6311DDU NSK Sealed Deep Groove Ball Bearing 55x120x29mm

NSK Pressed Steel Cages Single-row deep groove ball bearings are the most common type of rolling bearings. Their use is very widespread. In addition to open type bearings, these bearings often have steel shields or rubber seals installed on one or both sides and are prelubricated with grease. Also, snap rings are sometimes used on the periphery. As to cages, pressed steel ones are the most common. For big deep groove ball bearings, machined brass cages are used. Machined cages are also used for high speed applications.

Principal Dimensions
Inside diameter: 55mm
Outside diameter: 120mm
Width: 29mm

Basic Load Ratings
Dynamic: 71.5kn
Static: 44.5kn

Speed Ratings
Limiting speed Grease: 5,600 rpm
Limiting speed Oil: 6,700 rpm