Airtac LSH Linear Guide Rail LSH30HN1X200S20BH-M6
The AirTAC Airtac LSH Linear Guide Rail LSH30HN1X200S20BH-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.
- SeriesLSH
- Supplied asComplete guide set
- SizeLSH30
- Rail width28 mm
- Carriage lengthStandard carriage
- Carriages1
- Rail length200 mm
- AccuracyH — high grade
- PreloadB — light preload
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac LSH Linear Guide Rail LSH30HN1X200S20BH-M6
Two upgrades in one code: LSH30HN1X200S20BH-M6 is an AirTAC LSH complete set pairing a 200 mm size 30 rail with a single square standard carriage, specified with light preload (B) and high accuracy (H). The rail is genuinely 28 mm wide despite the 30 in the size code - a detail that catches out anyone machining the base plate from the code alone. Ball rows at 45 degree contact angle deliver equal capacity in all four directions and self-alignment over slight base errors, with grease fed through an M6 fitting on the carriage. The standard S20 offset puts the first mounting hole 20 mm from each rail end.
The H grade tightens running parallelism to a 7-28 um band, against 12-37 um for normal grade - the difference shows up straight away on a axis that must repeat position. Light preload adds stiffness under reversing loads and vibration, but it narrows the installation window: allowable height error between rails drops from 170 um to 110 um at 500 mm spacing, and parallelism from 40 um to 30 um. Check your mounting surface against those figures before choosing B over A. Load figures per carriage are unchanged: 37.4 kN dynamic, 55.0 kN static, MR 0.66 / MP 0.67 / My 0.67 kN.m.
Airtac LSH Linear Guide Rail LSH30HN1X200S20BH-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH30HN1X200S20BH-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 | 1 |
| Rail length | 200 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 | H — high grade |
| Preload grade | B — light 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.
Model Code: Airtac LSH Linear Guide Rail LSH30HN1X200S20BH-M6
| 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. |
| 1X200 | 1 carriage on a 200 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| B | B — light preload — higher preload raises rigidity and tightens how flat the mounting surface must be. |
| H | H — high 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. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 200 mm |
| Carriage | Yes, 1 |
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.
Where the Airtac LSH Linear Guide Rail LSH30HN1X200S20BH-M6 Is Used
Laser alignment measurement slide
A slide carrying a laser or autocollimator needs sub-30 um straightness over its stroke. The H accuracy grade and light preload keep the beam path stable while the 28 mm rail keeps the instrument footprint compact.
High-cycle glue dispensing axis
A dispensing head reversing thousands of times per shift benefits from light preload, which removes the free play that causes drool at direction change. At a 300 mm stroke cycling once a second, 100 km of travel passes in about two weeks - plan the 1.7 cm3 top-ups around running hours, not the calendar.
Semiconductor tester probe positioner
Probe and sensor positioners on test equipment need repeatable, backlash-free motion at moderate loads. The 37.4 kN dynamic rating is ample, and preload B keeps the carriage compliant enough for the machined-base tolerances such frames achieve.
Is the Airtac LSH Linear Guide Rail LSH30HN1X200S20BH-M6 the Right Guide?
Choose this grade when position repeatability, not raw capacity, is the constraint - the H-grade 7-28 um parallelism band is what you are paying for alongside the light preload. If you need tighter still, precision grade P (3-21 um band) is available to order in this size. Capacity-wise the standard carriage gives 37.4 kN dynamic and MR 0.66 kN.m; a long carriage raises MR to 0.88 kN.m if the load overhangs, and a second carriage on the same rail resists tipping along the travel. For light duties in a tight envelope, compare AirTAC LRM (ratings not published - we confirm them at RFQ); for short travel needing crossed-roller stiffness, compare LGC. Checklist before you order: confirm this is the form you want (a complete set, rail plus one carriage), size by load AND moment, carriage style and length, count and rail length, accuracy and preload with the mounting trade-off understood, M6 grease fitting, and the pairing code only if you are buying a replacement part rather than this set.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Worst-case moment, not just straight load
- ✓ Travel length and mounting space
- ✓ Accuracy grade and preload
- ✓ Mounting surface ground or finish-milled
- ✓ Pairing code, if replacing a part
Installation & Maintenance Notes
- check Mounting surface must be ground or finish-milled.
- check Torque the rail screws per the recommended figures, in sequence.
- check Keep the mounting corner radius inside the stated R maximum.
- check Do not angle the carriage onto the rail; balls can drop out.
- check Drive the supplied bolt caps into the mounting holes.
- check Re-grease every 100 km of travel or every 3–6 months.
- check Installation by qualified personnel per AirTAC docs.
Airtac LSH Linear Guide Rail LSH30HN1X200S20BH-M6 FAQ
Per standard square carriage: C 37.4 kN dynamic, C0 55.0 kN static, moments MR 0.66 / MP 0.67 / My 0.67 kN.m. High accuracy grade gives a 7-28 um running parallelism band over the rail length range. Rail fixing is M8 screws at 3040 / 2010 / 1470 N.cm for steel / cast iron / aluminium bases. Lubrication: Mobilux EP2 or equivalent, 5.4 cm3 first charge and 1.7 cm3 top-ups, repeated every 100 km of travel or every 3 to 6 months.
Yes, when your base is machined well. Light preload stiffens the carriage against reversing forces and vibration, but it cuts the allowable height error between rails from 170 um to 110 um at 500 mm spacing (proportional at other spacings) and parallelism from 40 um to 30 um. If your mounting surface cannot hold that, the preload simply converts base error into running resistance. Medium preload C is tighter still and exists in this size; heavy preload D does not exist on LSH30 or below.
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