根据本发明，用于将螺纹（40）供给到水平机的螺纹输送装置（1）设置有存储体（3），螺纹（40）从该存储体抽出，并且还设置有 制动装置调节螺纹的线张力（40）。 制动装置以螺纹路线布置在存储体（3）后面。 制动装置设置有用于制动器主体（8）的制动器体（8）和调节装置，并且调节装置可以被压在储存体的拉出端的夹紧表面（10）上 （3）。 调节装置设置有位于元件壳体（16）中的PM元件（11）和可在PM元件（11）的磁场中移动的工作线圈（12），并被配置为作用于 制动器体（8）。 该调节装置还设置有用于螺纹（40）的拉出管（15），拉出管通过工作线圈（12）延伸，并且还设置有轴向弹性定心单元，该轴向弹性定心单元布置在 工作线圈（12）的区域，面对制动器主体（8）的端部的区域。 定心单元构造成使工作线圈（12）居中。 调节装置设置有布置在制动器主体（8）和定心单元之间的密封单元。

An inventive yarn feeding device (1) for supplying a thread (40) to a textile machine is provided with a storage body (3) is withdrawn from the thread (40) through the textile machine, and with a braking device for adjusting a thread tension of the thread (40) disposed in the yarn course downstream of the storage body (3), is provided. The braking device comprises a braking body (8) and an adjusting device for the brake body (8) which can be pressed against a clamping surface (10) at the withdrawal end of the storage body (3). The adjustment device is in an element housing (16) and movable with the magnetic field of the PM-element (11) working coil (12) disposed possible to act on the brake body (8), provided with a PM-element (11). The adjustment device is provided with a discharge pipe (15) for the thread (40), which extends through the working coil (12), and with an axially resilient centering. The centering unit is arranged in the region of the braking body (8) facing the end of the work coil (12). The centering unit is designed for centering the work coil (12). The adjustment device comprises a sealing unit disposed between the brake body (8) and of the centering unit.