The Locking Device (FITTINGS Super Locks) Is a kind of keyless coupling. Under the action of axial force of screws via an inclined plane, inner and outer rings keep close to axis/hub and generate friction force to create no backlash connection, thus transmit torque then attain the goal of running machines steadily and safely.

FT-DC series:

• Two outer rings & one inner ring design;

• Medium high torque;

• Self-centering;

• Self-locking;

• No axial movement during clamping;

• Tolerances: shaft h8; hub bore H8;
• Surface roughness: Ra max.12.5.