608RS 608-2RS Bearing ABEC-5 Skateboard Scooter Ball Bearing Miniature Skate Roller Bearings 608 RS 608 2RS 8 * 22 * 7 mm

BearingBearingFeatures and specifications:What Is a 608 bearing?The most common standardized ball bearing size is the 608 series. The 608 series is the original standard ball bearing. In the 608 series, the ball bearing typically consists of optional closures, inner race, outer race, balls, and a ball retainer.The ABEC rating is graded in five tiers of 1, 3, 5, 7, and 9 ratings, where the higher the rating, the tighter the tolerances of the bearing. Ball bearings that have a high ABEC system rating are used for high precision applications such as the aerospace industry or surgical equipment, and lower ABEC graded ball bearings are used for more everyday bearing applications. ABEC ratings also reflect the relative prices of ball bearings; the higher the grading, the more expensive the ball bearings.Bearing Specifications (Metric)Bearing Type: SealedBore Dia (d): 8.000 mmOuter Dia (D): 22.000 mmWidth (B): 7.000 mmRadius (min) (rs): 0.30 mmDynamic Load Rating (Cr): 2,799 NStatic Load Rating (Cor): 1,103 NMax Speed (Grease): 34,000 rpmMax Speed (Oil): 40,000 rpmMax. Shaft Shoulder Dia. Inner (Ui): 10.5 mmMin. Housing Shoulder Dia., Outer (Uo): 19.03 mmBall Qty: 7Ball Dia (Dw): 3.969 mmWeight (g): 12.80 gramsPrecision: ABEC-5Standard Clearance: C0/(K25)Material: 52100 Chrome SteelWidely used in household appliances, garden machinery, outdoor vehicles, industrial production, etc. Suitable for skateboards, longboards, inline skates, scooters, robots, ship rudder axles, etc.Features: small friction, fast speed, smooth, low noise.

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