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4x9x4 ball bearing - 4mm axle - type 684ZZ
4x9x4 ball bearing - 4mm axle - type 684ZZ
- Single-row ball bearing sealed with plates on both sides. Bearing for universal applications including model motors and construction such as CNC
4x9x4 ball bearing - 4mm axle
Description
Single-row ball bearing sealed on both sides with plates. Bearing for universal applications including model motors and construction such as CNC.
Dimensions
- d - inside diameter. (axis): 4mm
- D - outer diameter.: 9 mm
- B - width (thickness): 4 mm
Price per 1 piece.
Miniature rolling bearings
The miniature bearings found in model engines are some of the most important components of the drive train. It is to them that we owe the high level of performance of the engines. The most common are miniature radial rolling bearings, the designation of which may look like this:
It is worth checking the condition of bearings in each engine, it is especially recommended to control the quality of operation of engines in multicopters. A damaged bearing is a source of vibration, which can cause many problems with the model.
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