Airtac LSH Linear Guide Rail LSH20BK-HN-H-E-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20BK-HN-H-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
- AccuracyH — high 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 Rail LSH20BK-HN-H-E-M6
A single AirTAC LSH20 square carriage, standard length, high accuracy grade, M6 grease nipple - and nothing else. The rail is NOT part of this SKU, so it is a part for extending, upgrading or repairing an existing LSH20 guide rather than a new-build axis on its own. Inside, four ball rows meet X-arranged 45 degree arc raceways with two contact points per ball, which gives the same capacity in all four directions and lets the block self-align over small machining errors in the mounting face. The 20 in LSH20 is the true rail width in millimetres.
Ratings per block: 18.6 kN C, 28.6 kN C0, moments 0.27 / 0.25 / 0.25 kN.m. Static sits near 1.5 times dynamic across the LSH range, and the dynamic figure is the one that governs travel life - buyers who size on the larger C0 number usually end up oversizing. H grade keeps running parallelism to 7-28 um over the rail length band. The pairing letter here is E, and it must match the rail the block runs on.
Airtac LSH Linear Guide Rail LSH20BK-HN-H-E-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20BK-HN-H-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 | H — high 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 stocked 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 Rail LSH20BK-HN-H-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. |
| H | H — high 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 Rail LSH20BK-HN-H-E-M6 Is Used
Filling machine lift guide
The lift axis on a rotary filler works in syrup-laden air; when the old block starts to drag, this H-grade carriage replaces it and the 0.27 kN.m MR rating carries the off-centre filling head without tipping.
Web guide on a slitter-rewinder
A film web guide rides one rail and reacts to constant side thrust. The X-raceway geometry gives the same rating sideways as downward, and H grade keeps the guide edge-true across the roll width.
Robot end-effector slide tune-up
Servicing the linear slide on a pick-and-place end effector: fit the new block, then stroke it three full carriage-lengths twice after greasing so the 1.8 cm3 charge spreads evenly, and the travel feel comes back.
Is the Airtac LSH Linear Guide Rail LSH20BK-HN-H-E-M6 the Right Guide?
Match point by point before you buy: form (carriage only, no rail), size 20 against both load and moment, square standard block, one piece, accuracy H, M6 fitting, and pairing code E on both parts. If the load overhangs the block - a swinging arm, an off-centre gripper - moment decides: the long LSH20 carriage raises MR about 30 percent (0.27 to 0.35 kN.m) while C rises only about 19 percent, and one size up to LSH25 N lifts MR to 0.44 kN.m, roughly 63 percent. Where the duty is genuinely light and space scarce, LRM is the smaller family - its ratings are unpublished, so we confirm them by RFQ. Where travel is short and you need crossed-roller stiffness rather than long recirculating travel, LGC is the better read. If anything is unclear, send the datasheet question to us by RFQ.
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 Rail LSH20BK-HN-H-E-M6 FAQ
C 18.6 kN dynamic, C0 28.6 kN static, moments MR 0.27 / MP 0.25 / My 0.25 kN.m per block. Running parallelism at H grade: 7-28 um across the rail length band. Rail screws: M5 at 882 / 588 / 441 N.cm for steel / cast iron / aluminium. Lubrication: 1.8 cm3 first fill, 0.6 cm3 top-up, Mobilux EP2 or equivalent, re-grease every 100 km or 3 to 6 months, whichever comes first.
One LSH20 square carriage, standard length, H accuracy, M6 nipple, pairing code E. There is no rail in the box and no second block. The E letter is the match key: your rail must have been ordered with E as well. If you cannot read the letter off the old part, send us the rail order details or the old carriage and we will identify it through an RFQ.
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 Rail LSH20BK-HN-H-E-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.