10pcs 684ZZ Bearing 494 mm Miniature Ball Bearings 684 ZZ 618/4ZZ Hobby Emax Motor Quad L-940ZZ Bearing

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Product details

10 PCS 684ZZ Bearing 4*9*4 mm Miniature Ball Bearings 684 ZZ 618/4ZZ Hobby Emax Motor Quad L-940ZZ BearingFeatures and specifications:

Miniature ball bearings have a wide range of functions. Bearings are devices that allow parts to move relative to one another in a consined . The two most common types of bearings are plain bearings and rolling bearings. The most well-known of the rolling variety of bearings is the ball. A ball bearing can be highly effective in reducing friction between two parts that need to move freely.

684-ZZ Bearing specifications (metric)Bore Dia (d): 4.000 mmOuter Dia (D): 9.000 mmWidth (B): 4.000 mmRadius (min) (rs): 0.10 mmDynamic load rating (Cr): 545 NStatic load rating (Cor): 182 NMax speed (Grease): 53,000 rpmMax speed (Oil): 63,000 rpmMax. shaft shoulder dia. inner (Ui): 5.2 mn. housing shoulder dia., Outer (Uo): 8.1 mmQuantity: 10Ball dia (Dw): 1.588 mmWeight (g): 1.0 gramsStandard clearance: C0/(K25)Material: Bearing steel