
The AirTAC Airtac LSH Linear Guide Rail LSH30BK-F1N-H-C-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.
The LSH30BK-F1N-H-C-M6 is the moving half of an LSH30 guide sold on its own: one standard-length F1 top-flange carriage in grade H, no rail in the box. Four ball rows seated at 45 degree contact angle in opposing arc raceways give the block the same capacity whichever way the load pushes, and the ball recirculation lets it swallow small errors in the mounting face. Rail width for size 30 is 28 mm.
When a load hangs off the side of the carriage, the moment figures rule: 0.66 kN.m MR and 0.67 kN.m MP/My, alongside C 37.4 kN and C0 55.0 kN. Choosing the long F1L block instead lifts MR to 0.88 kN.m, about a third more, while dynamic C climbs only around 22 percent to 45.7 kN - which is why cantilevered tooling is sized on moment, not load. The rail ordered with it must carry pairing code C.
| Model | Airtac LSH Linear Guide Rail LSH30BK-F1N-H-C-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 | Flange, top mounting |
| 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 | 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. |
| N | Standard 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 small drilling spindle overhung from a single size 30 carriage is limited by the 0.66 kN.m MR rating, not the 37.4 kN load capacity - this is the block class where moment figures decide survival.
A fixture builder fits this F1 block under a clamp actuator plate, bolting through the top flange so the slide surface beneath stays clear for the workpiece.
On a secondary packaging line, the pusher that squares cartons against a back fence rides on a replaceable carriage; stocking the block alone keeps the line running while the rail is still sound.
Size on the moment first when the load hangs off the block: 0.66 kN.m MR here, 0.88 kN.m on the long version, and one size up to LSH35 lifts it again - that size is available to order. Then check the rest of the list: carriage-only form, F1 flange, standard length, H accuracy, M6 fitting, pairing code C matched to the rail. Light duties in tight envelopes belong on LRM - we confirm its unpublished ratings case by case. Short-travel stages that need crossed-roller rigidity rather than recirculating travel belong on LGC.
Quick checklist
Moment and load per carriage: MR 0.66 kN.m, MP 0.67, My 0.67, dynamic C 37.4 kN, static C0 55.0 kN - static runs near 1.5x dynamic across the range, so size travel life on C. Grade H parallelism is 7-28 um. Rail screws M8 at 3040/2010/1470 N.cm for steel, cast iron and aluminium. Lubrication: 5.4 cm3 grease charge, 1.7 cm3 top-up, every 100 km or 3-6 months.
One F1 top-flange carriage, standard length, high accuracy, M6 fitting. No rail is supplied, and no preload is set by this code - preload belongs to complete-set ordering. C is the pairing code: it must match the letter on the LSH30 rail, so read it off the old part or the rail paperwork before ordering.
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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.