And third was the lack of durability resulting from the high friction needed to maintain an effective seal.

The concept assumes the contact area is planar and has sufficiently high friction to keep the feet from sliding.

This can be done by either using a material that provides a high friction, such as rubber, or by adding texture to the grips.

This creates high friction and very hot swarf.

A surface with a large value, or a positive , will usually have high friction and wear quickly.

In other application such as actuators, an Acme thread is used, although it has higher friction.

This style generally uses internal gears systems with very high friction.

Things with high friction have many points of contact or have atoms that strongly attract others.

Storm drains may be installed at regular intervals and modern paving materials are designed to provide high friction in most conditions.

Because trains generally have extremely high mass and relatively low braking friction, they are inherently difficult to stop at normal speeds.