Tapered roller bearing

Tapered roller bearings belong to separated type bearings, and both the inner and outer rings of the bearings have tapered raceways. This type of bearing is divided into different structural types based on the number of rows of installed rollers, such as single row, double row, and four row tapered roller bearings. Single row tapered roller bearings can withstand radial loads and axial loads in a single direction. When the bearing is subjected to radial load, an axial component will be generated, so another bearing that can withstand the opposite axial force is needed for balance

Usually, the cone angle of the outer race of a single row tapered roller bearing is between 10 ° and 19 °, and it can withstand both axial and radial loads simultaneously. The larger the cone angle, the greater the ability to withstand axial loads. A bearing with a large cone angle, with a trailing code B and a cone angle between 25 ° and 29 °, can withstand large axial loads. In addition, the clearance of single row tapered roller bearings can be adjusted during installation.

The outer ring (or inner ring) of a double row tapered roller bearing is a whole. The small end faces of the two inner rings (or outer rings) are similar, with a spacer ring in the middle. The clearance is adjusted by the thickness of the spacer ring, or the pre interference of the double row tapered roller bearing can be adjusted by the thickness of the spacer ring.

Four row tapered roller bearings have the same performance as double row tapered roller bearings, but they bear a greater radial load and a slightly lower limit speed than double row tapered roller bearings. They are mainly used in heavy-duty machinery.

Multi sealed double and four row tapered roller bearings, ZWZ provides long life, multi sealed double and four row tapered roller bearings. Personalized and brand new design of bearings, changing the traditional design method of fully sealed bearings, adopting a new sealing structure that combines sealing and dust prevention, improving sealing effectiveness and sealing performance. Compared with open structure bearings, multi sealed double and four row tapered roller bearings have a 20% to 40% longer lifespan; Reduce lubricant consumption by 80%.

Tapered roller bearings mainly bear radial and axial combined loads. The bearing capacity depends on the raceway angle of the outer ring, and the larger the angle, the greater the bearing capacity. This type of bearing belongs to the separated type and is divided into single row, double row, and four row tapered roller bearings based on the number of rows of rolling elements in the bearing. The clearance of single row tapered roller bearings needs to be adjusted by the user during installation; The clearance of double row and four row tapered roller bearings has been given according to user requirements when the product leaves the factory and does not require user adjustment.

Tapered roller bearings are widely used in industries such as automobiles, rolling mills, mining, metallurgy, and plastic machinery.