Bearings manufacturer NN Inc. (NASDAQ: NNBR), Johnson City, TN, reported 2015 sales of $667.3 million, a 36.6 percent increase over the same period a year ago. The company reported a loss of $9.6 million, compared to a profit of $8.2 million the prior year. For the fourth quarter, sales were $183.9 million, a year-over-year increase of 19.6 percent. Acquisitions added $42.2 million in sales. The company reported a loss of $27.2 million, compared to a profit of $1.6 million the prior year period.