Trunnion Bearing

Pillow block trunnion bearings

Its best to not use setscrew style bearings on trunnions. As the rotary unit rotates the load of the unit transfers to the setscrews causing them to break. 

Setting trunnion bearings

Split housing bearings with tapered locked sleeves are PREs preferred bearings. They allow you to check the bearing roller clearance and change the grease in the housing during an outage. 

Internal bearings

Some manufactures use internal bearings. This style can be hard to detect bearing failure until its to late.

Tapper lock bearings

A taper Locke bearing 

SKF bearings

A SAF split housing has great bearing load rating plus misalignment angle. 

Trunnion bearing failure

This is an example of a trunnion bearing failure.