Misumi USA Engineering Blog

A new product addition in our 2009 metric catalog for Assembly Automation are Posts with scale.  The main feature of Posts with scale is the ease of adjustment and quick repositioning for changeover.

These Posts are made of 304 Stainless Steel with laser marked scales. The post diameter can be selected between 10, 12, 15, 20 and 25mm while the overall length ranges from 100mm to 300mm, with 50mm increments.  We ship this part in 3 days with a starting price of $14.20 (GSSTN10-100).

For detailed information please check our catalog page
https://www.misumiusa.com/PDFViewer.aspx?Metric=true2009&Page=1229.

Basic Load Rating in our catalog for each bearing is NOT the actual load that our bearings can withstand. Below is an example of how Basic Load Rating converts to actual load.

Light Load- Up to 0.075C (up to 7.5%)

Medium Load- from 0.075C to 0.15C (between 7.5% and 15%)

Heavy Load- Over 0.15C (Over 15%)

C- Basic Load Rating

Cr- Dynamic Load Rating

Cor- Static Load Rating 

Example: Bearing B6004ZZ (Cr= 9.4KN, Cor=5.05KN)

Actual Radial Load in Motion (Dynamic):

Light Load < 9.4*0.075< 0.705KN< 705N< 71.9kgf< 158.5lbf

Medium Load= 9.4*0.075~9.4*0.15= 0.705KN~1.41KN= 705N~1410N= 71.9kgf~143.8kgf= 158.5lbf~317lbf

High Load > 9.4*0.15> 1.41KN> 1410N> 143.8kgf> 317lbf

Conclusion:

We can see from above calculations that an actual radial load above 317lbf for B6004ZZ bearing is to  operate at a high load. The Misumi blog “Ball Bearing Life and Rated Load” will also help determine bearing life span knowing actual radial and axial load.