When it comes to bearings, what really bugs the engineers who design with them? Its service life, says 25% of the respondents in a Design News study of power transmission component users. Other top complaints: Lubricant (20%); Load capacity (18%); Cage (11%); Noise (10%); and Speed restrictions (8%). Now for the good news: 30% of engineers expect to buy more bearings in 2003 versus 2002. How much? The bearing market is projected to grow at over 4% annually by 2005, reports the market research company Frost & Sullivan.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
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