Pressure angle 25 degrees. Earlier gears with pressure angle 14.5 were commonly used because the cosine is larger for a smaller angle, providing more power transmission and less pressure on the bearing; however, teeth with smaller pressure angles are weaker. To run gears together properly their pressure angles must be matched. The pressure angle is also the angle of the sides of the trapezoidal teeth on the corresponding rack. The force transmitted during the mating of gear teeth acts along the normal. This force has components along the pitch line and the other along the line perpendicular to the pitch line. The
Wilt: Larger than Life Wilt: Larger than Life Wilt: Larger Than Life () is a biography of deceased NBA basketball Hall-of-Famer Wilt Chamberlain, written by journalist Robert Cherry. The 416-page book was published in November 2004 by Triumph Books. The foreword is written by Jerry West, Chamberlain's teammate and friend on the Los Angeles Lakers. It is the only biography of Wilt Chamberlain to be released after his death. The book chronologically spans the entire life of Wilt Chamberlain, starting with his roots in middle class Philadelphia, highlights his rise to young basketball prodigy in Overbrook high school and at Kansas University, follows his