Abstract: Apparatus for producing a biaxial state of tension in a flat body in the form of a thin test specimen made of an elastic material comprising a plurality of clamping members adapted to be detachably secured to the periphery of the test body, a drawplate (15), elements connecting the clamping members to the drawplate including force transmitters in the form of cables, each cable connected at one end to a clamping member and at its opposite end by adjustable and removable elements to the drawplate, rerouting wheels (10) directing the cables (9) from the drawplate to the clamps to thereby distribute a uniaxial force on the drawplate uniformly to the clamping members via the rerouting wheels.

Abstract: A seal for a rolling bearing unit having an inner and an outer race becoming or forming a unit with an attaching flange and rows of rolling members between the races. The seal comprises an annular element, which at its inner edge, near the raceway of a row of rolling members, may be attached on the inner race and the outer edge of which, at the same time, rests sealingly against the annular main surface of the outer race.