
The AirTAC LSH Linear Guide Block LSH30BK-F1L-P-E-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.
This listing is the AirTAC LSH30BK-F1L-P-E: one precision-grade, long-body top-flange carriage, and nothing else. It is the repair path for an LSH30 guide whose 28 mm rail is still sound but whose block has gone worn, noisy or slack. The four-row ball set, laid out in 45 degree X raceways with two contact points per ball, is what lets any LSH30 carriage run on any LSH30 rail of the same model and hold its smoothness - the E pairing code simply pairs this block with the right rail.
The long body carries 45.7 kN dynamic, 73.1 kN static and 0.88 / 0.91 / 0.91 kN.m of MR, MP and My. Against a complete LSH30 set, a carriage on its own typically costs around a quarter of the price, so a block swap is usually the economical fix - provided the rail is clean, unbattered and pulled flat against its datum, since how well the rail is torqued down is a large part of achieved accuracy. P accuracy keeps running parallelism inside the 3-21 um band of the grade.
| Model | Airtac LSH Linear Guide Block LSH30BK-F1L-P-E-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, top 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.
| 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. |
| 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.
A CNC foam cutter's Y-axis block developed a rumble after years near cutting dust; the technician ordered this E-coded long carriage, cleaned the sound rail and swapped the block in an afternoon.
On a display-panel transfer line, a worn carriage was replaced without disturbing the aligned rail, protecting the calibrated datum and avoiding a full re-alignment of the 28 mm rail run.
A tube-straightening machine's feed table runs two carriages per rail; holding this E-coded spare on the shelf lets one axis keep working while its partner block is exchanged in a planned stop.
If the machine never really loaded the guide, step down to LRM - we will confirm its unpublished ratings for you - and if the axis travels only a short distance but needs crossed-roller stiffness, LGC fits better. For sustained travel under load with an overhung tool, this long LSH30 block is the match.
Work the checklist: form (carriage only), size by load and moment, F1 flange style, long length, block count and rail length on the machine, accuracy P, preload to be set against the rail at assembly, M6 fitting from the size-30 M6 family, and the pairing code E, which must agree with the rail. Verify the letter on the old part before ordering, since a mismatched code means a carriage that will not seat on your runway.
Quick checklist
Per long 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. Running parallelism for P accuracy spans 3-21 um across the rail length bands. Mounting screws for the size-30 rail are M8 at 3040 / 2010 / 1470 N.cm on steel, cast iron and aluminium. Grease: 7.2 cm3 first charge, 2.2 cm3 top-up, every 100 km of travel or 3 to 6 months, Mobilux EP2 or equivalent.
You get the carriage only - no rail, no screws, no caps. Any LSH30 carriage of this model runs on any LSH30 rail of the same model, but the pairing code must agree: this block is an E, so the rail must be an E too. Read the code off the original carriage or the machine documentation; if it cannot be found, send us the machine details and we will help identify it before you order.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.