The AirTAC Airtac LSH Linear Guide Rail LSH30BK-F2N-H-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.
The LSH30BK-F2N-H-E-M6 is one bottom-flange (F2) carriage, standard length, H accuracy, delivered without a rail - a service part for machines already running 28 mm LSH30 profile rail. The block leaves the factory filled with Mobilux EP2 and carries an M6 nipple on its side, so topping up in place is possible without removal. Inside, four rows of balls circulate through X-arranged 45 degree raceways, two contact points each, sharing load equally in all four directions and forgiving small surface errors within the size's limits.
Lubrication arithmetic: first charge is 5.4 cm3, top-ups 1.7 cm3, due every 100 km of travel or every 3 to 6 months - and on a fast duty the distance wins. A 300 mm stroke cycling once per second covers 100 km in roughly two weeks of continuous running, so count cycles, not just the calendar. Ratings for the standard-length carriage: 37.4 kN dynamic, 55.0 kN static, moments 0.66 / 0.67 / 0.67 kN.m. The pairing letter is E. One fitting caution: on flange blocks a side nipple can foul adjacent parts, so check clearance before final mounting.
| Model | Airtac LSH Linear Guide Rail LSH30BK-F2N-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 | LSH30 |
| Rail width | 28 mm (the size code is not the rail width above size 20) |
| Carriage style | Flange, bottom mounting |
| Carriage length | Standard carriage |
| Basic dynamic load rating C | 37.4 kN per carriage |
|---|---|
| Basic static load rating C0 | 55.0 kN per carriage |
| Allowable static moment | MR 0.66 / MP 0.67 / My 0.67 kN·m |
| Accuracy grade | H — high 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 stocked 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. |
| 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. |
| 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 carton-forming head cycling several times a second racks up kilometres fast; keeping a spare code E block on hand turns a lubrication-degraded slide into a short stop.
Sorting gates on distribution conveyors slam side to side all shift; a worn carriage shows up as lash at the gate - swap the block, keep the rail.
After re-greasing or machine relocation, remounting the block and its rail with the correct M8 torque on a flat datum face is what preserves the achieved travel accuracy.
Grease suits duties up to 60 m/min where no cooling effect is needed; above that, or in high-temperature surroundings, oil lubrication (30 to 150 cSt) is the route, fed at roughly 0.3 cm3/h for this size. When sizing from scratch, remember LRM is the light-duty, compact option (ratings confirmed on request) and LGC the short-travel crossed-roller choice. Step up to a long LSH30 carriage when MR 0.66 kN.m is marginal - the long block reaches 0.88. Checklist: carriage-only form, size versus load and moment, F2 bottom flange, standard length, H grade, M6 nipple, pairing code E on the rail.
Quick checklist
First charge 5.4 cm3, top-up 1.7 cm3 of Mobilux EP2 or an equivalent, every 100 km of travel or 3 to 6 months, whichever comes first. Pump the grease in, then stroke the block through at least three carriage lengths twice and confirm the film spreads evenly on the rail. For reference: C 37.4 kN, C0 55.0 kN, MR/MP/My 0.66/0.67/0.67 kN.m, H parallelism 7-28 um.
No rail - this SKU is the F2 carriage only and must not be ordered as a complete guide. LSH carriages and rails match by pairing letter; this one is E, so the rail must also be E. If the letter on your old carriage is unreadable, send us the machine details and we will help identify it.
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