
The AirTAC Airtac LSH Linear Guide Rail LSH30BK-HL-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.
Order this when you already know the letter: E. The LSH30BK-HL-N-E-M6 is a single long square carriage for AirTAC's LSH30 range, normal accuracy, M6 grease fitting, matched to rails that carry pairing code E. It is not a guide and does not include a rail; there is also no preload digit in a BK code, since preload belongs to the matched assembly. Inside the block, four rows of balls circulate through 45 degree X-arranged arc raceways, carrying load equally in every direction and absorbing minor mounting error within the limits the catalogue allows - self-alignment is a convenience, not an unlimited one.
Refit logic: LSH carriages of one model interchange across that model's rails, keeping their smoothness, preload and accuracy, so a sound 28 mm LSH30 rail plus this block equals a renewed axis. Ratings are per carriage: C 45.7 kN, C0 73.1 kN, moments 0.88 / 0.91 / 0.91 kN.m. The block arrives pre-filled with Mobilux EP2; top up with 2.2 cm3 at each service interval.
| Model | Airtac LSH Linear Guide Rail LSH30BK-HL-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 | Long carriage |
| Basic dynamic load rating C | 45.7 kN per carriage |
|---|---|
| Basic static load rating C0 | 73.1 kN per carriage |
| Allowable static moment | MR 0.88 / MP 0.91 / My 0.91 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. |
| L | Long 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.
A CO2 laser's flying-optic gantry loses accuracy first in its blocks; re-carriaging the 28 mm LSH30 rails with code E blocks restores running quality within the N-grade 12-37 um parallelism band without tearing out the rail alignment.
An indexing assembly bench that creeps out of position mid-shift usually has a tired block, not a tired rail; a like-for-like code E carriage restores indexing repeatability during a planned stop.
Maintenance planners keep one code E carriage on the shelf for each rail letter in the plant, because a mismatched letter means re-ordering and lost production; holding the correct pairing letter is the whole trick.
Decide by duty, not by the number printed on the old part. A lighter, tighter axis could drop to LRM - we will confirm ratings with you, because LRM's are not published. If your moment demand has grown past what 0.88 kN.m of MR allows, the fix is a bigger section (LSH35, to order) or a second block on the same rail to resist tipping along the travel. Short strokes that need crossed-roller stiffness point to LGC instead. Checklist: carriage-only form; load and moment both inside rating; square long body as coded; how many blocks ride each rail and the rail's length; accuracy N and the preload of the parent set, with the rule that higher preload tolerates less installation error; M6 fitting; and pairing code E, which must equal the letter stamped on your rail.
Quick checklist
Per block: basic dynamic rating C 45.7 kN; basic static rating C0 73.1 kN; allowable moments MR 0.88, MP 0.91 and My 0.91 kN.m; running parallelism for the N grade spans 12 to 37 um across the rail length range. The rail underneath mounts on M8 screws - 3040 N.cm steel, 2010 cast iron, 1470 aluminium. Lubrication: 7.2 cm3 first charge, 2.2 cm3 per top-up, re-grease every 100 km of travel or every 3 to 6 months.
The box holds one long square carriage with an M6 fitting and pairing code E - no rail, no screws, no preload grade. Fit it only to an LSH30 rail stamped with the same letter E; that is what the pairing code exists for. Within the LSH family a carriage of a given model runs on any rail of that same model, but nothing here implies use on another maker's rail. If the letter on your old part is illegible, send a photo of the rail's end stamp or its length and end-hole offset and we will match it.
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.