Airtac LSH Linear Guide Rail LSH30BK-HL-H-B-M6
The AirTAC Airtac LSH Linear Guide Rail LSH30BK-HL-H-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
- AccuracyH — high 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-H-B-M6
The LSH30BK-HL-H-B-M6 is a carriage only - one long square (H) block for AirTAC's LSH30 profile rail, supplied with no rail section whatsoever. Four rows of recirculating balls sit in X-shaped 45 degree arc raceways with two contact points per ball, so the block carries equal load up, down and sideways and absorbs slight mounting-surface error instead of binding. One warning worth reading twice: size 30 runs on a rail 28 mm wide, because the 30 in the code is a series number, not a width.
As the L (long) body, it takes the size 30 long figures: 45.7 kN dynamic (C) and 73.1 kN static (C0) per carriage, with allowable static moments of 0.88, 0.91 and 0.91 kN.m around MR, MP and My. The long body lifts MR roughly 33 percent over the standard block while dynamic rating rises only about 22 percent, so on a cantilevered head the extra length earns its keep. Accuracy grade is H, and the pairing code is B - the rail you fit must be ordered with the same letter.
Airtac LSH Linear Guide Rail LSH30BK-HL-H-B-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH30BK-HL-H-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 | H — high 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-H-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. |
| H | H — high 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-H-B-M6 Is Used
CNC gantry mill spindle head
Replacing the long square carriages that carry an overhung drilling and milling head across a fabricated gantry, where the cantilevered load makes MR, not C, the deciding figure.
Palletiser pusher slide
A single long carriage under the pusher plate of a case-palletising cell absorbs the side thrust of each sweep while keeping the plate square to the layer.
Shop-built router gantry
A small fabricator upgrading a home-built CNC router to size 30 rail buys rails and blocks separately; this long block goes under the gantry's moving throat plate.
Is the Airtac LSH Linear Guide Rail LSH30BK-HL-H-B-M6 the Right Guide?
Size by both load and moment. Down-sizing: if the duty is light and the envelope tight, the LRM roller guide is the smaller alternative, but AirTAC does not publish its load ratings, so we will confirm them against your duty before you order. Up-sizing: when the moment governs, a long carriage like this one, or a move to LSH35 (available to order), lifts moment capacity faster than adding a second standard block. Across: for short travel where crossed-roller rigidity matters more than long recirculating life, LGC is the crossover choice. Final checklist: confirm the form (this is carriage only), size against load AND moment, carriage style and length, block count and rail length, accuracy grade and preload with their installation-tolerance cost, grease fitting, and - because you are buying a part, not a set - the pairing code taken from the existing rail.
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-H-B-M6 FAQ
Dynamic rating C 45.7 kN and static rating C0 73.1 kN per carriage; allowable static moments MR 0.88, MP 0.91 and My 0.91 kN.m; accuracy grade H with a running parallelism band of 7 to 28 um across the rail length range; the mating LSH30 rail bolts down with M8 screws at 3040 N.cm in steel, 2010 N.cm in cast iron or 1470 N.cm in aluminium; grease charge is 7.2 cm3 per long carriage, topped up with 2.2 cm3 every 100 km of travel or every 3 to 6 months, using Mobilux EP2 or an equivalent.
No - this SKU is the carriage alone; the LSH30 rail is a separate purchase. AirTAC marks each rail and carriage with a pairing letter, and this block carries code B, so the rail you fit it to must be an LSH30 rail ordered with the same letter. If you are replacing a worn block, read the letter off the original rail's code before ordering.
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-H-B-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.