684-2RS ZEN Sealed Deep Groove Ball Bearing 4x9x4mm

View all ZEN Deep Groove Ball Bearings

Single row deep groove ball bearing. 4mm inside x 9mm outside x 4mm width, also known as 684 2rs, 684-rs, 684 2rs

ZEN Single row deep groove ball bearings are used in a wide variety of applications, they are simple in design, non-separable, suitable for high speeds and are robust in operation, and need little maintenance. Deep raceway grooves and the close conformity between the raceway grooves and the balls enable deep groove ball bearings to accommodate axial loads in both directions, in addition to radial loads.

Single row deep groove ball bearings are manufactured as open type (unsealed), sealed and shielded, the most popular sizes of deep groove ball bearings are also produced in sealed versions with shields or contact seals on one or both sides, the bearings with shields or seals on both sides are lubricated for life and are maintenance free. A sealed bearings seals has contact on the bearings inner and outer, a shielded bearings shield has contact on the outer only, and Shielded bearings are primarily intended for applications where the inner ring rotates. If the outer ring rotates, there is a risk that the grease will leak from the bearing at high speeds.

Principal Dimensions

Inside diameter: 4mm
Outside diameter: 9mm
Width: 4mm

WORKING INFORMATION
Radial Play (mm) 0,002 - 0,013
Load Rating C, dyn. N 641
C, stat. N 227
Weight (g) >2
Limiting Speeds (x1000rpm) Oil 63
Grease 53

ZENSpecializing in manufacturing German industry standard bearings in China.