Self-aligning ball bearings have a common sphered raceway in the outer ring

This feature allows angular misalignment of the shaft relative to the housing

Therefore self-aligning ball bearings are particularly used in case of bearings where misalignment can occur from errors in mounting or from shaft bending

Double row self-aligning ball bearings are manufactured both with cylindrical bore and tapered bore (taper 1:12)

Self-aligning bearings with tapered bore can be delivered, at request, with adapter sleeves

Self aligning ball bearings are suitable for applications where misalignment can arise from errors in mounting or shaft deflection

Steel balls, cage, and inner ring can rotate freely at a certain angle, as it is stated that the bearings have self-aligning features

Accordingly, misalignment of the bearing shaft due to the machining and installation of the shaft and housing will be automatically adjusted

1208 self-aligning ball bearing has a spherical outer ring raceway, the balls and cage continue to rotate, this type of bearings is suitable when the displacement of the centers around which the shaft and housing rotate and shaft deflection are likely to occur

Bearing is made of chrome steel

Item: 1208 ball bearing

Type: self aligning bearing

Inner diameter: 40mm

Outer diameter: 80mm

Width: 18mm

Size: 40 x 80 x 18 mm

Dynamic load rating C: 19900N

Static load rating Co: 69500N

Grease lubrication: 10000rpm

Oil lubrication: 11600rpm

Physical characteristics of self aligning ball bearings:

Self-aligning ball bearing has two rows of balls

Common concave sphered raceway in the outer ring

Center of whose curvature meets that of the bearing it, so that the inner ring, balls and cage continue to rotate

Self-aligning ball bearing with a tapered bore can easily be fit to the shaft with an adapter assembly

Advantages of self aligning ball bearings:

Have the lowest friction of all rolling bearings

Run cooler even at high speeds

Easy mounting and dismounting

Permissible operating speed is not dependent on the common criteria like heat generation or cage stability and strength

Applications of self aligning ball bearings:

Self-aligning ball bearings are used for commercial ground shafting applications

Since axial load capacity is limited, self-aligning ball bearings are not suitable for applications with heavy axial loads

Furthermore, if an adapter is used on the tapered bore of the inner diameter, installation and disassembly are much simpler and for this reason adapters are often used on equipment with drive shafts

Introduction:

Self-aligning ball bearing is round balls in two races that inner ring and outer ring whose race is spherical

Application feilds:

Precision instruments, low noise motors, automobiles, motorcycles, metallurgy, mill, mining, petroleum, paper making, cement and sugar