Machine Design
Tapered roller bearings can take

Both radial and axial loads and the ratio of these being less than unity
Both radial and axial loads and the ratio of these being greater than unity
Axial load only
Radial load only

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Machine Design
Spring stiffness is

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

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