Airtac LSH Linear Guide Rail LSH20HN2X460S20AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN2X460S20AN-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
- Carriages2
- Rail length460 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 LSH20HN2X460S20AN-M6
The LSH20HN2X460S20AN-M6 is a matched complete set rather than a bag of parts: a 460 mm hardened profile rail with two square standard-length carriages already fitted and running smooth. Size 20 here means a true rail width of 20 mm, and the carriages ride on four rows of recirculating balls whose X-shaped raceways meet the rail at 45 degrees, giving equal load capacity in all four radial directions. Because that geometry is built into the carriage, slight flatness or parallelism faults in the base are taken up internally instead of causing the guide to jam.
The 20 mm first mounting-hole offset leaves 20 mm of clear rail at each end before the first bolt, useful when end stops or bellows must sit at the extremities. Static rating C0 28.6 kN runs about 1.5 times the dynamic rating C 18.6 kN, which is the catalogue pattern right across the range; size on C for travel life and reserve C0 for static checks such as crash or clamped-at-rest loads.
Airtac LSH Linear Guide Rail LSH20HN2X460S20AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN2X460S20AN-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 | 2 |
| Rail length | 460 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 LSH20HN2X460S20AN-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. |
| 2X460 | 2 carriages on a 460 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, 460 mm |
| Carriage | Yes, 2 |
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 LSH20HN2X460S20AN-M6 Is Used
Benchtop CNC router gantry
A light-industrial CNC router uses this 460 mm axis under the gantry plate, where the twin blocks keep the spindle mount flat as it traverses the working area.
Vision inspection carriage
On an electronics line, a camera carriage rides the rail above a parts tray, and the two-block layout stops the optics from yawing between inspection frames.
Retrofitting an engraving machine
Replacing worn dovetail slides on an older engraving machine with this rolling set needs only an M5 bolt-down and periodic greasing through the M6 fittings.
Is the Airtac LSH Linear Guide Rail LSH20HN2X460S20AN-M6 the Right Guide?
Start from the duty: dynamic rating governs travel life, moment rating governs cantilevers. When the envelope is too small for LSH20, LRM is the smaller AirTAC guide, but its load ratings are not published, so confirm them with us first. When moment is the binding constraint, LSH25 N raises MR from 0.27 to 0.44 kN.m, roughly 63 percent, for a one-part change; where travel is short and crossed-roller stiffness matters more than long travel, LGC is the across-the-range alternative. Before ordering, check the base corner radius does not exceed 0.5 mm at size 20. Checklist: confirm the form you need (this is a complete set), size by load and moment, carriage style and length, block count and rail length, accuracy grade and preload against your installation tolerance, grease fitting, and the pairing code if you are ever replacing a single part.
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 LSH20HN2X460S20AN-M6 FAQ
Dynamic C 18.6 kN and static C0 28.6 kN per block, with allowable moments MR 0.27 kN.m, MP 0.25 kN.m and My 0.25 kN.m. Normal-grade running parallelism spans 12-37 um across the rail length bands. Fix the rail with M5 screws torqued to 882 N.cm in steel, 588 N.cm in cast iron or 441 N.cm in aluminium. Lubrication: 1.8 cm3 first charge per standard carriage, 0.6 cm3 top-up, repeated every 100 km of travel or every 3 to 6 months with Mobilux EP2 or an equivalent.
The set contains the 460 mm rail, two square carriages and the bolt caps for the rail holes; it ships without preload (grade A). That grade accepts up to 25 um parallelism and 130 um height error at 500 mm spacing, so a milled surface is usually adequate. If you later want preload B or C, the same rail accepts preloaded carriages, but allowable height error drops to 85 um and then 50 um, so plan the machining before upgrading.
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 LSH20HN2X460S20AN-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.