Deep groove ball bearings mainly take radial load as well as take moderate axial load With less coefficient of friction high limiting speed large size range and colorful combination of structure; they are suitable for tractorsm motors automobiles motorcycles and other common machinery as a widely used type of bearings
6304 ZZ LLB LLH LLU ○ Deep Groove Ball Bearings Shielded type (ZZ) Noncontact sealed type (LLB LLF) Contact sealed type (LLU) Low torque sealed type (LLH) Open type B r r φD φd Boundary dimensions Basic load ratings Factor Limiting speeds Bearing numbers dynamic static dynamic static min1 non
Deep Groove Ball Bearings Friction torque Shield (Z ZE) Noncontact Rubber Seal (NK NKE) Contact Rubber Seal (NSL NSE) Characteristics Low Low 6821 6921 16021 6021 6221 6321 6822 6922 16022 6022 6222 6322 6817Z 6917Z ― 6017Z 6217Z 6317Z 6818Z 6918Z ― 6018Z 6218Z 6318Z
ZZ ZE 2NKE NK 2NK NKE 2NSE NSL 2NSL NSE N NR Open (no seals shields) Configuration Table 1 Standard Configuration of Singlerow Deep Groove Ball Bearings Design Cross section Note One seal or shield type bearings may have a seal groove on the other side Shield Sealed or shielded Bearings
