
The AirTAC Airtac LSH Linear Guide Rail LSH30HN2X2920S20AN-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 LSH30HN2X2920S20AN-M6 is a complete AirTAC LSH linear guide set: a 2920 mm profile rail of size 30 with two square, standard-length carriages, a 20 mm end-hole offset, normal accuracy and M6 side lubrication. Nothing else is needed to build the axis. Four rows of recirculating balls run in X-shaped arc raceways at a 45 degree contact angle, so the unit carries load, lift and side thrust equally, and slight mounting-surface error is absorbed inside the carriage instead of binding the slide. Note that the size code is not the rail width - the rail measures 28 mm across.
Each carriage is rated 37.4 kN dynamic and 55.0 kN static, with moment limits of 0.66, 0.67 and 0.67 kN.m. Mounted as a pair on the shared rail, two correctly aligned carriages roughly double those figures for an evenly distributed load and, more importantly, resist tipping along the direction of travel. At 2920 mm the rail still sits 1110 mm short of the 4030 mm maximum for this size, so there is room to lengthen the axis later without changing series.
| Model | Airtac LSH Linear Guide Rail LSH30HN2X2920S20AN-M6 |
|---|---|
| Series | LSH Series Linear Guide |
| Supplied as | Complete guide set |
| 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 |
| Carriages supplied | 2 |
| Rail length | 2920 mm |
| 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 |
| Preload grade | A — no preload |
| 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 |
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.
| LSH | LSH Series Linear Guide. |
|---|---|
| 30 | Size code — note the rail is 28 mm wide, not 30 mm. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| N | Standard carriage. |
| 2X2920 | 2 carriages on a 2920 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| A | A — no preload — higher preload raises rigidity and tightens how flat the mounting surface must be. |
| N | N — normal grade. |
| -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 | Complete guide set |
|---|---|
| Rail | Yes, 2920 mm |
| Carriage | Yes, 2 |
Rail and carriage(s) supplied together, matched as a set. 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 2.9 m axis carrying a torch bridge across a cutting bed: two LSH30 carriages share the weight and hold the 28 mm rail against the side thrust of rapid cornering moves.
Over a palletising conveyor, the pick head travels the full bed length on this set; the two-block arrangement resists the tipping moment when the gripper swings an off-centre layer of cartons.
An inspection camera racking along float-glass or solar panels on a long rail; grade N parallelism of 12-37 um keeps the optics plane consistent over the whole stroke.
For this span start from the duty: if the load is light and the envelope tight, step down to LRM - it is smaller, but its load ratings are not published, so confirm them with us before committing. If the moment governs, a long LSH30 carriage lifts MR from 0.66 to 0.88 kN.m, about a third more, for a small premium, and one size up to LSH35 reaches 1.05 kN.m. Where the stroke is short and the job needs crossed-roller rigidity rather than long recirculating travel, look across at LGC. Match checklist: confirm the form (this is a complete set), size by load AND moment, carriage style and length, carriage count and rail length, accuracy grade N with preload A and the generous installation latitude that buys, grease fitting M6, and the pairing code only if you are ordering a spare part.
Quick checklist
Each standard carriage is rated 37.4 kN basic dynamic (C) and 55.0 kN basic static (C0), with allowable static moments of 0.66 kN.m (MR), 0.67 kN.m (MP) and 0.67 kN.m (My). Grade N running parallelism spans 12-37 um depending on rail length. Mount with M8 screws at 3040 N.cm in steel, 2010 N.cm in cast iron or 1470 N.cm in aluminium. Lubricate with 5.4 cm3 of Mobilux EP2 or equivalent per carriage at first charge and 1.7 cm3 at top-ups, repeating every 100 km of travel or every 3 to 6 months.
Preload A leaves the widest installation window: at 500 mm rail spacing this size 30 guide tolerates 40 um of parallelism error and 170 um of height difference between rails, scaled to your actual span. Moving to preload C for extra rigidity cuts those to 27 um and 90 um - nearly half the latitude - so the machining and shimming of the seat must improve in step with the stiffness you gain.
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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.