Super precision double row angular contact thrust ball bearing
ID : 60 - 180 mm | BTM series SKF

To keep up with the ever increasing performance challenges of precision applications, SKF has completed the upgrade of the double direction angular contact thrust ball bearings assortment.
The existing basic design (BTW series) is now complemented by the redesigned high-speed BTM series.
Super-precision bearings in the BTM series have been redesigned to accommodate higher speeds, anywhere from 6% to 12% depending
on the size; minimize heat generation, even at higher speeds; provide high load carrying capacity and maintain a high degree of system
rigidity.
These redesigned bearings are dimensionally and functionally interchangeable with earlier design BTM series bearings.
Bearings in the redesigned BTM series are characterized by:
• high-speed capability
• high axial load carrying capacity
• low heat generation thanks to low friction design
• high stiffness
• extended bearing service life
When compared to the earlier design, bearings in the new BTM series provide a number of advantages. The optimized internal geometry
(e.g. raceway osculation or the increased number of balls) and the redesigned cage offer better performance in terms of higher speed
and lower operating temperatures, while maintaining a high load carrying capacity.
The redesigned cage also extends bearing service life because it no longer relies on the grooves in the inner and outer rings. The grooves on the earlier designed case had a tendency to collect solid contaminants that entered the bearing.
The range of BTM bearings series has been expanded to accommodate shaft diameters from 60 to 180 mm.