Housing (Wankel)

Also known as:

•  

Description:
The housing of a Wankel Rotary engine is in an epitrochoid shape. The rotor rotates in an orbital movement inside of the housing. Multiple coolant passages surround the housing to help cool combustion areas.

The 4 stroke cycle in a Wankel Rotary engine

Good condition housing of a Wankel engine. Small amount of build up in coolant passages
Mazda Rx-7 12A Wankel engine

Rotor (Wankel)

Also known as:

• Rotary
• Wankel

Description:
A rotor in a Wankel rotary engine is the equivalent of a piston in a conventional internal combustion engine. It is in the shape of a Reuleaux triangle and designed to spin in side of a epitrochoid-shaped housing.  Each side of the rotor will go through the 4 stroke cycle. 

The 4 stroke cycle in a Wankel Rotary engine

Face of rotor. Apex seals, oil control seals, and 1/3 corner seals missing.
Mazda Rx-7 12A Wankel Engine

Face and combustion chamber of rotor
Mazda Rx-7 12A Wankel Engine

Side of rotor - Combustions chamber
Mazda Rx-7 12A Wankel Engine

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Brake Pads

Also known as:

•  Pads

Description:
Brake pads are a component of disk brakes used in automotive and other applications. Brake pads are steel backing plates with friction material bound to the surface that faces the disk brake rotor.

Normal wear on brake pad after 3000km of use. Brand unknown

Friction material completely worn away by contact with rotor. Only backing plate remains causing damage to rotor. Brand unknown.

 

Brake Rotor

Also known as:

• Disc Brake 
• Brake Disc 
• Rotor

Description:

A rotor is a wheel brake which slows rotation of the wheel by the friction caused by pushing brake pads against a brake disc with a set of calipers. The brake disc (or rotor in American English) is usually made of cast iron, but may in some cases be made of composites such as reinforced carbon–carbon or ceramic matrix composites. This is connected to the wheel and/or the axle. To stop the wheel, friction material in the form of brake pads, mounted on a device called a brake caliper, is forced mechanically, hydraulically, pneumatically or electromagnetically against both sides of the disc.

Normal wear on brake rotors after 3000km of use.  

Premium ONE ATE Brake Rotor – Front taken from 2001 Grand AM

Close up view - Normal wear on brake rotors after 3000km of use. 

Premium ONE ATE Brake Rotor – Front taken from 2001 Grand AM

Damage to brake rotor from installation with old brake pad. Friction material on brake pad had worn away leaving backing plate to contact with rotor.
Premium ONE ATE Brake Rotor – Front taken from 2001 Grand AM

Close up view - Damage to brake rotor from installation with old brake pad. Friction material on brake pad had worn away leaving backing plate to contact with rotor.
Premium ONE ATE Brake Rotor – Front taken from 2001 Grand AM