
The AirTAC Airtac LSH Linear Guide Rail LSH30BK-HN-N-D-M6 is a standard-type profile linear guide on a 28 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.
This is the replacement block for a worn LSH30 axis: AirTAC LSH30BK-HN-N-D-M6, one square carriage in the standard length, normal accuracy, shipped with an M6 nipple in the side and the D pairing letter in its code. It ships alone - the 28 mm profile rail it rides on is a separate order under the same letter. Four rows of balls circulate through 45 degree arc raceways with two-point contact, keeping the block equal in all four load directions and self-aligning over small mounting errors. Carriages leave the factory pre-filled with Mobilux EP2, and the side port suits this square body - AirTAC advises against side fittings on flange-type carriages, where the nipple can foul.
Plan the service around 5.4 cm3 of first charge and 1.7 cm3 per top-up, every 100 km of travel or 3 to 6 months. That distance arrives faster than it reads: a 300 mm stroke cycling once per second covers 100 km in roughly two weeks of continuous running, so on a fast packaging axis the calendar interval rarely binds first. Structurally the block is rated 37.4 kN dynamic and 55.0 kN static per carriage, with 0.66 / 0.67 / 0.67 kN.m moments for MR / MP / My.
| Model | Airtac LSH Linear Guide Rail LSH30BK-HN-N-D-M6 |
|---|---|
| Series | LSH Series Linear Guide |
| Supplied as | Carriage / block only |
| Construction | Recirculating ball, four ball rows on X-shaped raceways at a 45° contact angle, self-aligning |
| Size code | LSH30 |
| Rail width | 28 mm (the size code is not the rail width above size 20) |
| Carriage style | Square (compact) |
| Carriage length | Standard carriage |
| Basic dynamic load rating C | 37.4 kN per carriage |
|---|---|
| Basic static load rating C0 | 55.0 kN per carriage |
| Allowable static moment | MR 0.66 / MP 0.67 / My 0.67 kN·m |
| Accuracy grade | N — normal grade |
| Mounting screws | M8 — 3040 N·cm into steel, 2010 cast iron, 1470 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, matched by the pairing code |
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. This item is a carriage only. Order a complete set if you also need a rail.
| LSH | LSH Series Linear Guide. |
|---|---|
| 30 | Size code — note the rail is 28 mm wide, not 30 mm. |
| BK | Carriage / block only — no rail supplied. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| N | Standard carriage. |
| N | N — normal grade. |
| Pairing code | Rails and carriages must share a pairing code. Take it from the original part when replacing. |
| -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 | Carriage / block only |
|---|---|
| Rail | No — not supplied with this item |
| Carriage | Yes, one |
This is a carriage on its own. NO RAIL IS INCLUDED. 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.
Swap the dried-out carriage on a film-web tensioning slide of a wrapping machine during a planned stop, then pump 1.7 cm3 through the M6 nipple before restart.
Replace a tired block under a warehouse shuttle's lifting bridge; the standard-length body keeps the existing mounting holes, so the carriage plate needs no re-drilling.
Hold this as the spare for a CO2 laser cutter's X-carriage and set a 100 km or quarterly greasing habit, whichever arrives first on that fast axis.
Treat this as the maintenance route: if the existing rail still shows a clean, even grease film and no flaking, a carriage change at roughly a quarter of the price of a full LSH30 set is the economic fix, provided you know the D pairing letter. If the rail itself is damaged, step up to a complete set instead. For lighter, compact duties consider LRM - its load ratings are not published, so we confirm them for you - and for short-stroke, high-rigidity stations consider LGC crossed rollers. Order-time checklist: form (this carriage only), size 30 checked against load and moment, square versus flange body, standard versus long length, carriages per rail and rail length, accuracy grade, preload with the installation-tolerance trade-off, M6-family fitting, and the pairing letter.
Quick checklist
Use Mobilux EP2 or an equivalent: 5.4 cm3 first charge, 1.7 cm3 top-up, every 100 km of travel or every 3 to 6 months, and stroke the block at least three carriage-lengths twice after greasing until an even film shows along the rail. Rail screws are M8 at 3040 / 2010 / 1470 N.cm on steel / cast iron / aluminium. For the record, this standard block carries C 37.4 kN, C0 55.0 kN and moments of 0.66 / 0.67 / 0.67 kN.m at N-grade accuracy (12-37 um parallelism band).
No - carriage only. No rail, no bolt caps and no preload selection come in the box. The D near the end of the code is the pairing letter, and it must match the letter on your LSH30 rail for the two to run together; copy it from the old block's code or the original delivery note. Rails in any length up to the 4030 mm Lmax can be ordered separately under the same letter.
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.