Four-Point Contact Ball Bearings

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Four-point contact ball bearings are radial single row angular contact ball bearings with raceways that are designed to support axial loads in both directions. For a given axial load, a limited radial load can also be supported . The bearings are separable, i.e. the outer ring with ball and cage assembly can be mounted separately from the two inner ring halves.Four-point contact ball bearings are radial single row angular contact ball bearings with raceways that are designed to support axial loads in both directions. For a given axial load, a limited radial load can be supported. These bearings take up considerably less axial space than double row bearings.

A four-point contact ball bearing makes it easy to simplify machine designs that have a combination of radial, thrust and moment loads because it can handle all three simultaneously. They are primarily used for slow to moderate-speed applications, or where oscillatory movement is predominant.A single four-point contact bearing usually makes a second bearing unnecessary,which provides some very important benefits.

Bearing Number	Bore Dia	Outer DIa	Width	Size
140 mm x 250 mm x 42 mm skf QJ 228 N2MA four-point contact ball bearings	10.50 KGS	68mm	C3	23128cke4c3-nsk
220 mm x 460 mm x 88 mm skf QJ 344 N2MA four-point contact ball bearings	6	Bearings with Housin	Height Selection	No
70 mm x 125 mm x 24 mm skf QJ 214 MA four-point contact ball bearings	3209b-2ztnc3-nsk	30.2mm	85mm	Two Metal Shields
150 mm x 320 mm x 65 mm skf QJ 330 N2MA four-point contact ball bearings	30 ～ 60	6	[Steel] Steel	Double