Bearing roller

Roller is the bearing running bearing load components, is the weakest parts of roller bearing, its manufacturing quality of bearing performance has a great impact, is the main factor affecting the bearing life, roller of more types, according to the shape and size of tapered roller, cylindrical roller, spherical roller, spiral roller and all kinds of needle roller, etc..

The structure of the roller:

Single row roller bearing structure

Roller and track for line contact bearing. The load capacity is large, mainly bearing radial load. The friction between the rolling body and the collar flange is small, suitable for high speed rotation. The structure of this bearing is the inner ring and outer ring can be separated.

Inner ring or outer ring without flange roller bearing, inner ring and outer ring can be moved along the axial relative, so can be used as a free end bearing. Inner circle and outer circle any side of the double flange, the other side of the track circle with a single flange roller bearing, can bear a certain degree of one-way axial load. Generally use steel plate stamping keeper or copper alloy turned solid keeper. However, there is also a part of the use of polyamide molding keeper.

Double row roller bearing structure

Double row roller bearings have cylindrical bore and tapered bore two kinds of structure. The difference between cylindrical bore and tapered bore lies in the shape of the bore and its corresponding performance, tapered bore bearing in the assembly of the inner ring along the axial movement, can adjust the radial clearance of the bearing.

Four row roller bearing structure

The structure of the bearing is the inner ring, outer ring can be separated. Inner circle or outer circle without flange roller bearing, inner circle and outer circle can be moved along the axial relative, so can be used as a free end bearing.

Roller bearing characteristics:

Roller and track groove for line contact or bottom line repair contact, radial bearing capacity, suitable for heavy load and shock load.

Roller bearing bear radial load capacity is large, according to the structure of the collar flange, also can bear a certain one-way or two-way axial load.

Friction coefficient is small, suitable for high speed, speed close to deep groove ball bearings.

The shaft or seat hole processing requirements are high, strict control of the bearing after installation of the outer ring axis relative tilt, contact stress is not concentrated.

Inner ring or outer ring can be separated, easy to install and disassemble.