
The AirTAC Airtac LSH Linear Guide Rail LSH30HL2X1000S20AN-AM8 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.
LSH30HL2X1000S20AN-AM8 is a complete AirTAC LSH linear guide: one 1000 mm profile rail with two long square carriages factory-matched to it, so nothing else is needed to build a working axis. Four rows of recirculating balls run in X-arranged 45 degree arc raceways with two contact points per ball, which gives equal capacity up, down and sideways and lets the carriage absorb slight mounting-surface error instead of binding. Size 30 is a code, not a width - the rail measures 28 mm across, so lay out the shoulders to 28 mm.
Each long carriage is rated 45.7 kN dynamic and 73.1 kN static, with moments of 0.88 kN.m MR and 0.91 kN.m MP and My. The long body lifts the moment rating about 33 percent over the standard LSH30 carriage (0.66 kN.m) while dynamic load rises only about 22 percent, so for cantilevered tooling the extra length does more work than an extra size would. Two carriages per rail resist tipping along the travel at two separated points, and no preload (code A) keeps the widest installation latitude.
| Model | Airtac LSH Linear Guide Rail LSH30HL2X1000S20AN-AM8 |
|---|---|
| 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 | Long carriage |
| Carriages supplied | 2 |
| Rail length | 1000 mm |
| 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 |
| 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. |
| L | Long carriage. |
| 2X1000 | 2 carriages on a 1000 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, 1000 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.
Retrofitting the X-axis of a bed mill or small machining centre: two long carriages give the slide 45.7 kN dynamic and 0.88 kN.m moment per carriage, enough headroom for heavy cuts with cantilevered tooling.
The beam of a CNC plasma cutting gantry sees reaction loads from every direction as the torch tracks the plate; the four-row 45 degree geometry answers them all with equal capacity.
A measuring bridge travelling over a granite surface plate needs repeatable, low-play motion; the N accuracy grade with 12-37 um running parallelism suits general gauging work.
Size by moment before dynamic load. The long LSH30 carriage carries 45.7 kN dynamic but only 0.88 kN.m MR; if your cantilever load exceeds the moment figure at its working arm, take the long carriage or step the series up rather than adding only dynamic capacity. For a light duty in a tight envelope, step down to LRM - its load ratings are not published in our data, so we confirm them against your duty before you order. Where travel is short and crossed-roller stiffness matters more than long recirculating motion, LGC is the better family.
Checklist for this code: complete set with two long square carriages on a 1000 mm rail, accuracy N with no preload for the loosest mounting tolerance, AM8 tube fitting. Before final mounting, check that nothing above the carriage fouls the fitting, which may sit flush with or proud of the top face. If you are replacing a single worn part rather than building an axis, we also list carriage-only and rail-only LSH30 codes linked by a pairing letter.
Quick checklist
Per long carriage: dynamic C 45.7 kN, static C0 73.1 kN, moments MR 0.88, MP 0.91 and My 0.91 kN.m. Accuracy N running parallelism spans 12-37 um across the rail length band. Mount with M8 screws torqued to 3040 N.cm in steel, 2010 in cast iron, 1470 in aluminium, with corner radius at the shoulders max 1 mm. Each carriage ships pre-filled with 7.2 cm3 of Mobilux EP2; re-grease with 2.2 cm3 every 100 km of travel or every 3 to 6 months, whichever comes first.
At 500 mm rail spacing this size allows parallelism error P of 40 um and height error S of 170 um with no preload (code A), proportional to your actual spacing. Light preload B tightens this to 30 / 110 um and medium C to 27 / 90 um, so rigidity is bought at the cost of a more accurate mounting surface - the self-aligning design absorbs only error inside these values, not unlimited error. How flat the rail is pulled against the datum face and how evenly the M8 screws are torqued decide the accuracy you actually achieve.
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.