Airtac LSH Linear Guide Rail LSH20HN1X160S20AH-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN1X160S20AH-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 length160 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 LSH20HN1X160S20AH-M6
This is a complete LSH20 linear guide set: one hardened profile rail cut to 160 mm with a 20 mm end offset, plus one square (compact) standard-length carriage, delivered together as a matched pair. The carriage carries four rows of recirculating balls that meet the X-shaped arc raceways at 45 degree contact angles, so load capacity is equal up, down and sideways, and small mounting-surface errors are absorbed inside the carriage instead of causing binding. At size 20 the rail is genuinely 20 mm wide; only above size 20 does the AirTAC code stop matching the width.
This example is the H (high) accuracy grade with no preload and an M6 grease nipple. Per carriage the catalogue ratings are C 18.6 kN dynamic, C0 28.6 kN static, and moments of 0.27 kN.m (MR), 0.25 kN.m (MP) and 0.25 kN.m (My). The H grade gives running parallelism of 7-28 um over the rail length band, against 12-37 um for N grade. Because the preload is A (none), the guide tolerates a height error S of 130 um between rails at 500 mm spacing; ordering medium preload C on the same size would cut that allowance to 50 um, so the wide installation latitude here is a real benefit on welded or milled fabrications.
Airtac LSH Linear Guide Rail LSH20HN1X160S20AH-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN1X160S20AH-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 | 160 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 LSH20HN1X160S20AH-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. |
| 1X160 | 1 carriage on a 160 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, 160 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 LSH20HN1X160S20AH-M6 Is Used
Optical inspection stage
A benchtop measuring machine moving a camera or probe across a small window; the H grade's 7-28 um running parallelism keeps the optical axis steady over the whole travel.
Laboratory liquid handling
A reagent dispensing head traversing microplates on a compact deck. The square carriage suits a low-profile slide and the 18.6 kN rating is far above the few newtons actually moved.
Laser focus axis
A focusing carriage on a marking laser, where H-grade parallelism limits beam tilt drift and the M6 nipple allows grease top-ups between production runs.
Is the Airtac LSH Linear Guide Rail LSH20HN1X160S20AH-M6 the Right Guide?
Size the guide on moment as well as load. C 18.6 kN handles the force, but if the load overhangs the carriage, MR 0.27 kN.m is usually the number that decides. A long LSH20 carriage lifts MR to 0.35 kN.m, about 30 percent more moment capacity for only 19 percent more dynamic rating; one size up to LSH25 N reaches 0.44 kN.m in a single part. If the duty is light and the envelope tight, step down to the AirTAC LRM series, whose load ratings are not published, so we confirm them for you; for short travel needing crossed-roller rigidity rather than long recirculating travel, step across to LGC. Match checklist: form (this is a complete set with one carriage), size by load and moment, square carriage standard length, 160 mm rail, H accuracy, no preload, M6 fitting. If you are replacing a part rather than building new, read the pairing code off the old component.
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 LSH20HN1X160S20AH-M6 FAQ
Per carriage (standard length): dynamic C 18.6 kN, static C0 28.6 kN, allowable moments MR 0.27, MP 0.25, My 0.25 kN.m. H grade running parallelism is 7-28 um over the rail length band. Rail screws are M5 torqued to 882 N.cm in steel, 588 N.cm in cast iron, 441 N.cm in aluminium. Grease is 1.8 cm3 first charge per carriage, 0.6 cm3 top-up, renewed every 100 km of travel or every 3 to 6 months; carriages ship pre-filled with Mobilux EP2.
This set is preload A (none). At size 20 that allows a parallelism error P of 25 um and a height error S of 130 um between rails at 500 mm spacing, scaled proportionally to actual spacing. Light preload B tightens the height allowance to 85 um and medium C to 50 um, and a tighter grade also demands a more accurate mounting surface. You gain rigidity with preload, but you pay for it in installation precision; with preload A you keep the widest tolerance.
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 LSH20HN1X160S20AH-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.