Machine Design
When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a

Medium bearing
Square bearing
Long bearing
Short bearing

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Machine Design
The ends of the leaves of a semi-elliptical leaf spring are made triangular in order to

Make M/I constant throughout the length of the leaf
Permit each leaf to act as an overhanging beam
Obtain variable moment of inertia (I) in each leaf
Have variable bending moment (M) in each leaf

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