Feature

●Bearing type: Open
●Bore Dia (d): 4.000 mm
●Outer Dia (D): 9.000 mm
●Width (B): 2.500 mm
●Radius (min) (rs): 0.10 mm
●Minimize friction to the greatest extent possible and improve rotational efficiency.

Description

Please confirm whether your bearing model and size are the same before purchasing! thank you.
684 Bearing specifications (metric)
Dynamic load rating (Cr): 545 N
Static load rating (Cor): 182 N
Max speed (Grease): 43,000 rpm
Max speed (Oil): 53,000 rpm
Max. shaft shoulder dia. inner (Ui): 5.2 mm
Min. housing shoulder dia., Outer (Uo): 8.1 mm
Ball dia (Dw): 1.588 mm
Weight (g): 1.0 grams
Precision: ABEC-5
Standard clearance: C0/(K25)
Material: 52100 chrome steel