22218EK/C3 Spherical Roller Bearings

2218EK/C3 Spherical Roller Bearings

E means both indicate window type stamped steel cage.

K means inner ring bore with 1:12 taper.

C3 is the meaning of bearing clearance. Centripetal bearing radial clearance, larger than the standard clearance; C3 bearing clearance is generally used in the speed is particularly high, vibration is particularly large place. Clearance value according to the size of three groups, a group is the basic group (or called ordinary group), small clearance group (C2), large clearance group (C3, C4).

Diameter:

Spherical roller bearings are mainly used to bear radial load, but also can withstand small axial load, bear radial load capacity of high centring performance, allowing the inner circle of the outer ring relative tilt is not greater than $ 4 2. The conditions of the work of the tapered hole bearings inner circle along the axial movement can be adjusted radial clearance mounted in the tight sleeve bearings are suitable for mounting in the absence of shoulder on the optical shaft, applicable to the need for frequent installation and dismantling of the bearing occasions outer ring has lubricant grooves and three lubricant holes. The outer ring has lubricating oil groove and three lubricating oil holes, and its rear code increase "56--" There are lubricating oil groove holes in the bearing lubrication and cooling is good.

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