disk friction loss

Disk friction pump

Friction Disk

Friction Wheel

sintered friction disk

disk wheel

Steel Sheet Disk Wheel

friction pressfriction-screw press Friction sawing

friction-ball-friction

Backup and restore of floopy disk and hard disk

A car braking friction plate

a piece of friction

accumulation of friction stir processing

action of lateral friction

Adaptive Friction Compensation

Adaptive Friction Driving

additional friction force

adhesion friction

adhesive friction

adjustable overload friction clutch