Airtac LSH Linear Guide Rail LSH20HN1X100S20CN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN1X100S20CN-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 length100 mm
- AccuracyN — normal grade
- PreloadC — medium 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 LSH20HN1X100S20CN-M6
This code, LSH20HN1X100S20CN-M6, specifies a complete size 20 LSH set built for stiffness: one 100 mm rail of true 20 mm width, a standard-length square carriage, normal accuracy and - the defining choice - medium preload, code C. The same four-row, 45 degree X-set ball geometry gives equal capacity in all four directions and self-alignment on a slightly imperfect surface; what preload adds is the removal of internal clearance, so the carriage does not rock or drift when the drive reverses.
Ratings are unchanged by preload: 18.6 kN dynamic, 28.6 kN static, moments 0.27 / 0.25 / 0.25 kN.m for MR / MP / My. What medium preload changes is the installation budget - at 500 mm spacing the permitted height error tightens from 130 um to 50 um, close to 2.6 times stricter, with the parallelism allowance moving from 25 to 18 um. On a short 100 mm rail this matters less than on a long one, which makes a compact preloaded axis like this an easy first step into preloaded linear motion.
Airtac LSH Linear Guide Rail LSH20HN1X100S20CN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN1X100S20CN-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 | 100 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 | C — medium 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 LSH20HN1X100S20CN-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. |
| 1X100 | 1 carriage on a 100 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| C | C — medium 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, 100 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 LSH20HN1X100S20CN-M6 Is Used
Dispensing valve slide
Guiding a syringe-dispensing valve over short repeated shots; preload C removes the clearance that would let the nozzle overshoot on each reversal, so bead placement stays consistent from the first dot to the last.
Machine-vision focus stage
A camera focus axis where any lost motion shows up as soft focus and unreliable inspection results; the preloaded carriage holds the lens train against both gravity and vibration without backlash.
High-cycle test socket indexer
A short-stroke feed that presents samples into a test socket hundreds of times an hour; preload keeps the contact point repeatable while the 18.6 kN dynamic rating dwarfs the applied load, so the guide is never the limiting element.
Is the Airtac LSH Linear Guide Rail LSH20HN1X100S20CN-M6 the Right Guide?
Preload is the first decision here, not the last. Medium preload (C) removes clearance for reversing drives, but it tightens the installation tolerance: at 500 mm rail spacing the allowable height error drops from 130 um with no preload to 50 um at grade C, and the parallelism allowance from 25 to 18 um, scaled to your actual span. If your baseplate cannot hold that, choose the A-preload version of the same set. Then check the numbers both ways: the 18.6 kN dynamic rating governs travel life (C0 at 28.6 kN is roughly 1.5 times higher and is a static limit only), and if moment on a cantilevered tool decides the size, a long L-carriage raises MR from 0.27 to 0.35 kN.m while a step to LSH25 raises it to 0.44. For light, compact duties compare LRM (its ratings are unpublished, so we confirm them for you); for short-travel, high-stiffness work compare LGC. Checklist before you buy: form (a complete set with rail), size, carriage style and length, count, rail length and offset, accuracy and preload pair, M6 grease fitting, and the pairing code when ordering 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 LSH20HN1X100S20CN-M6 FAQ
The standard carriage carries a dynamic rating of 18.6 kN against a static rating of 28.6 kN, with moment limits of 0.27 kN.m (MR), 0.25 kN.m (MP) and 0.25 kN.m (My). N-grade running parallelism spans 12 to 37 um across the rail-length range. Fasten the rail using M5 bolts at 882 / 588 / 441 N.cm for steel / cast iron / aluminium beds. Lubrication is 1.8 cm3 first charge and 0.6 cm3 top-up per carriage of Mobilux EP2 or equivalent, refreshed every 100 km travelled or every 3 to 6 months.
Stiffness is not free. Grade C bias removes clearance under reversing loads, but at 500 mm rail spacing the allowable height error S falls from 130 um on a floating fit to 50 um here, and the parallelism allowance P from 25 to 18 um, both scaled to your real span. The corner radius of the mounting shoulders must stay at or below 0.5 mm, and whether the rail is pulled flat against the datum face and torqued correctly has a large effect on the accuracy you actually achieve. If your machined bed cannot hold these numbers, order the A-preload variant of the same set instead.
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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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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LSH Linear Guide Rail LSH20HN1X100S20CN-M6
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