## Determine the angular velocity (magnitude and direction) of link OCat the instant shown.

Link AB (2) of the mechanism shown in Figure Q1 has a constant angular velocity of co2= 2.5 rad/s. It has a pin at B which is confined to move within the slot of link OC (3).
Given: AB = 250 mm, OB = 780 mm, angle OBA = 30°
(a) Determine the angular velocity (magnitude and direction) of link OCat the instant shown. Use the method of instant centres. A graphical solution is acceptable (i.e., locate necessary instant centres to answer this question on Figure Q1). (b) Use relative velocity analysis to verify your answer (an) in (i) and to find the velocity of pin B relative to link OC. (c) Determine the angular acceleration (magnitude and direction) of link OC.

### design suitable bearings to support the load for at least 5E8 cycles at 1 200 rpm using deepgroove ball bearings.

The shaft shown in Figure P11-4 was designed in Problem 10-19. For the data in row (a) of Table P11-1, and the corresponding diameter of shaft found in Problem 10-19,….

### Find the minimum film thickness for a long bearing with the following data: 30-mm dia, 130 mm long, 0.0015 clearance ratio, 1 500 rpm, ISO VG 100 oil at 200°F, and supporting a load of 7 kN.

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1.       Problem 7-12 estimated the volume of adhesive wear to expect from a steel shaft of 40 mm dia rotating at 250 rpm for 10 years in a plain bronze….