SKF Single row deep groove ball bearing with filling slots Steel Open 306/C3

Single row deep groove ball bearings with filling slots have a filling slot in both the inner and outer rings to accommodate more balls than standard deep groove ball bearings. Filling slot bearings have a higher radial load carrying capacity than bearings without filling slots, but their axial load carrying capacity is limited. They are also unable to operate at the same high speeds as bearings without filling slots. Deep groove ball bearings with filling slots are available open or with shields. They are also available with a snap ring groove with (NR) or without (N) the approprate snap rings.