Airtac LSH Linear Guide Rail LSH20HN1X144S12AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN1X144S12AN-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 length144 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 LSH20HN1X144S12AN-M6
LSH20HN1X144S12AN-M6 is a matched AirTAC LSH guide pair: a 144 mm rail drilled 12 mm from each end plus one square, standard-length size 20 carriage. The 45 degree four-row ball arrangement equalises capacity in all four loading directions and lets the block self-align against small errors in the seat it sits on. The 20 mm size code corresponds to a true rail width of 20 mm.
Because this set is supplied without preload (code A) it tolerates the widest mounting error in the table: 130 um of height difference and 25 um of parallelism per 500 mm of rail spacing. Should you later specify preload C for rigidity, the allowable height error tightens to 50 um - nearly three times stricter - so rigidity has to be paid for in machining accuracy. Ratings per carriage: 18.6 kN C, 28.6 kN C0, moment 0.27 kN.m MR.
Airtac LSH Linear Guide Rail LSH20HN1X144S12AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN1X144S12AN-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 | 144 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 LSH20HN1X144S12AN-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. |
| 1X144 | 1 carriage on a 144 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, 144 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 LSH20HN1X144S12AN-M6 Is Used
Spooler traverse guide
Winding wire evenly onto a spool needs a short reciprocating guide; the 144 mm rail gives a 100 mm-class stroke and the block's four-direction capacity absorbs winding tension.
Optical bench adjustment
On a photonics bench, one 144 mm axis aligns a lens or mirror; no preload keeps motion free for fine manual tuning, within a 25 um parallelism allowance per 500 mm of spacing.
Load-frame test fixture
A university test rig shifting specimens under a load cell uses this short axis; the 18.6 kN dynamic rating covers thousands of cycles before the 100 km grease interval falls due.
Is the Airtac LSH Linear Guide Rail LSH20HN1X144S12AN-M6 the Right Guide?
Decide between one size up and one carriage more using the numbers: LSH25 raises MR from 0.27 to 0.44 kN.m in a single step, while a second block on this rail counters tipping along the 144 mm stroke. If loads are light and the fitting is cramped, LRM steps down - we check its unpublished ratings against your duty before you commit. Short travel demanding crossed-roller rigidity points to LGC instead. Confirm before ordering: the form (this is a full set), size judged on C and MR together, carriage style and length, count and rail length, accuracy and preload balanced against the mounting tolerance they consume, grease fitting, and the pairing letter only if you are replacing a single part elsewhere.
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 LSH20HN1X144S12AN-M6 FAQ
Ratings per block: dynamic 18.6 kN, static 28.6 kN, moments 0.27 kN.m MR, 0.25 kN.m MP, 0.25 kN.m My. Running parallelism at normal grade: 12 to 37 um across the length band. Mounting: M5 cap screws at 882 / 588 / 441 N.cm on steel / cast iron / aluminium, with the corner radius at the rail shoulder no more than 0.5 mm. Lubrication: 1.8 cm3 first charge, 0.6 cm3 top-up through the M6 fitting, interval 100 km of travel or 3 to 6 months.
Code A means the balls run with the lightest contact, giving low friction and the widest installation window: 130 um height and 25 um parallelism per 500 mm of spacing. B light and C medium raise stiffness but squeeze those to 85/20 and 50/18 um, so the seat must be machined more precisely. Preload is chosen in the order code at the factory and cannot be adjusted on site - specify B or C in the code when the duty demands it.
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 LSH20HN1X144S12AN-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.