Airtac LSH Linear Guide Block LSH20BK-HN-P-E-M6
The AirTAC LSH Linear Guide Block LSH20BK-HN-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 lengthStandard 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-HN-P-E-M6
One block, nothing else: this AirTAC LSH20 code delivers a precision-grade square carriage of standard length and no rail whatsoever. Its four rows of balls circulate through 45 degree X-shaped arc raceways with two-point contact per ball, which yields the same load capacity in all four directions and lets the carriage swallow small datum-face errors within the limits allowed for size 20. The rail it is meant for is 20 mm wide.
The economic case is the headline: a carriage on its own lists at roughly a quarter of the price of a complete LSH20 set, so when the existing rail is undamaged, swapping the block - not the whole guide - is the repair that makes sense. Per block: C 18.6 kN dynamic, C0 28.6 kN static, moments MR 0.27 / MP 0.25 / My 0.25 kN.m, with precision-grade parallelism held to 3-21 um.
Airtac LSH Linear Guide Block LSH20BK-HN-P-E-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Block LSH20BK-HN-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 | Standard carriage |
| Basic dynamic load rating C | 18.6 kN per carriage |
|---|---|
| Basic static load rating C0 | 28.6 kN per carriage |
| Allowable static moment | MR 0.27 / MP 0.25 / My 0.25 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-HN-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. |
| N | Standard 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-HN-P-E-M6 Is Used
Bottling line pusher slide
The indexing pusher that nudges bottles between conveyor lanes runs on short strokes; replacing its worn block with this precision-grade carriage restores smooth positioning without a full rail change.
Gantry pick-and-place head
A gantry robot's Z-axis block takes a shock at every pick; fitting this spare square block onto the E-coded rail keeps the vacuum head square to the part.
Electronics test fixture retrofit
A probe fixture that indexes circuit boards under test gains repeatable placement from this precision-grade block, which swaps straight onto the existing E-coded LSH20 rail.
Is the Airtac LSH Linear Guide Block LSH20BK-HN-P-E-M6 the Right Guide?
Before ordering, count the pairing code - E here - off the original block or the rail end; carriage and rail must share it. Confirm the rail runs smoothly along its full length and shows no flaking; if the rail is worn, a complete set is the better buy. For moment-driven duties, remember the numbers: a long LSH20L block raises MR to 0.35 kN.m from 0.27, roughly 30 percent, and LSH25N reaches 0.44 kN.m in one step. Light duty in a tight envelope points to LRM - its load ratings are not published, so we confirm them by enquiry - while short-travel work that wants crossed-roller stiffness rather than recirculating travel points to LGC.
Checklist for this code: carriage only, size 20, square, standard length, precision accuracy, M6 side fitting from the M6 family that covers sizes 20 to 35, pairing code 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-HN-P-E-M6 FAQ
One standard-length LSH20 carriage is rated C 18.6 kN dynamic and C0 28.6 kN static, with allowable static moments of MR 0.27, MP 0.25 and My 0.25 kN.m. In precision grade its running parallelism falls in a 3-21 um band. The matching rail bolts down with M5 screws at 882 / 588 / 441 N.cm on steel / cast iron / aluminium. Lubrication is 1.8 cm3 on first charge and 0.6 cm3 per top-up, repeated at 100 km of travel or every 3-6 months, whichever comes first.
Exactly one carriage arrives - no rail and no preload to set. Match it by the pairing code: the E on this block must equal the code on your LSH20 rail, which is marked at the rail end or on the block label. If the code is unreadable, send the old block's marking or a photo with your enquiry and we will identify the match before you commit.
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-HN-P-E-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.