Airtac LSH Linear Guide Rail LSH20HN2X3660S30AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN2X3660S30AN-M6 is a standard-type profile linear guide on a 20 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
- SizeLSH20
- Rail width20 mm
- Carriage lengthStandard carriage
- Carriages2
- Rail length3660 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 LSH20HN2X3660S30AN-M6
LSH20HN2X3660S30AN-M6 is one unbroken 3660 mm size 20 profile rail - true width 20 mm - with its two square standard carriages fitted and the end fixing holes set 30 mm in from each rail end. Each carriage holds four rows of recirculating balls in X-configured arc raceways touched at 45 degrees; loads from any of the four directions meet an equal rating, and the geometry self-aligns, absorbing slight mounting-surface error that would otherwise bind a less forgiving slide.
Length is the story: 3660 mm leaves 380 mm of headroom under the 4040 mm Lmax ceiling for size 20, and with no splice a carriage never crosses a joint, which protects smoothness and parallelism across the whole span. N-grade running parallelism is specified as a 12-37 um band. Hold the rail down properly: M5 screws at 882 N.cm in steel, and drive the supplied bolt caps fully home - over a 3.66 m run, a single unseated cap anywhere along the rail is an open door for swarf into the ball circuit.
Airtac LSH Linear Guide Rail LSH20HN2X3660S30AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN2X3660S30AN-M6 |
|---|---|
| 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 | LSH20 |
| Rail width | 20 mm |
| Carriage style | Square (compact) |
| Carriage length | Standard carriage |
| Carriages supplied | 2 |
| Rail length | 3660 mm |
| Basic dynamic load rating C | 18.6 kN per carriage |
|---|---|
| Basic static load rating C0 | 28.6 kN per carriage |
| Allowable static moment | MR 0.27 / MP 0.25 / My 0.25 kN·m |
| Accuracy grade | N — normal grade |
| Preload grade | A — no preload |
| Mounting screws | M5 — 882 N·cm into steel, 588 cast iron, 441 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 LSH20HN2X3660S30AN-M6
| LSH | LSH Series Linear Guide. |
|---|---|
| 20 | Size code. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| N | Standard carriage. |
| 2X3660 | 2 carriages on a 3660 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, 3660 mm |
| Carriage | Yes, 2 |
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 LSH20HN2X3660S30AN-M6 Is Used
Cross-line transfer gantry
A 3660 mm rail spans two conveyor lines so a transfer unit can pick from one and place onto the other; the two blocks keep the bridge level and resist tipping along its full travel.
Press-loading gantry
Above a long press bed, this rail carries a magnetic gripper from feed magazine to die area; N grade and a single unspliced rail keep travel smooth across the full 3.66 m without a joint to cross.
Drag-chain endurance rig
Test labs run cables and hoses back and forth over metre after metre; a 3660 mm size 20 rail gives the moving trolley a long, straight, low-friction track with an M6 nipple for easy servicing.
Is the Airtac LSH Linear Guide Rail LSH20HN2X3660S30AN-M6 the Right Guide?
At 3660 mm this rail runs near the 4040 mm Lmax for size 20 with 380 mm to spare, and being one piece it never asks a carriage to cross a splice - worth having over a long span. Verify capacity per block (C 18.6 kN, MR 0.27 kN.m) and remember that installation tolerances quoted at 500 mm spacing scale with the real distance between rails, so survey the machine bed before fixing the preload choice.
Step down to LRM for light, compact duty - its ratings are confirmed on request - or across to LGC for short strokes where crossed-roller stiffness is the priority. Step up to the long LSH20 carriage for about 30 percent more MR, or to LSH25 N for roughly 63 percent more. Checklist: form, size, carriage style and length, block count, rail length and end offset, accuracy grade, preload versus mounting quality, grease fitting, and the pairing code for any replacement part.
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 LSH20HN2X3660S30AN-M6 FAQ
Per square standard block: C 18.6 kN dynamic, C0 28.6 kN static, moments MR 0.27 kN.m, MP 0.25 kN.m, My 0.25 kN.m; two blocks are fitted. N-grade parallelism band: 12-37 um over the rail. Rail length 3660 mm against a 4040 mm Lmax for size 20, end offset S30. Fixing: M5 screws at 882 N.cm (steel), 588 N.cm (cast iron), 441 N.cm (aluminium). Lubrication: 1.8 cm3 Mobilux EP2 pre-filled per block, 0.6 cm3 top-up every 100 km of travel or every 3 to 6 months.
Three things. First, the tolerances quoted at 500 mm spacing scale with the real distance between the two rails, so measure parallelism and height over the full span, not just locally - this preload-A set allows S 130 um and P 25 um at 500 mm. Second, the code carries no T, so the rail is top-lock: screws clamp from above at 882 N.cm (M5, steel). Third, every bolt cap must be seated in its counterbore, tapped flush under a flat plate with a plastic mallet, and the rail cleaned afterwards; then stroke each carriage at least three carriage-lengths, twice, and confirm an even grease film before power-up.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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