17 Bearing for HPI Pro4 PRO-4
	Part Number: kit921 Our Low Price: $19.95 Shipping Weight: 2 pounds
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Complete Bearings Set HPI®Pro4  Set of 17 Bearings

	High Quality Complete set Ball Bearings for HPI®Pro4 , Set Contains 17 Bearings. each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease. Item: Complete Bearings Set Model: HPI®Pro4 Closures: 2 Metal Shields Quantity: 17 Pcs.

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.