Free-Lock System Gear for Floor Chair 「KDR」 KOYO

Among our pipe-type angle adjustment gears, the “KDR” series features high load capacity and a free-lock mechanism.

With conventional gears, the headrest had to be raised to the highest position before returning it to the lowest position. However, this model allows smooth angle adjustment after release without lowering it fully, thanks to the free-lock mechanism.

Additionally, with a load capacity of 230 N·m to 330 N·m, it is suitable for high-back chairs and similar applications.


For detailed information on each product, please refer to the visual sheet below.