spacing. Specifying preload C instead would cut those allowances to 13 um and 35 um - nearly four times tighter on height - so the mounting surfaces would need machining to match. If your baseplate is milled to modest tolerance, preload A with its easier installation is the sounder choice.
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