
The AirTAC Airtac LSH Linear Guide Rail LSH30BK-HN-N-E-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.
Ordered when a cantilever or offset load needs real overturning capacity without touching the rail: LSH30BK-HN-N-E-M6 is one AirTAC square carriage, standard length, N accuracy, M6 lubrication fitting, E pairing code, and nothing else - the rail itself is not in this delivery. The four-row ball circuit places races at 45 degrees on both face and flank grooves, so the block that carries load radially also resists tipping in every direction, and slight misalignment of the mounting face is absorbed inside the carriage instead of loading the balls unevenly. Mind the geometry: size 30 runs on a rail 28 mm wide.
The moment figures are the story here: MR 0.66 kN.m, with MP and My at 0.67 kN.m per standard block, against a dynamic rating of 37.4 kN and static 55.0 kN. If your load still overruns these values, the long LSH30-L block lifts MR to 0.88 kN.m - about 33 percent - while dynamic capacity rises only around 22 percent to 45.7 kN, so for an overhung spindle or door the long body is usually the cheaper fix than the next size up. Static sits near 1.5 times dynamic across the range, but it is C, not C0, that sets travel life.
| Model | Airtac LSH Linear Guide Rail LSH30BK-HN-N-E-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.
Support the offset straightening-roll head of a tube mill on a single block whose 0.66 kN.m MR absorbs the overhung load through the full stroke.
Carry a radiography cell's sliding lead shield on E-coded carriages, where the panel's offset centre of gravity loads MP and My as much as the vertical weight.
Upgrade a stud-welding machine's vertical slide by bolting this block under the gun bracket, reusing the existing rail with its matching E pairing letter.
Match the part to the overhang before you buy: calculate the moment your load imposes at full extension and compare it with 0.66 kN.m MR; if it is close, take the long carriage or step up a size rather than run at the limit. Downward, LRM suits compact light-duty slides but has no published ratings - we confirm them on request. Across, LGC crossed-roller guides win where the stroke is short and rigidity matters more than long-travel life. The buying checklist: set, carriage or rail form; size 30 against load and moment together; square or flange body; standard or long block; count of carriages and rail length; N, H or P accuracy; preload with its cost in allowable mounting error; M6-family fitting; and the E pairing code for a rail you already own.
Quick checklist
Standard-length LSH30 block: dynamic C 37.4 kN, static C0 55.0 kN, allowable moments MR 0.66, MP 0.67, My 0.67 kN.m, N-grade running parallelism 12-37 um, M8 rail screws at 3040 / 2010 / 1470 N.cm for steel / cast iron / aluminium, Mobilux EP2 charge of 5.4 cm3 with 1.7 cm3 top-ups on the 100 km / 3-6 month cycle.
One carriage - no rail, no screws, no preload choice; the code holds accuracy and pairing only. The E letter must match the E on the LSH30 rail you already run, because AirTAC guides pair within the same model and the same letter. If the letter on a worn block is unreadable, send us the machine details or the old rail code by RFQ and we will identify the right match.
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.