Airtac LSH Linear Guide Block LSH30BK-F2L-P-D-M6
The AirTAC LSH Linear Guide Block LSH30BK-F2L-P-D-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-F2L-P-D-M6
Replacing a worn block on a sound LSH30 rail is usually the economical repair, and a carriage on its own costs roughly a quarter of a complete set - which is what this SKU is: the long F2 bottom-flange carriage only, with NO RAIL INCLUDED. The F2 flange bolts up from beneath the mounting plate, keeping the carriage top face clear for the load. Inside, four ball rows recirculate through X-shaped 45 degree arc raceways with two contact points per ball, sharing load in all four directions and absorbing slight misalignment of the mounting surface. Remember the size code: LSH30 rides a rail 28 mm wide.
Figures for this long body: 45.7 kN basic dynamic (C), 73.1 kN basic static (C0) and moment limits of MR 0.88, MP 0.91 and My 0.91 kN.m per block. Accuracy is precision grade P, band 3 to 21 um. Before ordering, read the pairing code off the block or rail you are replacing - this one is letter D, and the code must match.
Airtac LSH Linear Guide Block LSH30BK-F2L-P-D-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Block LSH30BK-F2L-P-D-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 | Flange, bottom mounting |
| 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-F2L-P-D-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-F2L-P-D-M6 Is Used
CNC router gantry service swap
When a router gantry starts to notch or knock, swapping in this coded-D block on the existing 28 mm rail restores the axis in an afternoon.
Transfer line downtime recovery
Keeping a coded replacement block matched to each rail on a pallet transfer line turns a bearing failure into a short swap instead of a full guide rebuild.
Spares cover for a critical axis
Holding one matched carriage per rail on a bottleneck machine protects production; the pairing code on the original block tells you which spare to buy.
Is the Airtac LSH Linear Guide Block LSH30BK-F2L-P-D-M6 the Right Guide?
Decide by what actually failed. If the rail still runs smooth and true, this carriage-only route is the cheap fix; if the rail shows brinelling, scoring or visible wear, replace the whole set instead. For light, slow duty in tight space, LRM is the smaller series - we confirm its unpublished load ratings case by case. For short travel needing crossed-roller stiffness, look at LGC. Where the moment budget is the constraint, a size step to LSH35 (order item) buys more roll capacity than adding a second block at the same size.
Order-check: form (carriage only, rail ordered separately), size 30 checked against both load and moment, F2 style and long length, block count and rail length, accuracy grade and the preload grade on the matching set code, grease fitting, and above all the pairing code - this block is letter D and pairs only with a rail carrying D.
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-F2L-P-D-M6 FAQ
For the long LSH30 carriage: basic dynamic C 45.7 kN, basic static C0 73.1 kN, static moment limits MR 0.88, MP 0.91 and My 0.91 kN.m. Precision grade P means 3 to 21 um running parallelism depending on rail length. The rail it pairs with takes M8 screws at 3040 / 2010 / 1470 N.cm in steel / cast iron / aluminium. Grease: Mobilux EP2 pre-filled, 7.2 cm3 first charge, 2.2 cm3 top-up, repeated every 100 km or every 3 to 6 months.
No - carriage only, rail NOT included. The letter in this SKU is the pairing code: LSH carriages and rails must carry the same letter to work together, and this one is D. Read the code off your old block or rail; if the marking is gone, send us what you can read and we will help match 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 Block LSH30BK-F2L-P-D-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.