Airtac LSH Linear Guide Rail LSH20HN1X390S15AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN1X390S15AN-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 length390 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 LSH20HN1X390S15AN-M6
Order LSH20HN1X390S15AN-M6 and you receive the complete pair: 390 mm of size 20 rail (a full 20 mm wide) with a single square, standard-length carriage mounted on it, and the first bolt holes only 15 mm from each end. The four-row, 45 degree X-shaped ball arrangement gives the carriage the same capacity whether it is pressed down, lifted or shoved sideways, and lets minor misalignment of the mounting face be taken up inside the carriage rather than showing up as running drag.
The N grade holds 12-37 um of running parallelism, which suits gantries and handling axes whose straightness is set mainly by a machined base. Dynamic rating is 18.6 kN and static 28.6 kN per carriage, with moments of 0.27 / 0.25 / 0.25 kN.m. There is a repair-economy angle too: a replacement block for this rail costs roughly a quarter of a new complete set, so when a carriage eventually wears you renew the block and keep the rail, provided the running surface is still sound.
Airtac LSH Linear Guide Rail LSH20HN1X390S15AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN1X390S15AN-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 | 390 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 LSH20HN1X390S15AN-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. |
| 1X390 | 1 carriage on a 390 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, 390 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 LSH20HN1X390S15AN-M6 Is Used
Rejection gate over a belt line
A gate or kicker sweeping rejects off a food or pharmaceutical belt across a 390 mm span; the self-aligning carriage tolerates a welded frame's small errors.
Slab-flattening router sled
A router sled riding a 390 mm rail pair over a live-edge slab, with M5 screws torqued to 441 N.cm into the aluminium sled frame keeping everything seated.
Test handler transport axis
Moving device boards between sockets on an automated test handler, where the 12-37 um N grade and 18.6 kN dynamic rating suit continuous indexing.
Is the Airtac LSH Linear Guide Rail LSH20HN1X390S15AN-M6 the Right Guide?
Run through the match list: form is a complete set here, so no pairing code is needed at purchase; size 20 chosen on load and moment together; square standard carriage; one block on 390 mm with a 15 mm end offset; N accuracy; no preload; M6 lubrication. Trade down to LRM for light duties and tight envelopes - its ratings are unlisted, so we confirm them by enquiry. Trade up when moment rules: LSH25 raises MR from 0.27 to 0.44 kN.m, or add a second block on the same rail to fight tipping along the stroke. Cross to LGC only for short travels where crossed-roller rigidity beats recirculating-ball smoothness. Note the pairing code from any part you buy so future spares match.
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 LSH20HN1X390S15AN-M6 FAQ
Size 20, standard-length carriage: C 18.6 kN dynamic, C0 28.6 kN static, MR / MP / My 0.27 / 0.25 / 0.25 kN.m; N-grade running parallelism 12-37 um; M5 rail screws at 882 / 588 / 441 N.cm on steel / cast iron / aluminium; 1.8 cm3 Mobilux EP2 first fill with 0.6 cm3 refills on a 100 km or 3-6 month cycle. Mounting shoulder 4.3 mm, corner radius 0.5 mm max.
Yes within the model: LSH20 carriages are interchangeable on LSH20 rails, so an H or P block ordered later will run on this N-grade rail and keep its own smoothness, preload and accuracy, and preloaded B or C blocks are orderable. Be aware that preloading narrows installation latitude - at 500 mm spacing the allowable height error falls from 130 um (no preload) to 85 um at B and 50 um at C. For spares, record the pairing code so any replacement carriage or rail matches this set.
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 LSH20HN1X390S15AN-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.