# Numerical - Power lost in friction, given radial load, diameter & speed

**Q. A journal of 120 mm diameter rotates in a bearing at a speed of 1000 rpm. What is the power lost during friction if 8 kN radial load acts on the journal and coefficient of friction is 2.525 x 10**^{-3}?*- Published on 19 Oct 15***a.** 0.126 kW

**b.** 0.253 KW

**c.** 2.365 kW

**d.** 7.615 kW

**ANSWER: 0.126 kW **