Model Number: 3984/3920 Brand Name: YTBT Key Specifications/Special Features: Designed in cone apexes of inner, outer ring raceway and roller raceway intersects at 1 point of its central lineBeside metric series products, there are inch series products which are applicable for load and impact loadSingle rows:Can bear simultaneously radial and single row axial loadWhen carrying radial load, creates axial thrust load

2 two bearings can be configured (or combined) fact to face or back to back, according to contact angel difference

Classified into 3 types: small, medium and large cone angle

Double rows:

• Classified into 2 types: capped and open
• Can bear radial load and double row axial load

Four rows:

• Composed of two double row inner rings and one double row outer ring
• Consisting two single outer rings between two inner rings
• 1 inner spacer among these three outer rings two central spacer is furnished
• Can be used to adjust clearance
• Can bear simultaneously axial load in two various directions
• Mainly used for roller bearings of rolling mill