Airtac LSH Linear Guide Block LSH20BK-HL-P-E-M6
The AirTAC LSH Linear Guide Block LSH20BK-HL-P-E-M6 is a standard-type profile linear guide on a 20 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
- SizeLSH20
- Rail width20 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 LSH20BK-HL-P-E-M6
Order LSH20BK-HL-P-E-M6 when the rail is sound but the block is worn: this SKU is the long square carriage in precision grade, pairing code E, with an M6 side fitting. A rail is not part of the delivery. Inside, four ball rows meet the raceways at 45 degrees from opposite directions, giving the same capacity upward, downward and sideways plus built-in self-alignment for small datum errors. The matching LSH20 rail is 20 mm wide.
The long block is rated 22.2 kN dynamic and 37.6 kN static per carriage - static sits roughly 1.7 times dynamic here, which is the shock-stop and debris margin you keep in reserve, not the figure that sets travel life. Precision grade holds running parallelism within a 3-21 um band. Replacing the block costs about a quarter of a complete set, so the pairing letter E off the old carriage or rail is the one detail that must be right.
Airtac LSH Linear Guide Block LSH20BK-HL-P-E-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Block LSH20BK-HL-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 | LSH20 |
| Rail width | 20 mm |
| Carriage style | Square (compact) |
| Carriage length | Long carriage |
| Basic dynamic load rating C | 22.2 kN per carriage |
|---|---|
| Basic static load rating C0 | 37.6 kN per carriage |
| Allowable static moment | MR 0.35 / MP 0.34 / My 0.34 kN·m |
| Accuracy grade | P — precision grade |
| Mounting screws | M5 — 882 N·cm into steel, 588 cast iron, 441 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 LSH20BK-HL-P-E-M6
| LSH | LSH Series Linear Guide. |
|---|---|
| 20 | Size code. |
| 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 LSH20BK-HL-P-E-M6 Is Used
CO2 laser bridge retrofit
On a laser cutter gantry upgrade, this long precision carriage bolts to an existing E-paired rail; no rail is supplied, so the beam alignment you have already tuned stays untouched.
Microplate handler deck
Lab automation picking 96-well plates all shift runs smoother on a long carriage, whose wider ball spacing damps settle time at each station.
End-of-arm tool slide
A palletiser's EOAT slide sees shock at each placement; the 37.6 kN static rating is the reserve that absorbs those stops between rated cycles.
Is the Airtac LSH Linear Guide Block LSH20BK-HL-P-E-M6 the Right Guide?
A worn block is usually an economic repair: a carriage costs roughly a quarter of a complete set, so inspect the rail first - if the raceways are sound and the pairing code E is known, this long precision carriage drops straight on. Confirm the size against moment, not just C: 0.35 kN.m MR here, while LSH25 N offers 0.44 kN.m (mind the 23 mm true rail width) if the overhang grew. Light, tight duty may suit LRM instead, though its load ratings are unpublished and we confirm them per application; short-stroke work wanting crossed-roller stiffness points to LGC. Final check: form (carriage only), load and moment, square long block, precision grade, M6 fitting, pairing E.
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 LSH20BK-HL-P-E-M6 FAQ
Ratings per carriage: C 22.2 kN dynamic, C0 37.6 kN static, moments 0.35 MR / 0.34 MP / 0.34 My kN.m. Precision-grade running parallelism: 3-21 um depending on rail length. Mount the rail with M5 screws at 882 / 588 / 441 N.cm (steel / cast iron / aluminium). Grease: 2.7 cm3 first charge for the long block, 0.9 cm3 top-up, at 100 km of travel or every 3 to 6 months.
Only if that rail carries pairing code E. The box contains one long square carriage, precision grade, M6 fitting - no rail. Carriages and rails must share the pairing letter, so read it off the old carriage or the rail's label before ordering. LSH carriages are interchangeable across LSH rails of the same model, keeping their smoothness, preload and accuracy - an LSH-only guarantee, not a cross-brand one.
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 LSH20BK-HL-P-E-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.