Airtac LSH Linear Guide Rail LSH30BK-HL-N-B-M6
The AirTAC Airtac LSH Linear Guide Rail LSH30BK-HL-N-B-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 asCarriage / block only
- SizeLSH30
- Rail width28 mm
- Carriage lengthLong carriage
- AccuracyN — normal grade
- 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 LSH30BK-HL-N-B-M6
This listing is a carriage, not a guide assembly: one AirTAC LSH30 long square body at normal accuracy, with an M6 grease fitting and pairing code B. No rail is included, and no preload digit exists in a BK code - preload is specified on complete assemblies, not on this part. Inside, four rows of recirculating balls run in X-shaped 45 degree arc raceways with two contact points per ball, giving equal capacity in all four directions and enough self-alignment to absorb slight mounting error. Despite the 30 in the name, the rail it mates with is 28 mm wide, so check any existing envelope before committing.
Because this is the long body, it outperforms the standard LSH30N block disproportionately in overturning: moment rating MR rises from 0.66 to 0.88 kN.m, about 33 percent, while dynamic rating C rises from 37.4 to 45.7 kN, about 22 percent. If your load overhangs the carriage - an offset head, a cantilevered fixture - the longer footprint is usually the cheaper fix than jumping a size. The block is supplied pre-filled with Mobilux EP2.
Airtac LSH Linear Guide Rail LSH30BK-HL-N-B-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH30BK-HL-N-B-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 | Square (compact) |
| Carriage length | Long carriage |
| 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 |
| 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.
Model Code: Airtac LSH Linear Guide Rail LSH30BK-HL-N-B-M6
| 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. |
| L | Long carriage. |
| N | N — normal 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. |
What Is In The Box
| 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.
Where the Airtac LSH Linear Guide Rail LSH30BK-HL-N-B-M6 Is Used
CNC router gantry repair
If the 28 mm rail on a CNC router gantry still runs smooth and shows no flaking, swapping just this carriage - at roughly a quarter of a complete set's price - restores the axis without replacing the whole guide.
Pick-and-place head service exchange
Keep one as the standing spare for a pick-and-place module: the long body's 0.88 kN.m MR covers the tipping moment of an offset gripper, and a like-for-like code B block drops onto the existing rail during a shift-change stop.
Horizontal feed unit on a carton packer
Cartoning machines push product with an offset tool on a size-30 guide; when the carriage knocks at stroke reversal, replacing the block rather than the rail fixes the knock and keeps the packaging line's maintenance window short.
Is the Airtac LSH Linear Guide Rail LSH30BK-HL-N-B-M6 the Right Guide?
Start from the duty. If the load is light and the envelope tight, LRM may do the job at smaller section - its load ratings are not published, so send us the duty cycle and we confirm them first. If the moment governs and even this long body is marginal, step up to LSH35, which we supply to order, rather than adding lever arm. Where travel is short and the job needs crossed-roller rigidity instead of long recirculating travel, LGC is the better cross-check. Match checklist before ordering: confirm the form is carriage only; size for load and moment together; square or flange body and standard or long; blocks per rail and rail length; accuracy grade and the preload it will join, remembering tighter preload cuts allowable mounting error; grease fitting; and, when replacing a part, the pairing code letter off the original - B here.
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 LSH30BK-HL-N-B-M6 FAQ
Per carriage: dynamic C 45.7 kN, static C0 73.1 kN, moments MR 0.88, MP 0.91, My 0.91 kN.m. Running parallelism for the N grade sits in a 12-37 um band depending on rail length. The rail it sits on takes M8 screws at 3040 N.cm into steel, 2010 into cast iron, 1470 into aluminium. Grease: 7.2 cm3 first charge, 2.2 cm3 top-up per long carriage; re-grease every 100 km of travel or every 3 to 6 months, whichever comes first. A 300 mm stroke cycling once per second covers that 100 km in roughly two weeks of continuous running, so the distance usually binds before the calendar.
No - one carriage only, pairing code B, M6 fitting. The rail, mounting screws and bolt caps are separate line items. The pairing letter is the catalogue's match mark: this block belongs on LSH30 rails that carry the same B, and mixing letters forfeits the intended fit and accuracy. If you cannot read the letter off the old part, send us a photo of the end face and the rail length and we will identify it.
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 LSH30BK-HL-N-B-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.