The AirTAC Airtac LSH Linear Guide Rail LSH30BK-HL-H-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 SKU, LSH30BK-HL-H-D-M6, is the long-form square carriage of the AirTAC LSH30 series on its own. The rail is not part of the delivery - order an LSH30 rail carrying the same pairing letter if you do not already have one. Within the block, four rows of recirculating balls run in crossed 45 degree arc grooves with two contact points each, so pushing up, pulling down or loading sideways all draw on the same capacity, and minor unevenness in the mounting face is absorbed instead of turning into binding. Size 30 rails measure 28 mm across, not 30.
The carriage arrives pre-filled with Mobilux EP2, and the M6 nipple on its side accepts a 2.2 cm3 top-up after the 7.2 cm3 initial charge for the long body. Re-grease every 100 km of travel or every 3 to 6 months, whichever comes first - a 300 mm stroke cycling once per second covers 100 km in roughly two weeks, so distance usually binds before the calendar. Ratings per carriage: 45.7 kN dynamic, 73.1 kN static, moments 0.88 / 0.91 / 0.91 kN.m. Accuracy grade H, pairing code D.
| Model | Airtac LSH Linear Guide Rail LSH30BK-HL-H-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 | 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 | H — high 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. |
| H | H — high 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 metrology bench carrying a heavy camera and lens stack on a short bridge uses the long body's moment ratings to keep the optics from nodding as the stage sweeps.
During a scheduled stop on a stamping line, a technician tops up each long carriage with 2.2 cm3 of Mobilux EP2 through the M6 nipple and strokes it several carriage-lengths to spread the film.
Reconditioning a square-rail servo actuator means ordering carriages by pairing code; this block slots into the carriage plate already drilled for a size 30 guide.
Choose from three directions. If loads are modest and space scarce, step down to the LRM roller guide and let us verify its unpublished ratings against your duty. If your lever arm is long, step up: an LSH35 guide, available to order, or a second long carriage, raises moment headroom more per change than swapping in standard blocks. If the stroke is short and the job wants crossed-roller rigidity, step across to LGC. Then run the match list: carriage-only form acknowledged, size chosen on load and moment, square long style confirmed, block count and rail length set, accuracy and preload grades balanced against the tighter installation tolerance they demand, M6 fitting, and pairing code D matched to the rail.
Quick checklist
Size 30, long square carriage, accuracy grade H. Dynamic rating C 45.7 kN; static rating C0 73.1 kN; allowable static moments MR 0.88 kN.m, MP 0.91 kN.m, My 0.91 kN.m. H-grade running parallelism spans 7 to 28 um over the rail length range. The matching rail is fixed with M8 screws at 3040 / 2010 / 1470 N.cm in steel, cast iron and aluminium respectively. Grease: 7.2 cm3 first charge per long carriage, 2.2 cm3 top-up, interval 100 km of travel or 3 to 6 months, Mobilux EP2 or equivalent.
It does not. You get a single long square carriage for size 30 rail, accuracy grade H, with its M6 nipple fitted. The rail, its bolt caps and the mounting screws are separate line items. The pairing letter D is the link: rails and carriages share it, so quote it - ideally taken from the original part - when ordering the other half of the guide.
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Covers non-human-caused product damage.
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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.