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Define Moment of Inertia
We can define the moment of inertia of a body about the given axis of rotation is the sum of the products of the masses of all the constituent particles and the square of the perpendicular distances of these particles from the axis of rotation. The moment of inertia of a body about the particular axis of rotation depends on the following factors:
(i) The moment of inertia depends on the position of the axis of rotation.
(ii) The moment of inertia depends on the orientation of the axis of rotation.
(iii) The moment of inertia depends on the shape of the body.
(iv) The moment of inertia depends on the size of the body.
(v) The moment of inertia depends on the distribution of mass of the body about the axis of rotation.
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In this week’s episode, Rein Automotive Brand Manager Paul Swyter talks a little bit about the benefits and pitfalls of the one-time use aluminum stretch bolts BMW uses to attach components to their newer aluminum/magnesium blocks. SEE BELOW for part #s.
Rein Automotive offers the replacement aluminum stretch bolts for the following BMW makes and models:
HWK0001 (BMW – 1 Series 2008-13, 3 Series 2007-13, 5 Series 2008-13, Z4 2009-13)
HWK0002 (BMW – 1 Series 2008-13, 3 Series 2006-13, 5 Series 2006-11, X3 2007-12, X5 2007-10, Z4 2006-11)
HWK0003 (BMW 1 Series 2008-13, 3 Series 2006-13, 4 Series 2014, 5 Series 2006-11, 7 Series 2011-14, M235I 2014, X6 2008-13, X5 2007-14, Z4 2006-14)
HWK0004 (BMW 1 Series 2008-13, 3 Series 2006-13, 5 Series 2006-11, X5 2007-10, X3 2007-12, Z4 2006-11)
HWK0005 (BMW 1 Series 2008-13, 3 Series 2006-13, 5 Series 2006-11, X3 2007-12, X5 2007-10, X6 2008-10, Z4 2006-11)
HWK0006 (BMW 1 Series 2008-13, 3 Series 2006-13, Z4 2006-11)
HWK0007 (BMW 1 Series 2008-13, 3 Series 2006-13, 5 Series 2006-10, X3 2007-10, X5 2007-10)