6808 Thin Section Deep Groove Ball Bearing 40*52*7mm Single Row SUNBEARING

6808 Thin Section Deep Groove Ball Bearing 40*52*7mm Single Row SUNBEARING Product Specification Bore diameter: 40 mm Basic dynamic load rating 4,923 N Outside diameter: 52 mm Basic static load rating 4,178 N Overall width: 7 mm Max Speed (Grease) 12,000 rpm Rows of Balls Single Ball Qty 21 Outer ring type: Unsplit Ball Dia (Dw) 3.5 mm Radial clearance class C0 Standard Clearance Mass 0.035 kg Closure type: 2RS Max. Shaft Shoulder Dia. Inner (Ui) 43.2 mm Material Chrome Steel Min. Housing Shoulder Dia., Outer (Uo) 48.99 mm Cage Material Sheet Steel Precision A1 Radius (min) (rs) 0.3 mm factor f0 16.3 6808 Bearing Short Description The main features: - Lubricant cannot be washed out - Reduced risk of corrosion - Larger lubricant reservoir - Longer lubricant service life Technical specifications: Material: steel Bearing Type: deep groove ball bearing 61808/6808 Material: 100Cr6 bearing steel Dimension AØxIØxB: 40x52x7 mm Seal: 2RS - double-sided grinding seal Execution: Solid Oil technology Silver 6808 Deep Groove Ball Bearing Material 6808 ball-bearing uses the polymer material. The polymer material is pressed into the free space of the bearing. This leaves a very small gap between the polymer and the rolling elements or the raceways, which allows the bearing parts to circulate freely. The polymer material has a sponge-like structure with millions of microscopic pores, which retain the lubricating oil due to the surface tension. In operation, the polymer matrix releases the lubricating oil into the small gap and thus ensures effective lubrication. Note: When pressing in ball bearings, always make sure that the bearing is always pressed in via the outer ring, which is also the seat of the bearing. Example hub: The hub body bearings are pressed in there via the outer ring. The bearing may therefore only be pressed in via the outer ring. Never over the inner ring.