Machine Design
Tapered roller bearings can take

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

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Machine Design
Cap screws are

Used to prevent relative motion between parts
Provided with detachable caps
Slotted for a screw driver and generally used with a nut
Similar to small size tap bolts except that a greater variety of shapes of heads are available

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