24156ca/w33/c3 spherical roller bearing C3 is what mean
The C3 group is slightly larger than the C0 clearance group, benefit is the ability of some heat to prevent locking
Pro, C3 means clearance, that is, the gap between the rolling body and the inner and outer rings, small to large, can be divided into C2.C0.C3.C4.C5., which C0 for the general group clearance, usually omitted non-standard.
The bearing clearance is C3, the C0 is standard, the C3 is larger, and the C4 is larger