What does C3 mean on bearings?

What does C3 mean on bearings?

Internal clearance
Why are your bearings C3? Internal clearance being C3 means that the bearing has room for expansion if needed between the races of the bearing, whilst holding the outer ring and moving the inner ring in a radial movement you will detect a little amount of play between the two rings.

Is C3 a high speed bearing?

“What are C2, C3, C4 and C5 bearings?” C3, C4 and C5 bearings are bearings that have an additional internal radial clearance to cope with high speed environments where excess heat is generated. This is the characteristic of these higher than normal clearance bearings marked C3, C4 and C5.

How much clearance does a C3 bearing have?

The same bearing with a C3 fit will have about one thousandth of an inch clearance. This value is less than the diameter of a human hair! Internal clearances are also relative to the bearing’s bore size (the amount of radial play will increase as the bore size increases).

What does C3 stand for in bearings?

All standard clearance bearings have this movement, it may only be a small amount of movement but is controlled by international standards. C3 means the bearing has more clearance than standard.

Can you replace a C3 bearing with a C4 bearing?

Unless the bearing you are replacing specifically says C3 on it then you should not replace it with a C3 bearing, C3 Bearings are loose to the feel from new and often people complain at the quality of the bearing being poor and having more movement than the one they are replacing. C4 and C5 are even looser still than C3 clearance bearings.

What makes a bearing C3 clearance clearance clearance?

Same goes for the outer race pressed into the bearing bore. If its not a press fit or retained in some fashion it will wear out the bearing bore in no time. Your bearing C3 rating is for bearing class with the higher the number the tighter the tolerance of the matching parts, the less play in the system.

How big is a 6203 C3 ball bearing?

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