What are C3 bearings used for?
C3 is designed for hot running environments; engines etc. where the bearing temp could reach 100deg or more. C4 more extreme temperature applications and higher speed environments. C5 the highest clearance bearing available, are extremely loose to start and can knock until at operating speeds and temperature.
Is C3 a high speed bearing?
It is also suitable for high speed applications. This bearing has a C3 radial internal clearance designation to indicate that the radial slack between the inner and outer rings is greater than the standard CN (normal) clearance.
Do I need a C3 bearing?
There are certain times when it is necessary to specify a bearing with increased clearance (C3 or C4): When there is a significant press fit on the shaft and/or housing. When there is a very slight misalignment between the bearing housing and shaft. When using in elevated temperatures.
Can I use a C3 bearing?
Bearings with C3 are in fact the most commonly used. The radial play grades for non-assembled bearings are defined in ISO standards: C2 – Less clearance than normal. C0 of CN – The standard for applications where the normally recommended fits, and under normal operating conditions, leave the correct clearance.
How much clearance does a C3 bearing have?
Internal clearance
| ISO clearance class | SKF designation suffix | Internal clearance |
|---|---|---|
| Group N | – | Normal |
| Group 3 | C3 | Greater than Normal |
| Group 4 | C4 | Greater than C3 |
| Group 5 | C5 | Greater than C4 |
What is C bearing?
The bearing Dynamic Capacity, C, is defined as the constant stationary radial load which a rolling bearing can theoretically endure for a basic rating life of one million revolutions. Values for this important bearing parameter, C, are shown in each bearing table except Crane Hook bearings.
What is C1 C2 C3 bearing clearance?
Radial bearing clearance is broken down into several groups: C1, C2, CN, C3, C4, and C5. CN is the “normal clearance” and is defined by DIN 620 and ISO 5753 and is used for bearings in normal operating conditions; C1 and C2 class bearing have radial clearances smaller than CN.
What is C4 clearance?
The so-called C2 C3 C4 bearings clearance refers to the amount of movement when the bearing is not installed on the shaft or the bearing box, the inner ring or outer ring is fixed, and then the bearing clearance is not fixed to move radially or axially .