Machine Design
Deep groove ball bearings are used for

Heavy thrust load only
Radial load at high speed
Small angular displacement of shafts
Combined thrust and radial loads at high speed

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Machine Design
The face of the tooth is the

Width of the tooth measured along the pitch circle
Surface of the tooth above the pitch surface
Surface of the tooth below the pitch surface
Surface of the top of the tooth

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Machine Design
Spring stiffness is

Its capability of storing energy
Load required to produce unit deflection
Its ability to absorb shocks
Ratio of coil diameter to wire diameter

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