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SKF profile rail carriage LLTHC SU

Slim-line model | short length | 15 - 35 mm


The SKF profile rail carriage LLTHC SU is a slim-line model carriage. The LLTHC SU is manufactured according to DIN 645-1 and therefore interchangeable in terms of construction within all DIN-complaint brands. Because of the X-arrangement the LLTHC SU is more self-aligning than most other profile rail carriages. This also contributes in the amount of friction being created between carriage and rail. The integrated lubricant reservoirs constantly re-lubricate the circulating balls to decrease maintenance. The LLTHC SU has an extra short length which makes it very suitable for some specific applications. However this does decrease its load ratings by a small amount. You can choose from three different preload and accuracy classes. The LLTHC SU is available in sizes between 15 and 35 mm.

If you are unsure which size or implementation is the most appropriate for you, the differences are written below. If you are still in doubt you can always contact us on +31 (0)85 – 0661258.

Preload and accuracy classes

Preload classes

To adjunct a profile rail guide to the specific demands of a given application, it is advisable to choose an appropriate preload. This will positively affect the operating behavior of the entire linear guidance system. Preload increases the stiffness of linear guides and thus reduces the deviation under load. You can choose between three different preload classes:

    • T0 – Zero preload: For extremely smooth-running rail guide systems with low friction and low external influences. This preload class is only available in P5 and P3 accuracy calsses.
    • T1 – Light preload: For precise rail guide systems with low external load and high requirements for overall stiffness

Accuracy classes

The Accuracy class define the maximum permissible tolerance range of rail system in terms of height, width and parallelism. This choice determines the positioning accuracy of the system within the application. There are three different accuracy classes available for each carriage:

      • P5 – standard: ± 100 µm height- and ± 40 µm width tolerance.
      • P3 – medium: ± 40 µm height- and ± 20 µm width tolerance.
      • P1 – heigh: ± 20 µm height- and ± 10 µm width tolerance.
SKF profile rail carriage LLTHC SU

From: €50.19
Available within 72 hours
(This may differ by variant)


CAD LLTHC SU profile rail carriage
ImplementationLength (L1)Width (W1)Height (H)Dynamic load ratingsStatic load ratings
LLTHC SU 15 T- P-47,6 mm34245800 N9000 N
LLTHC SU 20 T-P-54,1 mm44309240 N14400 N
LLTHC SU 25 T- P-63,8 mm483613500 N19600 N
LLTHC SU 30 T- P-78 mm604219200 N26600 N
LLTHC SU 35 T- P-88,4 mm704825500 N34800 N
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    SKF is the worldwide leader in the field of bearing technology. This also includes the profile rails and profile rail carriages that SKF offers. SKF has been on the top of the mountain for years thanks to the exceptional quality of their bearings and profile rail guides. This quality and the maintenance friendly character can be found in the entire range of SKF. With the purchase of a SKF bearing you are sure to have bought top quality.