
The AirTAC Airtac LSH Linear Guide Rail LSH20HN1X160S20AN-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.
A complete linear guide in the LSH20 size, supplied here as rail and carriage together: a 160 mm profile rail with the first bolt hole 20 mm from each end, carrying one square standard-length recirculating-ball carriage. Four rows of balls run in opposed 45 degree arc grooves, giving the same load rating in every direction and a self-aligning behaviour that forgives slight machining error in the base. The rail width really is 20 mm at this size; the code-to-width mismatch only starts at LSH25, whose rail measures 23 mm.
Accuracy is N (normal), running parallelism 12-37 um across the rail length band, with no preload and an M6 grease nipple. Ratings per carriage: C 18.6 kN dynamic, C0 28.6 kN static, moments MR 0.27, MP 0.25, My 0.25 kN.m. Note that C, not the larger C0, governs travel life. The static figure runs roughly one and a half times the dynamic one across this range and matters for shock and holding conditions, not for wear. For a general automation slide at N grade, this is the value configuration in the range.
| Model | Airtac LSH Linear Guide Rail LSH20HN1X160S20AN-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 | 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.
| 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. |
| 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. |
| 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.
Escorting parts from a vibratory bowl feeder to an assembly nest; N grade parallelism is ample at this scale and a single-carriage slide keeps the station footprint small.
A pusher or gate on a snack-food wrapper traversing about 100 mm per pack; the 18.6 kN rating dwarfs the actual load and a grease top-up through the M6 nipple takes seconds.
Shuttling PCB pallets between test heads, where normal accuracy and no preload keep the build cost down without affecting electrical test repeatability.
Start from the duty cycle. For continuous travel, size on C 18.6 kN; for a mostly static or shock-loaded station, check C0 28.6 kN and the 0.27 kN.m moment rating instead. Moment governs overhangs: the long LSH20 carriage raises MR to 0.35 kN.m, and stepping up to LSH25 N reaches 0.44 kN.m. Light duty in a tight space suits the AirTAC LRM series, whose ratings we confirm by enquiry since they are not published; short, stiff, crossed-roller duty suits LGC. Before ordering, confirm: this form is a complete set (rail plus one carriage), the 160 mm rail length covers your stroke with margin, N accuracy is acceptable, preload A fits your mounting precision, and the M6 fitting suits your regreasing routine.
Quick checklist
Per carriage, standard length: dynamic C 18.6 kN, static C0 28.6 kN, moments MR 0.27, MP 0.25, My 0.25 kN.m. N grade runs at 12-37 um parallelism over the rail length band. Fix the rail with M5 screws at 882 N.cm (steel), 588 N.cm (cast iron) or 441 N.cm (aluminium). Lubrication: 1.8 cm3 first charge and 0.6 cm3 top-up per carriage with Mobilux EP2 or equivalent, repeated every 100 km of travel or every 3 to 6 months.
One hardened 160 mm rail with 20 mm end offsets and its mounting hole pattern, and one square standard-length carriage fitted with an M6 grease nipple, plus the rail bolt caps. Both pieces belong to the same LSH20 model, so the carriage is matched to the rail at the factory. The box contains a working complete guide, not a loose part, but it is one carriage rather than two, so cantilevered loads should be checked against MR 0.27 kN.m.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.