Airtac LSH Linear Guide Rail LSH20HN10X1794S27AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN10X1794S27AN-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
- Carriages10
- Rail length1794 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 LSH20HN10X1794S27AN-M6
This SKU is a complete matched set, not a bag of parts: one 1794 mm LSH profile rail, size 20 (the rail really is 20 mm wide), carrying ten square H-type carriages of standard length, 27 mm end-hole offset, zero preload, normal accuracy grade and M6 grease nipples. Rail and carriages of the same model are interchangeable, so any block keeps its smoothness and accuracy on this rail. Inside each carriage, four rows of recirculating balls sit in X-shaped arc raceways cut at 45 degrees, two contact points per ball; a load pushing up is countered symmetrically, which is why the block rates the same whatever direction the force comes from, and slight machining error on the mounting face is taken up inside the carriage instead of binding the balls.
Per carriage the catalogue gives 18.6 kN dynamic (C), 28.6 kN static (C0) and allowable moments of MR 0.27, MP 0.25, My 0.25 kN.m; static running roughly 1.5 times dynamic is normal across the LSH range, and travel-life sizing uses C, not the bigger static figure. Ten carriages on one rail is what makes this code interesting for a long, multi-station beam: tipping along the travel is resisted by the spacing between carriages, and ten of them let you place loads or tool stations almost anywhere along 1794 mm. If the axis ever needs to grow, maximum rail length for size 20 is 4040 mm, so there is 2246 mm of headroom left in the series.
Airtac LSH Linear Guide Rail LSH20HN10X1794S27AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN10X1794S27AN-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 | 10 |
| Rail length | 1794 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 LSH20HN10X1794S27AN-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. |
| 10X1794 | 10 carriages on a 1794 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, 1794 mm |
| Carriage | Yes, 10 |
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 LSH20HN10X1794S27AN-M6 Is Used
Ten-station tapping gantry
On an aluminium extrusion line, a tapping head at every station can ride its own carriage on this shared 1794 mm rail; station pitch is set by wherever the bed is drilled, not by a fixed two-block layout.
Modular electronics test line
Ten PCB test heads indexed along one 1794 mm rail share a single datum, so a station can be repositioned without re-datuming the whole line.
Case-packer pusher bank
A packaging machine that squares cartons into a case can run ten pusher carriages off one rail with each pusher driven independently, and a worn block swaps out without disturbing the others.
Is the Airtac LSH Linear Guide Rail LSH20HN10X1794S27AN-M6 the Right Guide?
Work down as well as up: if the duty is light and the space tight, AirTAC's LRM miniature guide is the smaller, cheaper route, but its load ratings are not published, so we will confirm them against your duty before you commit. Work across if the stroke is short and the priority is crossed-roller rigidity over long recirculating travel - that is LGC territory. Work up when moment governs: one step to LSH25 lifts MR from 0.27 to 0.44 kN.m, about 63 percent, whereas an extra carriage mainly fights tipping along the rail. Before ordering, tick off: complete set or part, size against load and moment together, carriage style and length, block count and rail length, accuracy and preload (tighter preload means less mounting error allowed), grease fitting, and the pairing code if you ever replace half a set.
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 LSH20HN10X1794S27AN-M6 FAQ
Per standard-length LSH20 carriage: basic dynamic load C 18.6 kN, basic static C0 28.6 kN, allowable static moments MR 0.27, MP 0.25 and My 0.25 kN.m. Normal-grade running parallelism over this rail length sits in the 12-37 um band. Mount with M5 screws at 882 N.cm on steel, 588 on cast iron or 441 on aluminium; keep the mounting shoulder at H 4.3 mm (H1 3.5, H2 5) and the corner radius at or under 0.5 mm. Each carriage takes 1.8 cm3 of Mobilux EP2 at first fill and 0.6 cm3 at top-up; re-grease every 100 km of travel or every 3 to 6 months, whichever comes first.
Yes - the code LSH20HN10X1794S27AN-M6 is a complete set: one 1794 mm rail plus ten square carriages, with bolt caps supplied for the mounting holes; drive each cap fully home or swarf will reach the ball circuit. Carriages are interchangeable across any LSH20 rail of this model, so a worn block can later be replaced with a carriage-only part - you would need the pairing code read off the original so the replacement matches the rail.
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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 LSH20HN10X1794S27AN-M6
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