Airtac LSH Linear Guide Rail LSH20HN1X1180S20AH-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN1X1180S20AH-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
- Carriages1
- Rail length1180 mm
- AccuracyH — high 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 LSH20HN1X1180S20AH-M6
This LSH20HN1X1180S20AH-M6 code orders a finished guide: a single unspliced 1180 mm rail, 20 mm wide, with one standard-length square carriage, high (H) accuracy, no preload, a 20 mm end offset and an M6 fitting. The four rows of balls inside the block sit in 45 degree arc raceways arranged in an X, so radial, reverse-radial and side loads all meet the same rating, and slight misalignment of the mounting face is taken up inside the carriage.
1180 mm sits comfortably inside the 4040 mm maximum rail length for size 20, so no rail joint is needed and running parallelism stays within the 7 to 28 um band of the H grade. The catch is the bed, not the guide: whatever flatness error the machine base carries over the full 1180 mm span adds to that figure, and whether the rail is pulled flat against its datum and the M5 screws torqued correctly decides how much of the grade you actually realise.
Airtac LSH Linear Guide Rail LSH20HN1X1180S20AH-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN1X1180S20AH-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 | 1 |
| Rail length | 1180 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 | H — high 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 LSH20HN1X1180S20AH-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. |
| 1X1180 | 1 carriage on a 1180 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. |
| H | H — high 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, 1180 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 LSH20HN1X1180S20AH-M6 Is Used
Benchtop CNC router X-axis
A 1180 mm X-axis on a small router cutting aluminium sheet and plastics, where the H grade's 7 to 28 um running parallelism supports a consistent finish along the full pass.
PCBA inspection stage
A long-stroke inspection stage carrying printed circuit boards under a camera; the single unspliced 1180 mm rail avoids joint bumps and the M6 nipple keeps lubrication simple.
Packaging line pusher guide
A rail guiding the pusher bar that diverts cartons along a conveyor; a second LSH20 carriage can be added later on this same rail to resist tipping under an offset load.
Is the Airtac LSH Linear Guide Rail LSH20HN1X1180S20AH-M6 the Right Guide?
Start from the bed: at 1180 mm the mounting surface, not the catalogue rating, usually decides achieved accuracy, so confirm the base can be machined or shimmed flat before committing to the H grade. Load-wise this block gives 18.6 kN dynamic and 0.27 kN.m MR; a cantilevered head may be better served by the long LSH20L carriage, which lifts MR to 0.35 kN.m, or by a second carriage on the same rail. For lighter compact duties, LRM steps down from LSH, but its load ratings are not published, so we confirm them against your duty. Where travel is short and you want crossed-roller stiffness rather than long recirculating travel, LGC is the cross-step.
Match checklist: form (complete set here), size by load and moment, carriage style and length, count and rail length, accuracy grade and preload with the installation trade-off stated, grease fitting, and the pairing code when replacing a part on existing hardware.
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 LSH20HN1X1180S20AH-M6 FAQ
Per carriage: C 18.6 kN dynamic, C0 28.6 kN static, moments MR 0.27, MP 0.25, My 0.25 kN.m. The H grade runs at 7 to 28 um running parallelism across the length band. Mounting: M5 screws at 882 N.cm steel, 588 cast iron, 441 aluminium; shoulder corner radius 0.5 mm maximum. Lubrication: Mobilux EP2 pre-filled, 1.8 cm3 first charge, 0.6 cm3 top-up every 100 km of travel or 3 to 6 months, via the M6 nipple.
One 1180 mm rail and one square standard-length carriage - that is the complete set; no extra parts are needed to run it. LSH carriages are interchangeable within the model: any LSH20 carriage fits this rail and keeps its smoothness, preload and accuracy, so a second block ordered later simply bolts on and doubles the tipping resistance along the travel. Remember to drive the supplied bolt caps into the rail holes after mounting, seated flush with the top face, or swarf will reach the ball circuit.
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 LSH20HN1X1180S20AH-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.