Airtac LSH Linear Guide Rail LSH30HN1X280S20BN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH30HN1X280S20BN-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 length280 mm
- AccuracyN — normal 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 LSH30HN1X280S20BN-M6
LSH30HN1X280S20BN-M6 is a matched AirTAC LSH assembly: a 280 mm hardened profile rail with one square standard-length carriage riding on it. The rail is 28 mm wide, not 30 - the size code stops matching the width at this grade. Balls recirculate through four rows of 45 degree X-set arc raceways, so the block takes radial, reverse-radial and side loads alike and self-aligns to swallow small errors in the mounting face.
This variant carries preload B (light) with normal accuracy grade N, whose running parallelism spans 12 to 37 um across the rail length bands. The light preload stiffens ball contact for repeatability under load reversals; per carriage the ratings are 37.4 kN dynamic, 55.0 kN static and 0.66/0.67/0.67 kN.m moment. An M6 nipple on the carriage serves the lubrication port, and this size sits in the M6 fitting family the catalogue assigns to sizes 20 through 35.
Airtac LSH Linear Guide Rail LSH30HN1X280S20BN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH30HN1X280S20BN-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 | 280 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 | 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 LSH30HN1X280S20BN-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. |
| 1X280 | 1 carriage on a 280 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. |
| 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. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 280 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 LSH30HN1X280S20BN-M6 Is Used
Indexing welding positioner feed
A weldment shop adding a powered index slide to a rotary welding positioner picks light preload so the torch carrier does not rock as the load swings through each index.
PCB depaneling gantry
An electronics manufacturer driving a routing spindle over PCB panels uses the light preload to limit deflection at the cutter while the N grade keeps the build affordable.
Machine shop rebuild
A maintenance technician converting a manual milling attachment to powered feed fits this complete set as a drop-in axis, knowing one order covers rail and block together.
Is the Airtac LSH Linear Guide Rail LSH30HN1X280S20BN-M6 the Right Guide?
Weigh rigidity against your machining accuracy before choosing this preload grade. Light preload B on size 30 trims the allowable height error at 500 mm spacing from 170 um to 110 um and parallelism from 40 um to 30 um, so the base must be finish-machined to match. If your structure is rougher, the A-grade set tolerates more; if you need maximum stiffness, medium preload C drops the allowances again. Should the duty be lighter and smaller, LRM miniatures come cheaper, though we must check their unpublished ratings for you; for short-stroke work needing roller stiffness, LGC is the alternative. Before ordering confirm: form, size by load and moment, carriage style and length, count, rail length, accuracy, preload, grease fitting - or the pairing code if this is a spare.
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 LSH30HN1X280S20BN-M6 FAQ
Size 30 standard carriage: C 37.4 kN dynamic, C0 55.0 kN static, moment ratings MR 0.66 kN.m and MP, My 0.67 kN.m each. Normal grade parallelism runs 12-37 um over the rail length bands. Fix the rail with M8 bolts at 3040 N.cm on steel, 2010 on cast iron, 1470 on aluminium. Lubrication: 5.4 cm3 first fill per carriage, 1.7 cm3 top-up, repeated every 100 km of travel or every 3 to 6 months, whichever comes first.
Preload B means the balls are pre-tensioned, so the guide is stiffer and steadier under reversing loads - but the mounting surface must be better. At 500 mm rail spacing the size 30 allowable parallelism error falls from 40 um (no preload) to 30 um, and height error from 170 um to 110 um, scaling with your actual spacing. Shoulder radii on the base must stay at or under 1 mm and the M8 bolts must be pulled to full torque, because a rail not seated flat loses most of its rated accuracy.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LSH Linear Guide Rail LSH30HN1X280S20BN-M6
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