Airtac LSH Linear Guide Rail LSH20HN1X170S20AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN1X170S20AN-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 length170 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 LSH20HN1X170S20AN-M6
The LSH20HN1X170S20AN-M6 is one complete guide: a 170 mm hardened profile rail, drilled 20 mm from each end for its M5 fixing screws, carrying a single square standard-length ball carriage. Four rows of balls bear on X-arranged 45 degree raceways, so the carriage resists lift-off, side loads and roll moments equally, and slight misalignment of the mating surface is taken up inside the carriage rather than causing stick-slip. The size code 20 matches the true 20 mm rail width here; that coincidence ends above size 20, so always verify against the catalogue when moving up.
At normal accuracy the running parallelism band is 12-37 um; preload is A (none) and the carriage takes grease through an M6 nipple. Per-carriage ratings are C 18.6 kN, C0 28.6 kN, MR 0.27 kN.m, MP 0.25 kN.m, My 0.25 kN.m. The 170 mm rail sits far below the 4040 mm maximum length for size 20, and rails up to 4000 mm are listed, so this short length suits compact single-axis slides where a longer rail would only add cost and machining.
Airtac LSH Linear Guide Rail LSH20HN1X170S20AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN1X170S20AN-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 | 170 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 LSH20HN1X170S20AN-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. |
| 1X170 | 1 carriage on a 170 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, 170 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 LSH20HN1X170S20AN-M6 Is Used
Fixture clamp slide
A welding fixture slide that clamps a bracket into position, using the short hardened rail where a full-length guide would overhang the fixture plate and collect weld spatter.
High-cycle cartoner pusher
A pusher making one 100 mm stroke per second covers 100 km in under six days of continuous running, which is exactly why the grease interval on this guide is distance-based rather than calendar-based.
Router table fence micro-adjust
A micro-adjust fence carriage on a small woodworking router table, where the short profile rail shrugs off dusty duty better than a dovetail slide and re-greases through its M6 nipple.
Is the Airtac LSH Linear Guide Rail LSH20HN1X170S20AN-M6 the Right Guide?
Work the numbers in this order: force, then moment, then envelope. If the load sits close over the carriage, C 18.6 kN decides and this set is generous. If the load cantilevers, MR 0.27 kN.m decides; the long LSH20 carriage lifts that to 0.35 kN.m, a 30 percent gain for a 19 percent gain in C, while a second carriage on the same rail addresses tipping along the travel instead of overhang. Tight quarters with light loads point down to the LRM series (ratings not published; we confirm them by enquiry); short travel needing crossed-roller stiffness points across to LGC. Checklist: complete set form, one square standard carriage, 170 mm rail, N accuracy, no preload, M6 fitting, and if this replaces a worn part, match the pairing code.
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 LSH20HN1X170S20AN-M6 FAQ
Per carriage: dynamic C 18.6 kN, static C0 28.6 kN, moments MR 0.27, MP 0.25, My 0.25 kN.m. Accuracy N gives 12-37 um running parallelism across the rail length band. Mount with M5 screws at 882 N.cm on steel, 588 N.cm on cast iron, 441 N.cm on aluminium. Grease per carriage: 1.8 cm3 first charge, 0.6 cm3 top-up, every 100 km of travel or every 3 to 6 months, Mobilux EP2 or equivalent.
Preload A (none) maximises the allowable installation error: at 500 mm rail spacing, size 20 accepts 25 um of parallelism error P and 130 um of height error S, scaled proportionally to actual spacing. Light preload B would cut the height allowance to 85 um and medium C to 50 um, so rigidity from preload costs mounting precision. Note also that how flat you pull the rail against its datum face and how fully you torque the M5 screws strongly affects the accuracy you actually achieve.
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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 LSH20HN1X170S20AN-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.