Airtac LSH Linear Guide Block LSH30BK-HL-P-B-M6
The AirTAC LSH Linear Guide Block LSH30BK-HL-P-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
- AccuracyP — precision 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 Block LSH30BK-HL-P-B-M6
This is the LSH30BK-HL-P-B-M6: a single long square carriage for the AirTAC LSH30 profile-guide family, built to precision (P) accuracy, fitted with an M6 grease nipple and carrying the B pairing code. It is a carriage only - no rail is included in the box. Four rows of recirculating balls run in X-shaped arc raceways set at 45 degrees, so the block carries load equally in all four directions and absorbs slight mounting-surface error instead of binding. Note that the LSH30 size code corresponds to a true rail width of 28 mm, not 30.
As a long (L) block it lifts the moment ratings well ahead of the standard LSH30 carriage: dynamic C 45.7 kN and static C0 73.1 kN per carriage, with MR 0.88, MP 0.91 and My 0.91 kN.m - roughly a third more roll-moment capacity for one part. Where the rail still tests straight and its raceways are clean, buying the block alone is typically the economical repair path.
Airtac LSH Linear Guide Block LSH30BK-HL-P-B-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Block LSH30BK-HL-P-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 | P — precision 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 listed 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 Block LSH30BK-HL-P-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. |
| P | P — precision 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 Block LSH30BK-HL-P-B-M6 Is Used
Granite CMM axis rebuild
A metrology lab replacing a scored carriage on the X axis of a granite-base coordinate measuring machine; the P grade on a 28 mm LSH30 rail keeps the probe travelling true.
Woodshop router retrofit
A joinery shop fitting fresh long carriages to a CNC router gantry whose originals are worn; buying blocks only keeps the repair cheap while the rails still check straight.
Palletiser lift service
A warehouse maintenance team swapping the carriage on a case palletiser lift column; the long block's 0.88 kN.m MR absorbs the offset load of the gripper head.
Is the Airtac LSH Linear Guide Block LSH30BK-HL-P-B-M6 the Right Guide?
Decide form first. This listing is a carriage only, so it suits a rail that is still straight and undamaged. If the duty is light and the envelope small, step down to the AirTAC LRM series - its load ratings are not published, so we confirm suitability for your case by RFQ. If moment governs, this long block (or one size up to LSH35, listed to order) will usually beat stacking more carriages. Where travel is short and the job needs crossed-roller rigidity rather than long recirculating travel, step across to LGC.
Before ordering, tick the checklist: form (carriage, no rail), size by load and by moment, carriage style and length (square, long), the count you need, accuracy grade P, grease fitting M6 - and above all the pairing code. Your rail must carry the same B code; read it from the original part's ordering code, not from the size alone.
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 Block LSH30BK-HL-P-B-M6 FAQ
Per carriage: dynamic load rating C 45.7 kN, static C0 73.1 kN, allowable moments MR 0.88, MP 0.91 and My 0.91 kN.m. Precision grade running parallelism sits in a 3 to 21 um band. Rail screws are M8, torqued to 3040 N.cm into steel, 2010 into cast iron, 1470 into aluminium. Grease: 7.2 cm3 first charge, 2.2 cm3 top-up, renewed every 100 km of travel or every 3 to 6 months.
No - you receive one long square carriage, nothing else. Carriage-only and rail-only LSH parts are matched by a pairing code letter: this block is B-coded and will only pair with an LSH30 rail ordered with the same letter. Take the code from your original assembly's ordering code. If the rail shows scoring or step wear, a complete set is usually the better buy than a new block on a tired rail.
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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 Block LSH30BK-HL-P-B-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.