Airtac LSH Linear Guide Rail LSH20F1N5X1620S30BN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20F1N5X1620S30BN-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
- Carriages5
- Rail length1620 mm
- AccuracyN — normal grade
- PreloadB — light 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 LSH20F1N5X1620S30BN-M6
This is the complete LSH20 linear guide set LSH20F1N5X1620S30BN-M6: one 1620 mm profile rail carrying five F1 top-flange carriages of standard length, cut with a 30 mm end-hole offset, light B preload, normal N accuracy and an M6 grease nipple on every block. The box holds the rail, the five carriages and the bolt caps for the screw holes; nothing else is needed to build the axis. Four rows of balls run in X-shaped 45 degree arc raceways with two-point contact, so each block carries equal load up, down and sideways and self-aligns over slight mounting-surface error. Size 20 means a true 20 mm rail width.
Each carriage is rated 18.6 kN dynamic C, 28.6 kN static C0 and 0.27/0.25/0.25 kN.m moment MR/MP/My. Five blocks on one rail share the travelling load, which suits a long carry beam whose weight would swamp a single block. The 1620 mm rail sits well inside the 4040 mm maximum length for size 20, leaving room to re-cut or re-position. Note the trade-off: light preload B tightens the allowable height error at 500 mm spacing from 130 um to 85 um, so the seat under the rail must be flatter than for a zero-preload build.
Airtac LSH Linear Guide Rail LSH20F1N5X1620S30BN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20F1N5X1620S30BN-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 | Flange, top mounting |
| Carriage length | Standard carriage |
| Carriages supplied | 5 |
| Rail length | 1620 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 | B — light 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 LSH20F1N5X1620S30BN-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. |
| 5X1620 | 5 carriages on a 1620 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| B | B — light 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, 1620 mm |
| Carriage | Yes, 5 |
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 LSH20F1N5X1620S30BN-M6 Is Used
Aluminium window-profile handling beam
A five-block F1 run under a long carry beam on a window-fabrication line spreads the weight of a 3 m profile instead of concentrating it at two points, keeping the beam flat as it indexes between saw and machining stations.
Large-format display panel scanner
A scanning bridge over an LCD panel inspection line rides on the five carriages; top-flange mounting lets the bridge deck be bolted from above where a bottom-flange block could not be reached.
Granite-plate metrology bridge
On a QC bench, the light B preload gives the measuring bridge enough rigidity for repeatable probing while the normal N grade holds running parallelism within its 12-37 um band over the measured span.
Is the Airtac LSH Linear Guide Rail LSH20F1N5X1620S30BN-M6 the Right Guide?
Start from the moment, not just the load: a long beam on five F1 blocks is governed by how far the load sits from the nearest block. If the envelope is tight and the duty light, step down to the LRM series, but its load ratings are not published, so ask us to confirm them against your duty before committing. If moment still governs, an LSH25 block lifts MR from 0.27 to 0.44 kN.m, or simply spread the five blocks further apart. Where travel is short and you need crossed-roller rigidity rather than long recirculating travel, compare the LGC series. Match checklist: form (set, carriage or rail), size chosen by load AND moment, carriage style and length, block count and rail length, accuracy grade and preload weighed against the installation tolerance you can actually hold, grease fitting, and the pairing code if you are replacing a part. Availability and delivery are confirmed on enquiry.
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 LSH20F1N5X1620S30BN-M6 FAQ
Per standard-length LSH20 carriage: dynamic C 18.6 kN, static C0 28.6 kN, moments MR 0.27, MP 0.25 and My 0.25 kN.m. Normal N accuracy gives a running parallelism band of 12-37 um depending on rail length. Rail screws are M5, torqued to 882 N.cm in steel, 588 in cast iron, 441 in aluminium. Grease: 1.8 cm3 first charge and 0.6 cm3 top-up of Mobilux EP2 per block, refreshed every 100 km of travel or every 3 to 6 months.
Preload B stiffens the guide but narrows the tolerance the mounting surface may have. At 500 mm rail spacing the allowable parallelism error falls from 25 um with no preload to 20 um, and the allowable height error from 130 um to 85 um; both scale with actual spacing. Self-alignment absorbs only error within these values - it is not a licence for a rough seat. Whether the rail is pulled flat against its datum face and torqued correctly decides the accuracy you actually get.
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 LSH20F1N5X1620S30BN-M6
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