PMMI REVIEW - Key Fasteners

Describe how key ways and key seats are specified

• By asking a non-expert for advice
• By using outdated reference materials
• By guessing randomly without any specifications
• By providing specific dimensions and tolerances in engineering drawings or technical documents.

What is a keyway on a mechanical drive system?

• A keyway is a type of gear used in mechanical systems.
• A keyway is a type of lubricant used in mechanical systems.
• A keyway on a mechanical drive system is a slot in a shaft or hub that allows a key to be inserted.
• A keyway is a type of fastener used in mechanical systems.

What is a key seat on a mechanical drive system?

• A key seat is a type of chair used in mechanical workshops
• A key seat on a mechanical drive system is a slot or groove cut into a shaft or hub to provide a secure connection with a key, preventing relative rotation between the two components.
• A key seat is a term for a special type of screw used in mechanical systems
• A key seat refers to the main control panel in a mechanical drive system

How do you install a square key into a mechanical drive system?

• Use a key that is too small for the keyway
• Hammer the key into place forcefully
• Clean the key and keyway, slide the key in place, ensure a snug fit, and tighten the fasteners.
• Spray paint the key before inserting it

What shape is a woodruff key?

• Semicircular
• Rectangular
• Triangular
• Hexagonal

These keys transmit heavy, unidirectional, reversing, and vibrating torques and work well in applications in which the key must be removed periodically

• Taper and Gib-Head keys

• Hex keys
• Woodruff keys
• Square keys

This key is a parallel key, similar to square and rectangular keys, except both ends are rounded and tolerances on the length are tighter length tolerances.

• Feather key with rounded ends and tighter length tolerances

• Tapered key with rounded ends and tighter length tolerances
• Parallel key with square ends and looser length tolerances
• Woodruff key with rounded ends and tighter length tolerances

Mechanical keys are typically made from what material?

• wood or glass
• rubber or ceramic
• paper or fabric
• plastic or metal

Advantages of shaft keys in a mechanical drive system?

• Limited torque transmission
• Difficult assembly and disassembly
• Expensive connection
• Secure torque transmission, easy assembly and disassembly, cost-effective connection

Why are set screws needed in a shaft key assembly?

• To secure the key in place and prevent it from moving along the shaft.
• To add weight to the assembly
• To increase the speed of the shaft rotation
• To improve the aesthetics of the key assembly