3/4"x52x21 Bearing:Sealed
	Part Number: kit8712 Our Low Price: $14.95 Shipping Weight: 0.3 pounds
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Ball Bearings 3/4" x 52 x 21 mm One Bearing

Inner diameter is 3/4" (.750 inch), the outer diameter is 52mm and the width is 21mm, bearing is a popular size that could be used in many applications, Bearings are made of Chrome Steel, bearing has 2 Rubber Seals to protect the bearing from dust or any possible contamination. Chrome Steel Deep Groove Ball Bearing Size: 3/4" (.750 inch) x 52mm x 21mm ID (inner diameter)/Bore=3/4" OD (outer diameter)=52mm Width/Height/thickness=21mm Type: Deep groove ball bearings Closures: 2 Rubber Seals Quantity: One Bearing

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.