The "6305" in the bearing code refers to the size and series of the bearing. The number indicates the bore diameter of the bearing, which is 25 mm in this case. The "ZZ" or "2Z" indicates that the bearing is shielded on both sides with metal shields to protect the internal components from contamination.
Deep groove ball bearings are suitable for a wide range of applications, including electric motors, automotive applications, industrial machinery, and more. They are known for their high durability, low noise, and smooth operation.
When selecting a deep groove ball bearing, it is important to consider factors such as load capacity, speed rating, and operating conditions to ensure proper performance and longevity.

Technical Data of 6305 ZZ / 2Z Deep Groove Ball Bearings

Inside Ø (mm):	25
Outside Ø (mm):	62
Width (mm):	17
Tolerance for inside-Ø (mm):	0/-0,01
Tolerance for outside-Ø (mm):	0/-0,013
Tolerance for width (mm):	0/-0,12
Rows Of Balls:	single row
Seal:	ZZ
Ring Material:	Rolling bearing steel
Internal Clearance:	CN (Standard)
Cage Material:	Sheet Steel
Flange:	no
Slot & Snap Ring:	no
Rolling Element Material:	Rolling bearing steel
Full Complement Ball Set:	no

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