Full Complement Ceramic Sealed Bearing 21.5x31x7 ZrO2
	Part Number: Kit8448 Our Low Price: $205 Shipping Weight: 0.1 pounds
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Sealed Ball Bearings Full Complement Ceramic 21.5 x 31 x 7 mm Zirconia

Full Ceramic  sealed Ball Bearings, the inner diameter is 21.5, outer diameter is 31 and the width is 7, this is a popular size that could be used in many applications, Bearings are made of ZrO2 Ceramic Zirconium oxide. Item: Ball bearings Type: Full Ceramic  Quantity:One ball bearing  Bearing Size: 21.5 mm x 31mm x 7mm Dimensions: 21.5*31*7 mm/Metric ID (inner diameter)/Bore=21.5mm OD (outer diameter)=31mm Width/Height/thickness=7mm Inner/outer races:  ZRO2 Ceramic Balls: ZRO2 Ceramic Cage: No Cage Closures: PTFE covers

VXB Category: Full ceramic bearings

Ball Bearings

Ball Bearings main function is to minimize the friction caused by any relative movement of two or more objects, in order to reach the maximum efficiency of energy usage, we aim to minimize the "converted to heat" energy by using Ball Bearings.
A great variety of Ball Bearings types and Ball Bearings designs are known, the manifolds of the ball bearings is justified by their various purpose of the ball bearings needed application, each type of ball bearings has a certain characteristic technical properties, rolling ball bearings have the following advantages compared with the plain bearings:

• Low starting moment.
• Low friction at all speeds.
• Low energy consumption.
• High reliability.
• Small width.
• Low consumption of lubricant.
• Long relubrication intervals.
• Easy to mount and dismount.
• Standardized dimensions.