6808DD NSK Sealed Deep Groove Ball Bearing 40x52x7mm

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: 40mm
Outside diameter: 52mm
Width: 7mm

Basic Load Ratings
Dynamic: 6.35kn
Static: 5.55kn

Speed Ratings
Limiting speed Grease: 6,700 rpm
Limiting speed Oil: 14,000 rpm