Airtac LSH Linear Guide Rail LSH20HN4X1000S20AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN4X1000S20AN-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
- Carriages4
- Rail length1000 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 LSH20HN4X1000S20AN-M6
LSH20HN4X1000S20AN-M6 is a complete, mountable AirTAC LSH guide set: a 1000 mm rail of size 20 - the rail is genuinely 20 mm wide - with four square standard-length carriages. Each carriage holds four rows of recirculating balls in opposed X-shaped arc raceways at 45 degrees, resisting load and overturning equally from every side and self-aligning to small mounting-face errors rather than binding on them. The first bolt hole is 20 mm in from each rail end.
Four carriages split the load four ways: at 18.6 kN dynamic and 28.6 kN static per block, the set carries roughly 74.4 kN dynamic where the load sits evenly, and four contact points along 1000 mm resist tipping far better than one or two. How much of the N grade 12-37 um parallelism band you actually achieve depends largely on pulling the rail flat to its datum and torquing every M5 screw - 882 N.cm in steel - a dependency the catalogue states plainly.
Airtac LSH Linear Guide Rail LSH20HN4X1000S20AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN4X1000S20AN-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 | 4 |
| Rail length | 1000 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 LSH20HN4X1000S20AN-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. |
| 4X1000 | 4 carriages on a 1000 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, 1000 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.
Where the Airtac LSH Linear Guide Rail LSH20HN4X1000S20AN-M6 Is Used
Inspection bridge on a granite table
A camera bridge over a granite metrology table spans 1 m on four blocks, keeping the sensor plane parallel to the datum.
Cable-harness routing gantry
A harness routing head travels a 1000 mm rail with four support points, so the hanging loom cannot tip the carriage.
High-cycle dispensing gantry
A two-part epoxy dispensing gantry makes fast, repeated passes over a metre of travel with the load shared across four blocks.
Is the Airtac LSH Linear Guide Rail LSH20HN4X1000S20AN-M6 the Right Guide?
Choose by moment first if your load overhangs: the standard LSH20 block gives 0.27 kN.m MR, a long block lifts this to 0.35 kN.m and LSH25 N to 0.44 kN.m, so stepping up in size beats adding carriages when the lever arm is the problem - though a fourth block, as here, does the job when the load is long and spread out. If duty is light and space is scarce, AirTAC LRM steps down, with its ratings confirmed by us since they are not published. For short travel needing crossed-roller rigidity, LGC steps across. Confirm before ordering: form (complete set, four blocks), size against load AND moment, carriage style and length, block count and rail length, accuracy and preload (A here allows a 130 um height error at 500 mm spacing; C tightens it to 50 um), M6 fitting for size 20, and keep the carriage code for future carriage-only spares.
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 LSH20HN4X1000S20AN-M6 FAQ
Per block: C 18.6 kN dynamic, C0 28.6 kN static, static moments MR 0.27 / MP 0.25 / My 0.25 kN.m. N grade running parallelism band: 12-37 um. Rail fixing: M5 screws at 882 N.cm into steel, 588 N.cm into cast iron, 441 N.cm into aluminium. Grease: 1.8 cm3 Mobilux EP2 first charge, 0.6 cm3 top-up, refreshed every 100 km of travel or every 3 to 6 months.
This set carries four. Two blocks resist tipping along the travel; three or four suit a long or overhanging load that would rock on two. The trade-off is mounting accuracy: more contact points along a 1000 mm rail magnify any flatness error in the bed, and with preload A the bed may deviate up to 130 um in height over 500 mm of spacing (proportionally beyond that), while medium preload C would cut the allowance to 50 um. Blocks are interchangeable within LSH20, so adding more later on the same rail is straightforward.
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 LSH20HN4X1000S20AN-M6
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